WO2020197133A1 - Digital abutment and method for manufacturing dental restorative material using same - Google Patents

Digital abutment and method for manufacturing dental restorative material using same Download PDF

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Publication number
WO2020197133A1
WO2020197133A1 PCT/KR2020/003415 KR2020003415W WO2020197133A1 WO 2020197133 A1 WO2020197133 A1 WO 2020197133A1 KR 2020003415 W KR2020003415 W KR 2020003415W WO 2020197133 A1 WO2020197133 A1 WO 2020197133A1
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WO
WIPO (PCT)
Prior art keywords
abutment
digital
unique identification
virtual
identification mark
Prior art date
Application number
PCT/KR2020/003415
Other languages
French (fr)
Korean (ko)
Inventor
김진철
김진백
Original Assignee
주식회사 디오
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Publication date
Application filed by 주식회사 디오 filed Critical 주식회사 디오
Publication of WO2020197133A1 publication Critical patent/WO2020197133A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0001—Impression means for implants, e.g. impression coping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam

Definitions

  • the present invention relates to a digital abutment and a method of manufacturing a dental restoration using the same, and more particularly, to a digital abutment that improves procedure convenience and scan recognition rate, and a method of manufacturing a dental restoration using the same.
  • dental restorations including dentures and prostheses refer to artificial periodontal tissue in the oral cavity that artificially restores appearance and function by replacing a missing tooth.
  • the dental restoration is installed inside the oral cavity to restore mastication function and prevent the periodontal tissue from being deformed, and may be divided into partial/complete dentures and partial/complete prostheses according to the number of missing teeth.
  • the denture is installed by being adhered to the surface of the gum by applying a dental adhesive to the inner joint groove, and the prosthesis may be installed through a fixture placed in the alveolar bone.
  • the dentures since the dentures are supported on the outer surface of the gums, they cause deformation of the gums or a large amount of foreign body sensation.
  • a plurality of fixtures capable of supporting the prosthesis are placed on the gum at predetermined intervals along the dental arch, and an abutment is coupled to the upper end.
  • the prosthesis has a fastening portion fixed to the upper end of the abutment at a position corresponding to each upper end of the abutment.
  • the conventional abutment has a coupling protrusion coupled to the upper end of the fixture, a margin portion provided on the upper side of the coupling protrusion and provided inside the soft tissue of the gum, and a margin portion provided on the upper side of the margin portion and coupled to the fastening portion It includes a coupling portion.
  • the fastening part may be provided as a support cylinder that is arranged vertically in correspondence with each position of the abutment, or may be formed as a fastening groove recessed in a vertical direction corresponding to an upper end profile of the abutment. That is, as the coupling part of the abutment is substantially inserted into the fastening part and fixed by a fixing means, the prosthesis may be installed inside the oral cavity.
  • FIG. 1 is an exemplary view showing a conventional abutment.
  • a conventional abutment is provided in various sizes and shapes corresponding to the size and shape of a person's gums and fixtures, and a unique model number is assigned to each type of abutment.
  • the model number was displayed on the side surface of each abutment by a method such as laser engraving.
  • the conventional abutment is set to various diameters corresponding to the diameter of the fixture, and the height of the coupling portion, that is, a post, is set to various heights corresponding to the height of the prosthesis.
  • the height of the margin portion that is, a cuff, was set to various heights corresponding to the height of the gum of the person to be treated.
  • the conventional abutment has a problem in that it is difficult to identify the type of the abutment with the naked eye because the portion indicated for the model number is buried by the soft tissue of the oral cavity when it is installed inside the oral cavity of the person to be treated.
  • the margin of the conventional abutment when the margin of the conventional abutment is inserted into the soft tissue of the gum, the margin is not exposed to the outside of the gum, so the cuff cannot be visually identified, making it difficult to confirm the type of the abutment. .
  • the present invention has as a solution to provide a digital abutment with improved procedure convenience and scan recognition rate, and a method of manufacturing a dental restoration using the same.
  • the present invention provides a first step of scanning a target arch in which a digital abutment is placed on which a unique identification mark is formed for recognition of a scan image processing through an oral scanner;
  • the digital abutment scanned through the oral scanner and the surface information of the target arch are converted into 3D digital data through scan image processing and obtained, and surface information on the digital abutment converted into 3D digital data is obtained.
  • the virtual abutment extracted from the digital library is virtually arranged and replaced in the 3D work image, and a virtual mating groove corresponding to the outer profile of the virtual abutment is set.
  • a third step of generating design information of an artificial crown And it provides a method for manufacturing a dental restoration using a digital abutment including a fourth step in which an artificial crown is finally manufactured in response to the design information.
  • the present invention relates to a digital abutment used for generating design information of an artificial crown corresponding to a virtual abutment extracted from a digital library that is converted into 3D digital data through scan image processing and is virtually placed in a 3D working image.
  • the present invention provides the following effects.
  • the size and shape of a digital abutment in the process of extracting a virtual abutment that corresponds accurately from a digital library using a three-dimensional working image of a state in which a plurality of types of digital abutments provided as fine sizes are placed in the oral cavity. Since it is possible to design an accurate artificial crown that matches the virtual abutment through visual recognition of the unique identification mark corresponding to, confusion between the operator can be prevented.
  • a unique identification mark is formed in the form of a groove in the upper part of the joint in response to the size and shape of the digital abutment, making it easy to identify with the naked eye.
  • the artificial crown due to incorrect placement can be prevented and the convenience of the procedure can be remarkably improved.
  • a unique identification mark is formed in the form of a groove on the upper part of the coupling part, so that when molding with the inner profile of the mating groove of the artificial crown corresponding to the outer surface profile of the coupling part, the contact area filled with the curable resin is maximized, so that the adhesion is increased.
  • the bonding strength with the digital abutment may be improved.
  • 1 is an exemplary view showing a conventional abutment.
  • FIG. 2 is a flow chart showing a method of manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
  • 3A and 3B are perspective views showing a digital abutment according to an embodiment of the present invention.
  • FIGS. 4A and 4B are perspective views showing a digital abutment according to a first modified example of an embodiment of the present invention.
  • 5A and 5B are perspective views showing a digital abutment according to a second modified example of an embodiment of the present invention.
  • FIG. 6 is an exemplary view showing a three-dimensional working image in a method for manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
  • FIGS. 3A and 3B are perspective views illustrating a digital abutment according to an embodiment of the present invention.
  • 4A and 4B are perspective views showing a digital abutment according to a first modified example of an embodiment of the present invention
  • FIGS. 5A and 5B are a digital abutment according to a second modified example of an embodiment of the present invention. It is a perspective view showing the ment.
  • Figure 6 is an exemplary view showing a three-dimensional work image in the method for manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
  • a method for manufacturing a dental restoration using a digital abutment includes scanning the target arch in which the digital abutment is placed (s10), and generating a three-dimensional work image (s20). ), generating design information of the artificial crown (s30), and a series of steps of final manufacturing of the artificial crown (s40).
  • the method of manufacturing a dental restoration using such a digital abutment is preferably performed through a dental restoration manufacturing system including a planning unit.
  • each image data such as a plurality of scanning images and CT images is acquired using an imaging device such as an oral scanner or a computed tomography machine, and transmitted to the planning unit.
  • a 3D work image which is final image data, is generated through an image processing process such as alignment, overlapping, swapping, correction, or matching of the plurality of scanning images and the CT images through the planning unit.
  • a virtual artificial crown which is design information of the artificial crown, is generated through the planning unit so as to precisely match the oral cavity of the operator based on the generated three-dimensional work image.
  • the planning unit includes a storage unit storing each image data, a processing unit processing the integrated scanning image and the three-dimensional work image, and the virtual artificial crown based on each image data.
  • an input unit for inputting information and a control command to the processing unit an input unit for outputting the input information and control commands, and generated data such as each image data, the three-dimensional work image, and the virtual artificial crown are included. .
  • the planning unit may further include a communication unit capable of receiving each image data or transmitting each image data or generated data to an external device. That is, each image data acquired using the imaging device is transmitted to the planning unit through the communication unit, and each image data or generated data is transmitted to the external device through the communication unit.
  • the external device is preferably understood as a manufacturing device capable of manufacturing a real artificial crown corresponding to the virtual artificial crown, such as a 3D printer or a milling machine.
  • the target arch in which the digital abutment 100, 200, and 300 having unique identification marks 14a, 14b, and 14c for scanning image processing recognition is placed on the upper part is scanned through an oral scanner (s10).
  • the target arch means a dental jaw in which the dental restoration is substantially installed, and the arch arch means a tooth that is occluded with the target arch.
  • the target arch is the mandible and the grand arch is the upper jaw, as an example and described.
  • a fixture is placed in the alveolar bone of the target arch.
  • the digital abutment (100, 200, 300) is preferably provided to mediate the connection between the fixture and the artificial crown.
  • the fixture is installed substantially perpendicular to the alveolar bone on the anterior tooth side, but in order to prevent damage due to contact or pressure with the inferior alveolar nerve in particular on the posterior side of the mandible, the fixture will be installed obliquely at a preset angle. I can.
  • an inner circumferential groove is formed in the upper end of the fixture so that the fastening protrusion 11 of the digital abutment (100, 200, 300) is inserted and fastened, and a hexa groove is formed in the inner circumference of the inner circumferential groove along the circumferential direction. desirable.
  • the digital abutment (100, 200, 300) includes a fastening protrusion (11), a margin portion (12), a coupling portion (13), and unique identification marks (14a, 14b, 14c). .
  • the digital abutment (100, 200, 300) is converted into 3D digital data through scan image processing, is virtually placed on the 3D work image (1d), and is extracted from the digital library, corresponding to the virtual abutment (100k). It is preferable to understand it as a device used to generate the design information 400d.
  • the fastening protrusion 11 may be formed as an outer profile whose radius expands from a lower side to an upper side, and may be provided in a shape having a hollow inner profile penetrating in the vertical direction.
  • the outer circumferential surface of the fastening protrusion 11 has a hexa protrusion 11a formed along the circumferential direction corresponding to the hexa groove so as to fit into the hexa groove formed on the inner circumferential surface of the upper end of the fixture installed in the alveolar bone.
  • the hexa protrusion 11a may be formed on an outer surface of the lower end side of the fastening protrusion 11 as a plurality of flat surfaces that are bent at predetermined intervals along the circumferential direction.
  • a case in which the entire shape of the flat surface of the hexa protrusion 11a formed along the circumferential direction is formed as a six surface is illustrated as an example, but is not limited thereto.
  • the coupling direction of the digital abutment (100, 200, 300) can be easily determined by a simple method in which the hexa protrusion (11a) is joined to the hexa groove of the fixture, and the digital abutment (100, 200, 300) is constrained. Rotation can be prevented in advance.
  • a through hole is formed through the inside of the fastening protrusion 11 so that a fastening screw that mediates fastening with the fixture is inserted.
  • a through hole and a communication hole 13e to be described later are formed through the inside of the digital abutment 100,200,300 in the vertical direction, and the through hole and the communication hole 13e are preferably communicated with each other.
  • the through hole is formed inside the fastening protrusion 11, and the communication hole 13e is formed inside the coupling part 13.
  • a stepped portion protruding integrally extending radially inward from an inner periphery of the digital abutment 100, 200, 300 between the through hole and the communication hole 13e is formed.
  • the fastening screw has a head portion extending radially outwardly along the circumferential direction at one end, and a screw thread is formed at the outer circumference of the other end side to be screwed into the inner peripheral groove of the upper end of the fixture.
  • the head portion of the fastening screw may be locked and restrained by a stepped portion extending from an inner periphery between the through hole and the communication hole 13e in a radial direction.
  • the stepped portion is formed as the inner diameter of the through hole is smaller than the inner diameter of the communication hole 13.
  • the fastening screw may extend to a length capable of connecting the stepped portion and the inner peripheral groove of the upper end of the fixture.
  • the digital abutment (100, 200, 300) and the fixture are mutually stably as the head of the fastening screw is engaged with the stepped portion and the other end of the fastening screw is fastened to the inner circumferential groove of the upper end of the fixture. Can be restrained.
  • the margin portion 12 is integrally provided on the upper side of the fastening protrusion 11, it is preferable that the fixture is formed in an outer profile corresponding to the shape of the periphery of the gum where the fixture is placed, and is disposed inside the soft tissue of the gum .
  • the margin portion 12 is preferably provided with an outer profile substantially continuous with the surface of the gum on the upper portion of the fastening protrusion 11 to prevent the inflow of foreign substances into the gum.
  • the margin part 12 may be formed in a shape in which the diameter increases from the lower side to the upper side so as to be disposed inside the soft tissue of the gum.
  • the upper surface portion 12a of the margin portion 12 is formed integrally with the outer surface of the coupling portion 13 and is provided to protrude radially outward from the outer surface of the coupling portion 13, and the It is possible to support the lower end of the artificial crown coupled to the coupling portion (13).
  • the lower portion of the digital abutment (100, 200, 300) based on the upper surface portion (12a) of the margin portion (12) is disposed inside the gum to be fastened to the fixture, and the upper portion is exposed to the outside of the gum. It is desirable to understand.
  • the length of the margin part 12 in the vertical direction that is, a cuff may be differently set and provided for each of the digital abutments 100, 200, and 300.
  • the digital abutment 100, 200, and 300 provided with a cuff corresponding to the height of the gum of the person to be treated may be selected and installed by the operator.
  • the coupling part 13 is provided integrally on the upper side of the margin part 12, and substantially corresponds to the inner profile of the mating groove so that it fits into the mating groove formed in the lower part of the artificial crown installed in the oral cavity of the person to be treated. It is preferable to be provided with an outer profile.
  • the side portion 13a of the coupling portion 13 may be formed with an alignment groove 13b that extends in the circumferential direction or in the front-rear direction along the outer surface.
  • the alignment groove 13b may be provided as a hexa surface portion having a hexagonal cross section so as to correspond to the hexa protrusion 11a and the hexa groove.
  • At least one de-cut portion 13c may be formed on the side portion 13a of the coupling portion 13.
  • the alignment groove (13b) and the de-cut (13c) is preferably formed to provide a visible reference indicator for the direction of placement when the digital abutment (100, 200, 300) is coupled to the fixture. Accordingly, even if the fastening protrusion 11 is inserted inside the upper end of the fixture and is covered, the operator visually checks the alignment groove 13b and the de-cut part 13c, and the digital abutment (100, 200, 300) The fastening direction of the can be easily determined. Accordingly, the installation convenience of the digital abutment 100, 200, and 300 can be significantly improved.
  • the coupling portion 13 is integrally provided on the upper portion of the margin portion 12 and is inserted into the fitting groove of the artificial crown.
  • the surface of the coupling portion 13 may be roughened.
  • the surface of the coupling part 13 is roughened to increase the scan recognition rate during oral scanning, and at the same time, the bonding force through the adhesive material filled between the mating groove of the artificial crown and the outer surface of the coupling part 13 is further enhanced. It can be improved.
  • the communication hole 13e communicating with the through hole is formed in the coupling part 13. That is, it is preferable to understand that the communication hole 13e is integrally communicated with the through hole, and the stepped portion is formed between the through hole and the communication hole 13e.
  • the unique identification marks 14a, 14b, and 14c are on the upper part of the coupling part 13 for individual matching with the virtual abutment 100k stored in the digital library. It is preferable that it is displayed to be visually recognized and provided as a visible reference indicator.
  • individual matching means that the surface information for the plurality of types of digital abutments 100, 200, 300, which are scanned through an oral scanner and converted into 3D digital data, are individually matched by the unique identification marks 14a, 14b, and 14c. It means that the virtual abutment 100k corresponding thereto is replaced.
  • the unique identification mark (14a, 14b, 14c) is selectively at least on the upper portion of the coupling part 13 for individual identification of the digital abutment (100, 200, 300) given by size and shape, that is, by a plurality of types. It is preferable to be provided with one or more grooves formed.
  • the unique identification mark (14a, 14b, 14c) is given according to the size and shape of the digital abutment (100, 200, 300), but formed and arranged on the lower recognition surface above the coupling part 13 to provide a visible reference indicator. This is desirable.
  • the recognition lowering surface means a smooth surface portion of the coupling portion 13. That is, there is a concern that the external profile of the coupling part 13 may not be continuously recognized by the oral scanner due to reasons such as a smooth surface structure or performance of the oral scanner during scanning of the coupling part 13. In order to solve this problem, it is preferable that the unique identification marks 14a, 14b, 14c are formed on the recognition deterioration surface of the coupling portion 13.
  • the unique identification mark (14a, 14b, 14c) is preferably provided with at least one groove selectively formed on the recognition deterioration surface.
  • the unique identification marks 14a, 14b, and 14c according to the present invention are formed in an intaglio shape will be illustrated and described as an example.
  • the unique identification mark may be formed in the form of a protrusion extending from the recognition deterioration surface, and the shape is not limited thereto as long as the unique identification mark is displayed so that it is visually recognized.
  • the inner profile of the fitting groove of the artificial crown is formed to substantially correspond to the outer profile of the coupling portion 13 including the groove.
  • At least one or more selectively is formed also encompasses a shape in which the unique identification mark is not formed in order to provide a function of distinguishing between each of the unique identification marks assigned to the size and shape of each digital abutment.
  • the unique identification marks 14a, 14b, and 14c are formed differently in the shape of a groove corresponding to the size and shape of the digital abutment (100, 200, 300).
  • the grooves are preferably spaced apart from each other at a predetermined interval.
  • the unique identification mark (14a, 14b, 14c) preferably includes a first unique identification mark (14a), a second unique identification mark (14b), and a third unique identification mark (14c).
  • the digital abutment (100, 200, 300) is preferably formed with the unique identification mark (14a, 14b, 14c) corresponding to the size and shape.
  • the digital abutment (100, 200, 300) preferably includes the first to ninth digital abutment (100a, 100b, 100c, 200a, 200b, 200c, 300a, 300b, 300c).
  • the basic configuration except for the unique identification marks 14a, 14b, and 14c in one embodiment of the present invention and its first and second modifications are the same, and the same configurations are indicated by the same reference numbers.
  • the first unique identification mark 14a is selectively formed at least one or more corresponding to the size and shape of the digital abutment 100, but formed in different numbers. desirable. For example, when one first unique identification mark 14a is formed on the first digital abutment 100a, a second digital abutment provided in a size and shape different from that of the first digital abutment 100a Two first unique identification marks 14a may be formed on the ment 100b.
  • the first unique identification mark (14a) surrounds the communication hole (13e) and is recessed in a semicircle shape in the upper surface (13d) of the coupling part (13). Do.
  • the second unique identification mark (14b) is selectively formed at least one or more corresponding to the size and shape of the digital abutment 200, it is formed in a different number. desirable.
  • the second unique identification mark 14b according to the first modification of the embodiment of the present invention is formed in a circular cross section in the upper surface 13d of the coupling part 13.
  • the second unique identification mark (14b) may be formed along the outer periphery of the upper surface portion (13d) of the coupling portion (13), or in some cases, on the upper surface portion (13d) of the coupling portion (13). They may be arranged in series with each other.
  • the third unique identification mark (14c) is selectively formed at least one or more corresponding to the size and shape of the digital abutment 300, it is formed in a different number. desirable.
  • the third unique identification mark 14c according to the second modification of the embodiment of the present invention is recessed in an intaglio shape along the circumference of the side portion 13a of the coupling portion 13.
  • the third unique identification mark 14c may be recessed along the outer surface of the upper side of the side portion 13a of the coupling portion 13 including the alignment groove 13b and the decut portion 13c. . Therefore, even after the margin portion 12 is inserted into the soft tissue of the gum, a unique identification mark (14a, 14b, 14c) that can be easily visually identified on the upper portion of the coupling portion 13 is shown in the digital abutment (100, 200, 300). It is formed in the shape of a groove corresponding to the size and shape. Through this, incorrect placement of the artificial crown caused by the operator's error can be prevented, and the convenience of the procedure can be significantly improved.
  • the unique identification marks 14a, 14b, 14c are formed in the shape of a groove on the upper part of the coupling part 13. Accordingly, the contact area to be filled with the curable resin is maximized when it is molded with the inner profile of the fitting groove of the artificial crown corresponding to the outer profile of the coupling part 13. Through this, since the adhesive force between the coupling portion 13 and the fitting groove is increased, when an artificial crown is installed in the oral cavity, the coupling force with the digital abutment 100, 200, 300 may be improved.
  • the target arch in which the digital abutment (100, 200, 300) is placed is scanned through the oral scanner.
  • the digital abutment (100, 200, 300) scanned through the oral scanner and the surface information of the target arch are converted into 3D digital data through scan image processing by the planning unit and obtained (s20).
  • a three-dimensional work image 1d including surface information on the digital abutment 100, 200, and 300 converted into three-dimensional digital data by the planning unit is generated (s20).
  • the three-dimensional working image (1d) is preferably understood as three-dimensional digital data including the surface information (2d) of the target arch and the placement information (7d) of the fixture.
  • the surface information (2d) of the target arch has the same size and shape substantially corresponding to the actual target arch of the person to be treated.
  • the mounting information 7d of the fixture has the same size and shape corresponding substantially to the actual fixture.
  • the surface information is converted into 3D digital data as at least three bent portions of the surfaces of the coupling portions 13 are recognized by the oral scanner and then scanned by the planning unit.
  • the bent portion of the surface of the coupling portion 13 is the unique identification mark (14a, 14b, 14c), the alignment groove (13b) and the de-cut portion (13c), and the upper surface of the margin portion (12) It is desirable to understand that it includes (12a).
  • the surface of the coupling portion 13 by the unique identification mark (14a, 14b, 14c), the alignment groove portion (13b) and the decut portion (13c), and the upper surface portion (12a) of the margin portion (12) As corners and vertices that can be easily scanned are formed, the recognition deterioration surface is minimized.
  • the target arch in which the fixture and the digital abutment (100, 200, 300) are placed is scanned through the oral scanner. That is, it is preferable that the oral scanner scans the entire target arch of the person to be treated and the coupling part 13 exposed to the surface of the gum.
  • the unique identification mark (14a, 14b, 14c), the alignment groove (13b), the de-cut part (13c), and the upper surface (12a) of the margin part (12) is the 3D digital data identification criteria It can be obtained as negative (k1, k2, k3).
  • the identification reference portions k1, k2, and k3 are included in the surface information of the coupling portion 13 of the digital abutment 100, 200, and 300.
  • the identification reference units k1, k2, and k3 are scanned through the oral scanner and converted into virtual 3D digital data as scanned image processing is performed by the processing unit of the planning unit.
  • the identification reference unit (k1, k2, k3) includes a first identification reference unit (k1), a second identification reference unit (k2), and a third identification reference unit (k3).
  • the first identification reference unit k1 means virtual 3D digital data corresponding to the unique identification marks 14a, 14b, and 14c of the real object.
  • the second identification reference unit k2 means virtual 3D digital data corresponding to the alignment groove 13b of the real object.
  • the third identification reference part k3 means virtual 3D digital data corresponding to the edge of the upper surface part 12a of the margin part 12 of the real object.
  • the identification reference unit may include virtual 3D digital data corresponding to the edge of the decut unit 13c of the real object.
  • the unique identification mark (14a, 14b, 14c) for scanning image processing recognition is formed on the upper part of the coupling part 13, and the unique identification mark (14a, 14b, 14c) is formed when scanning through the oral scanner. Can be recognized. Moreover, the alignment groove (13b) and the de-cut (13c) formed in the side portion (13a) of the coupling portion (13) when scanning through the oral scanner, and the edge of the upper surface portion (12a) of the margin portion (12) Can be recognized.
  • the surface structure formed by the groove of the unique identification mark (14a, 14b, 14c), the alignment groove (13b) and the decut part (13c) when scanning the coupling part 13 through the oral scanner is enhanced by the grooves or corners of.
  • the scan recognition rate is enhanced by the unique identification marks 14a, 14b, and 14c in the form of grooves formed on the recognition-degrading surface of the coupling portion 13 scanned through the oral scanner.
  • minute errors between the real digital abutments 100.200 and 300 and the correspondingly converted 3D digital data are substantially removed, and thus the accurate 3D work image 1d can be obtained.
  • the virtual abutment 100k automatically extracted from the digital library in response to the unique identification marks 14a, 14b, 14c of the digital abutment 100, 200, 300 is transferred to the three-dimensional work image 1d by the planning unit.
  • design information 300d of the artificial crown in which the virtual fitting groove 301d corresponding to the outer profile of the virtual abutment 100k is set is generated by the planning unit (s30).
  • the virtual abutment 100k has substantially the same size and shape as the digital abutment 100, 200, and 300.
  • the virtual abutment 100k refers to 3D vector data capable of identically reproducing the appearance and structure of the real digital abutment 100, 200, and 300. It is preferable that a plurality of such virtual abutments 100k are previously stored in the digital library by matching and matching shapes to real digital abutments 100, 200, and 300 provided in various standards and types.
  • the virtual abutment 100k may be obtained through direct scanning of the real digital abutment 100, 200, or 300 or through CAD/CAM design information. In this case, it is preferable to understand the digital library as a database of three-dimensional appearance information obtained for the real digital abutments 100, 200, and 300 provided in various standards and types.
  • the virtual abutment 100k may be automatically extracted from the digital library through the planning unit corresponding to the size and shape of the real digital abutment 100, 200, and 300.
  • the virtual abutment 100k may be manually extracted by the planning unit.
  • the virtual abutment (100k) of the type matching the number and shape of the unique identification marks (14a, 14b, 14c) formed on the coupling part 13 through the oral scanner is digital library through the planning part. It is preferably automatically extracted from.
  • the virtual abutment (100k) is applied to the surface information of the three-dimensional work image (1d) including the surface information (2d) of the target arch and the placement information (7d) of the fixture by the planning unit. It is preferred to be virtually arranged. That is, the 3D digital data of the combining unit 13 converted by scanning image processing by the planning unit is replaced with the virtual abutment 100k extracted from a digital library.
  • the three-dimensional digital data converted from the coupling portion 13 is recognized by the oral scanner at least three curved portions of the surface of the coupling portion 13 including the unique identification mark (14a, 14b, 14c) Then, the scanning image is processed by the planning unit.
  • the scan recognition rate will be enhanced. I can. Accordingly, the automatically extracted virtual abutment 100k corresponding to the unique identification marks 14a, 14b, 14c is virtually placed and replaced in the 3D working image 1d. Accordingly, it is possible to generate the precise design information 300d of the artificial crown corresponding to the outer profile of the virtual abutment 100k, and thus the precision of the final manufactured dental restoration can be significantly improved.
  • the surface information of the target arch (2d) corresponding to the outer surface profile of the target arch side and the surface information of the arch arch corresponding to the outer surface profile of the arch side facing the target arch Is imaged and displayed in three dimensions.
  • the three-dimensional working image 1d includes information on the occlusal vertical dimention between the target arch and the arch arch.
  • the vertical height may be obtained by a coupling bite (not shown) that is separately provided and inserted into the oral cavity.
  • the coupling bite (not shown) preferably includes one surface portion corresponding to the outer surface of the gum portion of the target arch and the other surface portion occluding the end of the arch arch.
  • the coupling bite (not shown) is preferably provided with a thickness corresponding to the vertical height of each person to be treated with an interval between the corrected one surface portion and the corrected other surface portion.
  • the vertical height for each person to be treated is an interval between the upper and lower jaws that can be occluded in a comfortable and comfortable state for the person to be occupied. Accordingly, in a state in which the target arch and the grand arch are occluded by the joining bite (not shown), each image data considering the vertical height can be obtained.
  • the corresponding to the vertical height of each subject means that the distance between one side and the other side of the combination bite is pre-manufactured to correspond to the vertical height of each subject, and the combination bite between the target arch and the grand arch ( (Not shown) is installed, but it is preferable to understand that it encompasses the correction to correspond to the vertical height of each person to be treated by the occlusal pressure.
  • each image data such as a plurality of scanning images and CT images is acquired using an imaging device such as an oral scanner or a computed tomography machine, and transmitted to the planning unit.
  • the plurality of scanning images includes a first scanning image of the outer surface of the target arch, a second scanning image of the outer surface of the grand arch, and a third scanning including image information about the combined byte (not shown). May contain images. That is, the surface information 2d of the target arch is obtained from the first scanning image, and the surface information of the arch arch is obtained from the second scanning image.
  • the image information on the combined byte includes information obtained by scanning the combined byte and information obtained by scanning the target arch and the grand arch that are occluded by the combined byte. .
  • a match rate between image units of each preset comparison area of the first scanning image and the second scanning image and a corresponding area of the third scanning image is calculated.
  • each comparison area of the first and second scanning images is aligned and arranged in the corresponding area of the third scanned image.
  • the surface information 2d of the target arch and the surface information of the arch arch are included in the three-dimensional work image 1d in a state arranged to correspond to the vertical height.
  • the CT image is obtained by directly imaging the oral cavity in a state in which the binding bite is combined to correspond to the vertical height using a computed tomography machine.
  • the CT image includes 3D data of the alveolar bone on the side of the target arch, excluding soft tissues such as lips, cheek mucosa, and gums through which radiation is transmitted due to its low density.
  • the CT image may include three-dimensional data of the antagonal teeth spaced from the target arch side and corresponding to the vertical height by the combination byte.
  • the placement information of the fixture and the digital abutment may be set in correspondence with the abutment coupling portion profile displayed on the scanning image and the CT image by protruding outside the gum portion of the target arch. That is, in the first scanning image, the surface information 2d of the target arch in which the coupling part profile protrudes outward from the gum part may be displayed in three dimensions.
  • the coupling portion profile displayed in the three-dimensional working image 1d includes surface information scanned with respect to the coupling portion of the abutment previously erected in the target arch and the virtual abutment 100k. It is desirable to understand.
  • the surface information of the target arch on which the coupling part profile is displayed, and the surface information of the arch arch spaced apart in correspondence with the vertical height are imaged and displayed in three dimensions.
  • the design information (300d) of the artificial crown is generated in the three-dimensional work image (1d) including the surface information (2d) of the target arch, the surface information of the grand arch, and the implantation information.
  • design information 300d of the artificial crown in which the virtual fitting groove 301d corresponding to the outer profile of the coupling portion of the virtual abutment 100k is set is generated by the planning unit.
  • the inner profile of the virtual fitting groove 301d is set to an outer profile substantially corresponding to the outer profile of the coupling portion of the virtual abutment 100k.
  • a curable resin may be filled and cured between the outer surface of the coupling part 13 made in real form and the inner surface of the mating groove to be formed so as to be spaced apart in correspondence with a predetermined gap gap so that the gap is corrected.
  • the artificial crown is finally manufactured in response to the design information 300d of the artificial crown (s40).
  • the design information 300d of the artificial crown is manufactured substantially corresponding to the real artificial crown and has the same size and shape.
  • the virtual fitting groove 301d substantially corresponds to the real fitting groove and has the same size and shape.
  • the real artificial crown fitting groove manufactured in response to the design information 300d of the artificial crown is manufactured with an inner profile substantially corresponding to the outer surface profile of the real digital abutment coupling part 13. Therefore, when the final dental restoration is installed, the degree of conformity with the digital abutment is remarkably improved, so that the mastication sensitivity of the subject to be treated can be improved.
  • a virtual abutment that corresponds accurately is extracted from the digital library using a three-dimensional working image in which a plurality of types of digital abutments provided as fine sizes are placed in the oral cavity.
  • the present invention can be applied in the manufacturing industry of dental restoration products.

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Abstract

In order to improve the convenience of procedures and scan recognition rates, a method for manufacturing a dental restorative material using a digital abutment is provided in the present invention, the method including: a first step in which a target dental arch having a digital abutment inserted therein is scanned through an intraoral scanner, a unique identification marking for scan image processing recognition being formed on an upper part of the digital abutment; a second step in which the digital abutment, scanned through the intraoral scanner, and surface information about the target dental arch are acquired by being converted into three-dimensional digital data through scan image processing, and a three-dimensional work image that includes surface information about the digital abutment converted to three-dimensional digital data is generated; a third step in which a virtual abutment extracted from a digital library in correspondence to the unique identification marking of the digital abutment is virtually arrayed and replaced in the three-dimensional work image, and design information is generated of an artificial crown in which a virtual matching groove corresponding to the outer profile of the virtual abutment is set; and a fourth step in which the artificial crown is finally manufactured to correspond to the design information.

Description

디지털 어버트먼트 및 이를 이용한 치아수복물 제조방법Digital abutment and method for manufacturing dental restoration using the same
본 발명은 디지털 어버트먼트 및 이를 이용한 치아수복물 제조방법에 관한 것으로, 보다 상세하게는 시술편의성 및 스캔인식률이 개선되는 디지털 어버트먼트 및 이를 이용한 치아수복물 제조방법에 관한 것이다.The present invention relates to a digital abutment and a method of manufacturing a dental restoration using the same, and more particularly, to a digital abutment that improves procedure convenience and scan recognition rate, and a method of manufacturing a dental restoration using the same.
일반적으로, 틀니 및 보철을 포함하는 치아수복물은 결손된 치아를 대체하여 외형 및 기능을 인공적으로 회복시켜주는 구강 내 인공치주조직을 의미한다.In general, dental restorations including dentures and prostheses refer to artificial periodontal tissue in the oral cavity that artificially restores appearance and function by replacing a missing tooth.
상세히, 자연치아가 상실된 상태로 방치될 경우 결손된 치아의 인접치아 및 대합치아에 치열의 뒤틀림이 발생하여 안면형상의 변형이 초래되며, 저작기능이 저하되어 일상생활에 불편함이 가중된다. 더욱이, 자연치아의 상실 상태가 장기간 지속되는 경우 결손된 치아를 둘러싸고 있던 치조골이 체내로 흡수되어 인공치주조직의 설치가 어려워지는 문제점이 있었다. 이때, 상기 치아수복물은 구강 내부에 설치되어 저작기능을 회복시키고 치주조직의 변형을 방지할 수 있으며, 결손된 치아의 개수에 따라 부분/완전틀니, 부분/완전보철로 구분될 수 있다.In detail, if the natural teeth are left in a lost state, distortion of the teeth occurs in the adjacent teeth and the opposing teeth of the missing teeth, resulting in deformation of the facial shape, deterioration of the mastication function, and increased discomfort in daily life. Moreover, when the loss of natural teeth persists for a long time, the alveolar bone surrounding the missing tooth is absorbed into the body, making it difficult to install artificial periodontal tissue. At this time, the dental restoration is installed inside the oral cavity to restore mastication function and prevent the periodontal tissue from being deformed, and may be divided into partial/complete dentures and partial/complete prostheses according to the number of missing teeth.
한편, 상기 틀니는 내면측 형합홈에 치과용 접착제가 도포되어 잇몸의 표면에 접착되어 설치되며, 상기 보철은 치조골에 식립된 픽스츄어를 통해 설치될 수 있다. 이때, 상기 틀니는 잇몸의 외면에 지지됨에 따라 잇몸의 변형이나 다량의 이물감을 유발하므로 최근에는 치조골을 이용하여 지지되는 보철의 사용량이 증가되는 추세이다. On the other hand, the denture is installed by being adhered to the surface of the gum by applying a dental adhesive to the inner joint groove, and the prosthesis may be installed through a fixture placed in the alveolar bone. At this time, since the dentures are supported on the outer surface of the gums, they cause deformation of the gums or a large amount of foreign body sensation.
상세히, 상기 잇몸에는 상기 보철을 지지할 수 있는 복수개의 픽스츄어가 치열궁을 따라 기설정된 간격으로 식립되며, 상단부에 어버트먼트가 결합된다. 그리고, 상기 보철에는 상기 어버트먼트의 각 상단부와 대응되는 위치에 상기 어버트먼트의 상단부와 고정되는 체결부가 형성된다. In detail, a plurality of fixtures capable of supporting the prosthesis are placed on the gum at predetermined intervals along the dental arch, and an abutment is coupled to the upper end. In addition, the prosthesis has a fastening portion fixed to the upper end of the abutment at a position corresponding to each upper end of the abutment.
그리고, 종래의 어버트먼트는 상기 픽스츄어의 상단부에 결합되는 결합돌기와, 상기 결합돌기의 상측에 구비되어 잇몸의 연조직 내측에 구비되는 마진부와, 상기 마진부의 상측에 구비되어 상기 체결부에 결합되는 결합부를 포함한다.And, the conventional abutment has a coupling protrusion coupled to the upper end of the fixture, a margin portion provided on the upper side of the coupling protrusion and provided inside the soft tissue of the gum, and a margin portion provided on the upper side of the margin portion and coupled to the fastening portion It includes a coupling portion.
이때, 상기 체결부는 상기 어버트먼트의 각 위치에 대응되어 수직방향으로 관통배열되는 지지실린더로 구비되거나, 상기 어버트먼트의 상단부 프로파일과 대응하여 수직방향으로 함몰된 체결홈으로 형성될 수 있다. 즉, 상기 체결부에 상기 어버트먼트의 결합부가 실질적으로 내삽되어 고정수단에 의해 고정됨에 따라 상기 보철이 상기 구강 내부에 설치될 수 있다.In this case, the fastening part may be provided as a support cylinder that is arranged vertically in correspondence with each position of the abutment, or may be formed as a fastening groove recessed in a vertical direction corresponding to an upper end profile of the abutment. That is, as the coupling part of the abutment is substantially inserted into the fastening part and fixed by a fixing means, the prosthesis may be installed inside the oral cavity.
한편, 도 1은 종래의 어버트먼트를 나타낸 예시도이다.Meanwhile, FIG. 1 is an exemplary view showing a conventional abutment.
도 1을 참조하면, 종래의 어버트먼트는 피시술자의 잇몸 및 픽스츄어의 크기 및 모양에 대응하여 다양한 사이즈 및 형태로 구비되며, 각 어버트먼트의 종류마다 고유한 모델 넘버가 부여되었다. 이때, 종래에는 각 상기 어버트먼트의 측면부에 상기 모델 넘버가 레이저 각인 등의 방법으로 표시되었다.Referring to FIG. 1, a conventional abutment is provided in various sizes and shapes corresponding to the size and shape of a person's gums and fixtures, and a unique model number is assigned to each type of abutment. At this time, conventionally, the model number was displayed on the side surface of each abutment by a method such as laser engraving.
상세히, 종래의 어버트먼트는 상기 픽스츄어의 직경에 대응하여 다양한 직경(diameter)으로 설정되고, 상기 보철의 높이에 대응되어 상기 결합부의 높이, 즉 포스트(post)가 다양한 높이로 설정되었다. 또한, 피시술자의 잇몸 높이에 대응되어 상기 마진부의 높이, 즉 커프(cuff)가 다양한 높이로 설정되었다. In detail, the conventional abutment is set to various diameters corresponding to the diameter of the fixture, and the height of the coupling portion, that is, a post, is set to various heights corresponding to the height of the prosthesis. In addition, the height of the margin portion, that is, a cuff, was set to various heights corresponding to the height of the gum of the person to be treated.
그러나, 종래의 어버트먼트는 피시술자의 구강 내부에 설치시 구강의 연조직에 의해 상기 모델 넘버에 대해 표시된 부분이 매몰되어 육안으로 상기 어버트먼트의 종류를 식별하기 어려운 문제점이 있었다.However, the conventional abutment has a problem in that it is difficult to identify the type of the abutment with the naked eye because the portion indicated for the model number is buried by the soft tissue of the oral cavity when it is installed inside the oral cavity of the person to be treated.
더욱이, 다양한 사이즈 및 형태로 구비되는 상기 어버트먼트는 상호간 상이간 사이즈 및 형태로 구비되더라도 수 밀리미터 단위의 작은 크기로 제조되므로 육안 식별에 의한 구별이 실질적으로 용이하지 못한 문제점이 있었다.Moreover, even though the abutments provided in various sizes and shapes are manufactured in a small size of several millimeters even if they are provided in different sizes and shapes, there is a problem that it is not practically easy to distinguish by visual identification.
특히, 종래의 어버트먼트의 마진부가 잇몸의 연조직 내측으로 삽입되면 상기 마진부가 잇몸의 외부로 노출되지 않으므로 상기 커프(cuff)가 육안으로 식별되지 못하여 어버트먼트의 종류를 확인하기 어려운 문제점이 있었다.In particular, when the margin of the conventional abutment is inserted into the soft tissue of the gum, the margin is not exposed to the outside of the gum, so the cuff cannot be visually identified, making it difficult to confirm the type of the abutment. .
이에 따라, 시술자의 단순 실수로 인해, 구강 내에 설치된 어버트먼트와 대응되지 않는 보철이 제조되어 피시술자의 구강에 설치되는 심각한 문제점이 있었다. 이로 인해, 상기 결합부와 상기 체결부 간의 형합도가 저하됨에 따라 구강 내부에 설치되는 최종 치아수복물의 설치정밀성이 저하되는 문제점이 있었다.Accordingly, due to a simple mistake of the operator, there is a serious problem that a prosthesis that does not correspond to the abutment installed in the oral cavity is manufactured and is installed in the oral cavity of the operator. For this reason, there is a problem that the installation precision of the final dental restoration installed in the oral cavity decreases as the degree of fit between the coupling portion and the fastening portion decreases.
상기와 같은 문제점을 해결하기 위하여, 본 발명은 시술편의성 및 스캔인식률이 개선되는 디지털 어버트먼트 및 이를 이용한 치아수복물 제조방법을 제공하는 것을 해결과제로 한다.In order to solve the above problems, the present invention has as a solution to provide a digital abutment with improved procedure convenience and scan recognition rate, and a method of manufacturing a dental restoration using the same.
상기의 과제를 해결하기 위하여, 본 발명은 상부에 스캔 화상처리 인식을 위한 고유식별표식이 형성된 디지털 어버트먼트가 식립된 대상악궁이 구강스캐너를 통해 스캐닝되는 제1단계; 상기 구강스캐너를 통해 스캐닝된 상기 디지털 어버트먼트 및 상기 대상악궁의 표면정보가 스캔 화상처리를 통해 3차원 디지털데이터로 변환되어 획득되되, 3차원 디지털데이터화된 상기 디지털 어버트먼트에 대한 표면정보를 포함하는 3차원 작업이미지가 생성되는 제2단계; 상기 디지털 어버트먼트의 고유식별표식에 대응하여 디지털라이브러리로부터 추출된 가상 어버트먼트가 상기 3차원 작업이미지에 가상 배치 및 대체되고, 상기 가상 어버트먼트의 외면 프로파일에 대응하는 가상 형합홈이 설정된 인공치관의 설계정보가 생성되는 제3단계; 및 상기 설계정보에 대응하여 인공치관이 최종 제조되는 제4단계를 포함하는 디지털 어버트먼트를 이용한 치아수복물 제조방법을 제공한다. In order to solve the above problems, the present invention provides a first step of scanning a target arch in which a digital abutment is placed on which a unique identification mark is formed for recognition of a scan image processing through an oral scanner; The digital abutment scanned through the oral scanner and the surface information of the target arch are converted into 3D digital data through scan image processing and obtained, and surface information on the digital abutment converted into 3D digital data is obtained. A second step of generating a three-dimensional work image including; In response to the unique identification mark of the digital abutment, the virtual abutment extracted from the digital library is virtually arranged and replaced in the 3D work image, and a virtual mating groove corresponding to the outer profile of the virtual abutment is set. A third step of generating design information of an artificial crown; And it provides a method for manufacturing a dental restoration using a digital abutment including a fourth step in which an artificial crown is finally manufactured in response to the design information.
또한, 본 발명은 스캔 화상처리를 통해 3차원 디지털데이터화되어 3차원 작업이미지에 가상 배치되며 디지털라이브러리에서 추출되는 가상 어버트먼트에 대응되는 인공치관의 설계정보 생성에 사용되는 디지털 어버트먼트에 있어서, 치조골에 식립된 픽스츄어의 상단부 내부면에 형성된 헥사홈에 형합되도록 외면에 헥사돌기가 형성되며, 내부에 상기 픽스츄어와의 체결을 매개하는 체결나사가 삽입되도록 관통공이 관통 형성되는 체결돌기; 상기 체결돌기의 상측에 일체로 구비되되, 잇몸의 연조직 내측으로 배치되도록 상기 픽스츄어가 식립된 잇몸의 주변부 형상에 대응하는 외면 프로파일로 형성되는 마진부; 상기 마진부의 상측에 일체로 구비되되, 피시술자의 구강에 설치되는 인공치관의 하부에 형성된 형합홈에 형합되도록 상기 형합홈의 내면 프로파일에 실질적으로 대응되는 외면 프로파일로 구비되며, 상기 관통공과 연통되되 상기 체결나사의 헤드부가 걸림되는 단턱부가 형성된 연통공이 형성되는 결합부; 및 상기 디지털라이브러리에 저장된 상기 가상 어버트먼트와의 개별 매칭을 위해 상기 결합부의 상부에 시각적으로 인식되도록 표시되어 가시기준지표로서 제공되는 고유식별표식을 포함하는 디지털 어버트먼트를 제공한다. In addition, the present invention relates to a digital abutment used for generating design information of an artificial crown corresponding to a virtual abutment extracted from a digital library that is converted into 3D digital data through scan image processing and is virtually placed in a 3D working image. , A fastening protrusion through which a through hole is formed so that a hexa protrusion is formed on the outer surface so as to fit into a hexa groove formed on an inner surface of the upper end of the fixture implanted in the alveolar bone, and a fastening screw that mediates the fastening with the fixture is inserted therein; A margin portion integrally provided on the upper side of the fastening protrusion and formed in an outer profile corresponding to the shape of the peripheral portion of the gum in which the fixture is placed so as to be disposed inside the soft tissue of the gum; It is provided integrally on the upper side of the margin part, and is provided with an outer profile substantially corresponding to the inner profile of the fitting groove so as to fit into the fitting groove formed in the lower portion of the artificial crown installed in the oral cavity of the patient, and communicated with the through hole, wherein the A coupling portion having a communication hole formed with a stepped portion through which the head portion of the fastening screw is engaged; And it provides a digital abutment including a unique identification mark that is displayed to be visually recognized on the upper portion of the coupling for individual matching with the virtual abutment stored in the digital library and provided as a visible reference indicator.
상기의 해결 수단을 통하여, 본 발명은 다음과 같은 효과를 제공한다.Through the above solution means, the present invention provides the following effects.
첫째, 미세한 크기로서 제공되는 복수개 타입의 디지털 어버트먼트가 구강에 식립된 상태의 3차원 작업이미지를 사용하여 디지털라이브러리로부터 정확히 대응되는 가상 어버트먼트의 추출 과정에서 디지털 어버트먼트의 사이즈 및 형태에 대응하는 고유식별표식의 시각적 인식을 통해 가상 어버트먼트에 형합되는 정확한 인공치관의 설계가 가능하므로 시술자의 혼선이 미연에 방지될 수 있다.First, the size and shape of a digital abutment in the process of extracting a virtual abutment that corresponds accurately from a digital library using a three-dimensional working image of a state in which a plurality of types of digital abutments provided as fine sizes are placed in the oral cavity. Since it is possible to design an accurate artificial crown that matches the virtual abutment through visual recognition of the unique identification mark corresponding to, confusion between the operator can be prevented.
둘째, 디지털 어버트먼트의 마진부가 잇몸의 연조직 내측으로 삽입된 이후에도 결합부 상부에 디지털 어버트먼트의 사이즈 및 형태에 대응하여 요홈의 형태로 고유식별표식이 형성되어 육안 식별이 용이하므로 시술자의 실수로 인한 인공치관의 오식립이 예방되어 시술편의성이 현저히 개선될 수 있다. Second, even after the margin of the digital abutment is inserted into the soft tissue of the gums, a unique identification mark is formed in the form of a groove in the upper part of the joint in response to the size and shape of the digital abutment, making it easy to identify with the naked eye. The artificial crown due to incorrect placement can be prevented and the convenience of the procedure can be remarkably improved.
셋째, 스캐닝된 상기 결합부의 인식저하표면에 형성된 요홈 형태의 고유식별표식에 의해 스캔인식률이 증강됨에 따라 실물의 디지털 어버트먼트 및 그에 대응하여 변환된 3차원 디지털데이터 간의 미세한 오차도 실질적으로 제거되므로 정확한 3차원 작업이미지의 획득이 가능하다. Third, as the scan recognition rate is increased by the unique identification mark in the form of a groove formed on the lower recognition surface of the scanned coupling portion, a minute error between the real digital abutment and the correspondingly converted 3D digital data is substantially removed. It is possible to acquire an accurate three-dimensional work image.
넷째, 상기 고유식별표식에 대응하여 디지털라이브러리로부터 자동 추출된 가상 어버트먼트가 상기 3차원 작업이미지에 가상 배치 및 대체되므로 상기 가상 어버트먼트의 외면 프로파일에 대응하는 정밀한 인공치관의 설계정보 생성이 가능하여 이를 통해 최종 제조되는 치아수복물의 정밀도가 현저히 개선될 수 있다. Fourth, since the virtual abutment automatically extracted from the digital library in response to the unique identification mark is virtually placed and replaced in the 3D working image, it is possible to generate precise artificial crown design information corresponding to the outer profile of the virtual abutment. It is possible, through this, the precision of the final manufactured dental restoration can be significantly improved.
다섯째, 상기 결합부의 상부에 요홈 형태로 고유식별표식이 형성되어 상기 결합부의 외면 프로파일에 대응되는 인공치관의 형합홈 내면 프로파일과의 형합시 경화성수지가 충진되는 접촉면적이 최대화됨에 따라 접착력이 증가되므로 상기 인공치관이 구강에 설치시 상기 디지털 어버트먼트와의 결합력이 개선될 수 있다. Fifth, a unique identification mark is formed in the form of a groove on the upper part of the coupling part, so that when molding with the inner profile of the mating groove of the artificial crown corresponding to the outer surface profile of the coupling part, the contact area filled with the curable resin is maximized, so that the adhesion is increased. When an artificial crown is installed in the oral cavity, the bonding strength with the digital abutment may be improved.
도 1은 종래의 어버트먼트를 나타낸 예시도.1 is an exemplary view showing a conventional abutment.
도 2는 본 발명의 일실시예에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법을 나타낸 흐름도.2 is a flow chart showing a method of manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
도 3a 및 도 3b는 본 발명의 일실시예에 따른 디지털 어버트먼트를 나타낸 사시도.3A and 3B are perspective views showing a digital abutment according to an embodiment of the present invention.
도 4a 및 도 4b는 본 발명의 일실시예의 제1변형예에 따른 디지털 어버트먼트를 나타낸 사시도.4A and 4B are perspective views showing a digital abutment according to a first modified example of an embodiment of the present invention.
도 5a 및 도 5b는 본 발명의 일실시예의 제2변형예에 따른 디지털 어버트먼트를 나타낸 사시도.5A and 5B are perspective views showing a digital abutment according to a second modified example of an embodiment of the present invention.
도 6은 본 발명의 일실시예에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법에서 3차원 작업이미지를 나타낸 예시도.6 is an exemplary view showing a three-dimensional working image in a method for manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
본 발명의 최선의 실시 형태는 첨부된 도면을 참조하여 이하에서 보다 상세히 설명될 것이다.The best embodiment of the present invention will be described in more detail below with reference to the accompanying drawings.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 디지털 어버트먼트 및 이를 이용한 치아수복물 제조방법을 상세히 설명한다.Hereinafter, a digital abutment and a method of manufacturing a dental restoration using the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 일실시예에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법을 나타낸 흐름도이고, 도 3a 및 도 3b는 본 발명의 일실시예에 따른 디지털 어버트먼트를 나타낸 사시도이다. 그리고, 도 4a 및 도 4b는 본 발명의 일실시예의 제1변형예에 따른 디지털 어버트먼트를 나타낸 사시도이고, 도 5a 및 도 5b는 본 발명의 일실시예의 제2변형예에 따른 디지털 어버트먼트를 나타낸 사시도이다. 그리고, 도 6은 본 발명의 일실시예에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법에서 3차원 작업이미지를 나타낸 예시도이다. 2 is a flowchart illustrating a method of manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention, and FIGS. 3A and 3B are perspective views illustrating a digital abutment according to an embodiment of the present invention. 4A and 4B are perspective views showing a digital abutment according to a first modified example of an embodiment of the present invention, and FIGS. 5A and 5B are a digital abutment according to a second modified example of an embodiment of the present invention. It is a perspective view showing the ment. And, Figure 6 is an exemplary view showing a three-dimensional work image in the method for manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention.
도 2 내지 도 6에서 보는 바와 같이, 본 발명의 일실시예에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법은 디지털 어버트먼트가 식립된 대상악궁 스캐닝(s10), 3차원 작업이미지 생성(s20), 인공치관의 설계정보 생성(s30), 인공치관 최종 제조(s40)의 일련의 단계를 포함한다. As shown in FIGS. 2 to 6, a method for manufacturing a dental restoration using a digital abutment according to an embodiment of the present invention includes scanning the target arch in which the digital abutment is placed (s10), and generating a three-dimensional work image (s20). ), generating design information of the artificial crown (s30), and a series of steps of final manufacturing of the artificial crown (s40).
이러한 디지털 어버트먼트를 이용한 치아수복물 제조방법은 플래닝부를 포함하는 치아수복물 제조시스템을 통해 수행됨이 바람직하다. 상세히, 구강스캐너 또는 컴퓨터단층촬영기 등의 촬상장치를 이용하여 복수개의 스캐닝이미지 및 CT 이미지와 같은 각 이미지데이터가 획득되며, 상기 플래닝부로 전송된다. 그리고, 상기 플래닝부를 통해 복수개의 상기 스캐닝이미지 및 상기 CT 이미지가 정렬, 중첩, 스왑, 보정 또는 정합되는 등의 이미지 처리과정을 통해 최종 이미지데이터인 3차원 작업이미지가 생성된다. 또한, 생성된 3차원 작업이미지를 기반으로 피시술자의 구강에 정밀하게 매칭되도록 상기 플래닝부를 통해 인공치관의 설계정보인 가상 인공치관이 생성된다. The method of manufacturing a dental restoration using such a digital abutment is preferably performed through a dental restoration manufacturing system including a planning unit. In detail, each image data such as a plurality of scanning images and CT images is acquired using an imaging device such as an oral scanner or a computed tomography machine, and transmitted to the planning unit. In addition, a 3D work image, which is final image data, is generated through an image processing process such as alignment, overlapping, swapping, correction, or matching of the plurality of scanning images and the CT images through the planning unit. In addition, a virtual artificial crown, which is design information of the artificial crown, is generated through the planning unit so as to precisely match the oral cavity of the operator based on the generated three-dimensional work image.
여기서, 상기 플래닝부에는 각 이미지데이터가 저장되는 저장부와, 각 이미지데이터를 기반으로 통합 스캐닝이미지 및 상기 3차원 작업이미지, 그리고 상기 가상 인공치관이 생성되도록 처리하는 처리부가 포함된다. 또한, 상기 처리부에 정보 및 제어명령을 입력하기 위한 입력부와, 입력된 정보 및 제어명령, 그리고 각 이미지데이터 및 상기 3차원 작업이미지, 상기 가상 인공치관 등의 생성된 데이터가 출력되는 출력부가 포함된다.Here, the planning unit includes a storage unit storing each image data, a processing unit processing the integrated scanning image and the three-dimensional work image, and the virtual artificial crown based on each image data. In addition, an input unit for inputting information and a control command to the processing unit, an input unit for outputting the input information and control commands, and generated data such as each image data, the three-dimensional work image, and the virtual artificial crown are included. .
더불어, 상기 플래닝부에는 각 이미지데이터를 전송받거나, 각 이미지데이터 또는 생성된 데이터를 외부장치로 전송할 수 있는 통신부가 더 포함될 수 있다. 즉, 상기 촬상장치를 이용하여 획득된 각 이미지데이터가 상기 통신부를 통하여 상기 플래닝부로 전송되며, 각 이미지데이터 또는 생성된 데이터가 상기 통신부를 통하여 상기 외부장치로 전송된다. 이때, 상기 외부장치는 3차원 프린터 또는 밀링기 등과 같이 상기 가상 인공치관에 대응되는 실물의 인공치관을 제조할 수 있는 제조장치로 이해함이 바람직하다.In addition, the planning unit may further include a communication unit capable of receiving each image data or transmitting each image data or generated data to an external device. That is, each image data acquired using the imaging device is transmitted to the planning unit through the communication unit, and each image data or generated data is transmitted to the external device through the communication unit. In this case, the external device is preferably understood as a manufacturing device capable of manufacturing a real artificial crown corresponding to the virtual artificial crown, such as a 3D printer or a milling machine.
한편, 본 발명에 따른 디지털 어버트먼트를 이용한 치아수복물 제조방법을 이하에서 상세히 설명한다. 먼저, 상부에 스캔 화상처리 인식을 위한 고유식별표식(14a,14b,14c)이 형성된 디지털 어버트먼트(100,200,300)가 식립된 대상악궁이 구강스캐너를 통해 스캐닝된다(s10).On the other hand, a method of manufacturing a dental restoration using a digital abutment according to the present invention will be described in detail below. First, the target arch in which the digital abutment 100, 200, and 300 having unique identification marks 14a, 14b, and 14c for scanning image processing recognition is placed on the upper part is scanned through an oral scanner (s10).
여기서, 상기 대상악궁은 상기 치아수복물이 실질적으로 설치되는 치악을 의미하며, 대합악궁은 상기 대상악궁과 교합되는 치악을 의미하는 것으로 이해함이 바람직하다. 이하에서 상기 대상악궁은 하악이고 상기 대합악궁은 상악인 것을 예로써 도시 및 설명한다.Here, it is preferable to understand that the target arch means a dental jaw in which the dental restoration is substantially installed, and the arch arch means a tooth that is occluded with the target arch. Hereinafter, the target arch is the mandible and the grand arch is the upper jaw, as an example and described.
그리고, 자연치아가 대부분 소실된 무치악 또는 부분무치악 환자의 구강 내부에 상기 자연치아를 대신하는 인공치관을 고정하기 위하여 상기 대상악궁의 치조골에 픽스츄어가 식립된다. 이때, 상기 디지털 어버트먼트(100,200,300)는 상기 픽스츄어와 상기 인공치관 간의 연결을 매개하도록 구비됨이 바람직하다. And, in order to fix the artificial crown in place of the natural tooth in the oral cavity of an edentulous or partial edentulous patient whose natural teeth are mostly lost, a fixture is placed in the alveolar bone of the target arch. At this time, the digital abutment (100, 200, 300) is preferably provided to mediate the connection between the fixture and the artificial crown.
여기서, 전치측에는 상기 픽스츄어가 실질적으로 상기 치조골에 수직으로 식립되나, 특히 하악의 구치측에 있어서 하치조신경과의 접촉 또는 가압에 의한 손상을 방지하기 위해 상기 픽스츄어가 기설정된 각도로 경사지게 식립될 수 있다. Here, the fixture is installed substantially perpendicular to the alveolar bone on the anterior tooth side, but in order to prevent damage due to contact or pressure with the inferior alveolar nerve in particular on the posterior side of the mandible, the fixture will be installed obliquely at a preset angle. I can.
그리고, 상기 픽스츄어의 상단부에는 상기 디지털 어버트먼트(100,200,300)의 체결돌기(11)가 삽입 및 체결되도록 내주홈이 함몰 형성되며, 상기 내주홈의 내주에 원주방향을 따라 헥사홈이 함몰 형성됨이 바람직하다.In addition, an inner circumferential groove is formed in the upper end of the fixture so that the fastening protrusion 11 of the digital abutment (100, 200, 300) is inserted and fastened, and a hexa groove is formed in the inner circumference of the inner circumferential groove along the circumferential direction. desirable.
한편, 본 발명의 일실시예에 따른 디지털 어버트먼트(100,200,300)는 체결돌기(11), 마진부(12), 결합부(13), 및 고유식별표식(14a,14b,14c)를 포함한다. On the other hand, the digital abutment (100, 200, 300) according to an embodiment of the present invention includes a fastening protrusion (11), a margin portion (12), a coupling portion (13), and unique identification marks (14a, 14b, 14c). .
여기서, 상기 디지털 어버트먼트(100,200,300)는 스캔 화상처리를 통해 3차원 디지털데이터화되어 3차원 작업이미지(1d)에 가상 배치되고 디지털라이브러리에서 추출되는 가상 어버트먼트(100k)에 대응되는 인공치관의 설계정보(400d) 생성에 사용되는 장치로 이해함이 바람직하다.Here, the digital abutment (100, 200, 300) is converted into 3D digital data through scan image processing, is virtually placed on the 3D work image (1d), and is extracted from the digital library, corresponding to the virtual abutment (100k). It is preferable to understand it as a device used to generate the design information 400d.
상세히, 상기 체결돌기(11)는 하측에서 상측으로 갈수록 반경이 확장되는 외면 프로파일로 형성될 수 있으며, 상하방향으로 관통된 중공형의 내면 프로파일을 갖는 형태로 구비될 수 있다. In detail, the fastening protrusion 11 may be formed as an outer profile whose radius expands from a lower side to an upper side, and may be provided in a shape having a hollow inner profile penetrating in the vertical direction.
그리고, 상기 체결돌기(11)의 외주면에는 치조골에 식립된 픽스츄어의 상단부 내주면에 형성된 상기 헥사홈에 형합되도록 상기 헥사홈에 대응하여 원주방향을 따라 헥사돌기(11a)가 형성됨이 바람직하다. In addition, it is preferable that the outer circumferential surface of the fastening protrusion 11 has a hexa protrusion 11a formed along the circumferential direction corresponding to the hexa groove so as to fit into the hexa groove formed on the inner circumferential surface of the upper end of the fixture installed in the alveolar bone.
이때, 상기 헥사돌기(11a)는 상기 체결돌기(11)의 하단부측 외면에 원주방향을 따라 기설정된 간격을 두고 절곡되는 복수개의 평탄면으로 형성될 수 있다. 여기서, 본 발명의 일실시예에서 원주방향을 따라 형성되는 상기 헥사돌기(11a)의 평탄면의 전체 형상이 육면으로 형성되는 경우를 예로써 도시하나, 이에 한정되는 것은 아니다. 따라서, 상기 헥사돌기(11a)가 상기 픽스츄어의 헥사홈에 형합되는 간단한 방법으로 상기 디지털 어버트먼트(100,200,300)의 결합방향이 용이하게 결정될 수 있으며, 상기 디지털 어버트먼트(100,200,300)가 구속되어 회전이 미연에 방지될 수 있다.In this case, the hexa protrusion 11a may be formed on an outer surface of the lower end side of the fastening protrusion 11 as a plurality of flat surfaces that are bent at predetermined intervals along the circumferential direction. Here, in an exemplary embodiment of the present invention, a case in which the entire shape of the flat surface of the hexa protrusion 11a formed along the circumferential direction is formed as a six surface is illustrated as an example, but is not limited thereto. Therefore, the coupling direction of the digital abutment (100, 200, 300) can be easily determined by a simple method in which the hexa protrusion (11a) is joined to the hexa groove of the fixture, and the digital abutment (100, 200, 300) is constrained. Rotation can be prevented in advance.
그리고, 상기 체결돌기(11)의 내부에는 상기 픽스츄어와의 체결을 매개하는 체결나사가 삽입되도록 관통공이 관통 형성됨이 바람직하다. 상세히, 상기 디지털 어버트먼트(100,200,300)의 내부에는 상하방향으로 관통공 및 후술되는 연통공(13e)이 관통 형성되되, 상기 관통공 및 상기 연통공(13e)는 상호간 연통됨이 바람직하다. 이때, 상기 관통공은 상기 체결돌기(11)의 내부에 형성되며, 상기 연통공(13e)은 상기 결합부(13)의 내부에 형성됨으로 이해함이 바람직하다.In addition, it is preferable that a through hole is formed through the inside of the fastening protrusion 11 so that a fastening screw that mediates fastening with the fixture is inserted. In detail, a through hole and a communication hole 13e to be described later are formed through the inside of the digital abutment 100,200,300 in the vertical direction, and the through hole and the communication hole 13e are preferably communicated with each other. In this case, it is preferable to understand that the through hole is formed inside the fastening protrusion 11, and the communication hole 13e is formed inside the coupling part 13.
또한, 상기 관통공 및 상기 연통공(13e) 사이의 상기 디지털 어버트먼트(100,200,300)의 내주로부터 반경방향 내측으로 일체로 연장 돌설된 단턱부가 형성됨이 바람직하다. 이때, 상기 체결나사에는 일단부에 원주방향을 따라 반경방향 외측으로 확장되는 헤드부가 형성되며, 타단부측 외주에는 나사산이 형성되어 상기 픽스츄어의 상단부 내주홈에 나사 체결될 수 있다. In addition, it is preferable that a stepped portion protruding integrally extending radially inward from an inner periphery of the digital abutment 100, 200, 300 between the through hole and the communication hole 13e is formed. At this time, the fastening screw has a head portion extending radially outwardly along the circumferential direction at one end, and a screw thread is formed at the outer circumference of the other end side to be screwed into the inner peripheral groove of the upper end of the fixture.
그리고, 상기 체결나사의 헤드부는 상기 관통공 및 상기 연통공(13e) 사이의 내주로부터 반경방향 내측으로 일체로 연장 돌설된 단턱부에 걸림 구속될 수 있다. 이때, 상기 관통공의 내경이 상기 연통공(13)의 내경보다 작게 형성됨에 따라 상기 단턱부가 형성됨으로 이해함이 바람직하다. 또한, 상기 체결나사는 상기 단턱부와 상기 픽스츄어의 상단부 내주홈을 연결할 수 있는 길이로 연장될 수 있다. Further, the head portion of the fastening screw may be locked and restrained by a stepped portion extending from an inner periphery between the through hole and the communication hole 13e in a radial direction. In this case, it is preferable to understand that the stepped portion is formed as the inner diameter of the through hole is smaller than the inner diameter of the communication hole 13. In addition, the fastening screw may extend to a length capable of connecting the stepped portion and the inner peripheral groove of the upper end of the fixture.
이를 통해, 상기 체결나사의 헤드부가 상기 단턱부에 걸림됨과 동시에 상기 체결나사의 타단부가 상기 픽스츄어의 상단부 내주홈에 체결됨에 따라 상기 디지털 어버트먼트(100,200,300) 및 상기 픽스츄어가 상호간 안정적으로 구속될 수 있다. Through this, the digital abutment (100, 200, 300) and the fixture are mutually stably as the head of the fastening screw is engaged with the stepped portion and the other end of the fastening screw is fastened to the inner circumferential groove of the upper end of the fixture. Can be restrained.
한편, 상기 마진부(12)는 상기 체결돌기(11)의 상측에 일체로 구비되되, 상기 픽스츄어가 식립된 잇몸의 주변부 형상에 대응하는 외면 프로파일로 형성되어 잇몸의 연조직 내측으로 배치됨이 바람직하다.On the other hand, the margin portion 12 is integrally provided on the upper side of the fastening protrusion 11, it is preferable that the fixture is formed in an outer profile corresponding to the shape of the periphery of the gum where the fixture is placed, and is disposed inside the soft tissue of the gum .
여기서, 상기 마진부(12)는 잇몸 내부로의 이물질의 유입을 방지하도록 상기 체결돌기(11)의 상부에 잇몸의 표면과 실질적으로 연속되는 외면 프로파일로 구비됨이 바람직하다. 이때, 상기 마진부(12)는 상기 잇몸의 연조직 내측으로 배치되도록 하측에서 상측으로 갈수록 직경이 증가되는 형태로 형성될 수 있다.Here, the margin portion 12 is preferably provided with an outer profile substantially continuous with the surface of the gum on the upper portion of the fastening protrusion 11 to prevent the inflow of foreign substances into the gum. In this case, the margin part 12 may be formed in a shape in which the diameter increases from the lower side to the upper side so as to be disposed inside the soft tissue of the gum.
그리고, 상기 마진부(12)의 상면부(12a)는 상기 결합부(13)의 외면과 단차지게 일체로 형성되되, 상기 결합부(13)의 외면으로부터 반경방향 외측으로 돌설되도록 구비되며, 상기 결합부(13)에 결합된 인공치관의 하측단을 지지할 수 있다. In addition, the upper surface portion 12a of the margin portion 12 is formed integrally with the outer surface of the coupling portion 13 and is provided to protrude radially outward from the outer surface of the coupling portion 13, and the It is possible to support the lower end of the artificial crown coupled to the coupling portion (13).
이때, 상기 마진부(12)의 상면부(12a)를 기준으로 하여 상기 디지털 어버트먼트(100,200,300)의 하부는 잇몸의 내측으로 배치되어 상기 픽스츄어와 체결되며, 상부는 잇몸의 외부로 노출됨으로 이해함이 바람직하다.At this time, the lower portion of the digital abutment (100, 200, 300) based on the upper surface portion (12a) of the margin portion (12) is disposed inside the gum to be fastened to the fixture, and the upper portion is exposed to the outside of the gum. It is desirable to understand.
여기서, 상기 마진부(12)의 상하방향 길이, 즉 커프(cuff)는 상기 디지털 어버트먼트(100,200,300)마다 상이하게 설정되어 구비될 수 있다. 이때, 피시술자의 잇몸 높이에 대응되는 커프로 구비된 상기 디지털 어버트먼트(100,200,300)가 시술자에 의해 선택되어 설치될 수 있다.Here, the length of the margin part 12 in the vertical direction, that is, a cuff may be differently set and provided for each of the digital abutments 100, 200, and 300. At this time, the digital abutment 100, 200, and 300 provided with a cuff corresponding to the height of the gum of the person to be treated may be selected and installed by the operator.
한편, 상기 결합부(13)는 상기 마진부(12)의 상측에 일체로 구비되되, 피시술자의 구강에 설치되는 인공치관의 하부에 형성된 형합홈에 형합되도록 상기 형합홈의 내면 프로파일에 실질적으로 대응되는 외면 프로파일로 구비됨이 바람직하다.On the other hand, the coupling part 13 is provided integrally on the upper side of the margin part 12, and substantially corresponds to the inner profile of the mating groove so that it fits into the mating groove formed in the lower part of the artificial crown installed in the oral cavity of the person to be treated. It is preferable to be provided with an outer profile.
여기서, 상기 결합부(13)의 측면부(13a)에는 외면을 따라 원주방향 또는 전후방향으로 함몰 연장 형성되는 정렬홈부(13b)가 형성될 수 있다. 이때, 도면에 도시되지 않았으나, 경우에 따라 상기 정렬홈부(13b)는 상기 헥사돌기(11a) 및 상기 헥사홈과 대응되도록 단면이 육각형상을 갖는 헥사면부로 구비될 수도 있다.Here, the side portion 13a of the coupling portion 13 may be formed with an alignment groove 13b that extends in the circumferential direction or in the front-rear direction along the outer surface. In this case, although not shown in the drawings, in some cases, the alignment groove 13b may be provided as a hexa surface portion having a hexagonal cross section so as to correspond to the hexa protrusion 11a and the hexa groove.
또한, 상기 결합부(13)의 측면부(13a)에는 적어도 일면 이상의 디컷부(13c)가 형성될 수 있다. 여기서, 상기 정렬홈부(13b) 및 상기 디컷부(13c)는 상기 디지털 어버트먼트(100,200,300)가 상기 픽스츄어에 결합시 식립 방향에 대한 가시기준지표를 제공하도록 형성됨이 바람직하다. 이에 따라, 상기 체결돌기(11)가 상기 픽스츄어의 상단부 내측에 삽입되어 가려지더라도 상기 정렬홈부(13b) 및 상기 디컷부(13c)를 시술자가 육안으로 확인하여 상기 디지털 어버트먼트(100,200,300)의 체결방향을 용이하게 판단할 수 있다. 따라서, 상기 디지털 어버트먼트(100,200,300)의 설치편의성이 현저히 개선될 수 있다.In addition, at least one de-cut portion 13c may be formed on the side portion 13a of the coupling portion 13. Here, the alignment groove (13b) and the de-cut (13c) is preferably formed to provide a visible reference indicator for the direction of placement when the digital abutment (100, 200, 300) is coupled to the fixture. Accordingly, even if the fastening protrusion 11 is inserted inside the upper end of the fixture and is covered, the operator visually checks the alignment groove 13b and the de-cut part 13c, and the digital abutment (100, 200, 300) The fastening direction of the can be easily determined. Accordingly, the installation convenience of the digital abutment 100, 200, and 300 can be significantly improved.
또한, 상기 결합부(13)는 상기 마진부(12)의 상부에 일체로 구비되어 상기 인공치관의 형합홈에 형합되도록 삽입된다. 이때, 상기 결합부(13)의 표면이 거칠기 가공될 수도 있다. 이를 통해, 상기 결합부(13)의 표면이 거칠기 가공되어 구강스캐닝시 스캔인식률이 증강됨과 동시에 상기 인공치관의 형합홈과 상기 결합부(13)의 외면 사이에 충진된 접착물질을 통한 결합력이 한층 개선될 수 있다. In addition, the coupling portion 13 is integrally provided on the upper portion of the margin portion 12 and is inserted into the fitting groove of the artificial crown. At this time, the surface of the coupling portion 13 may be roughened. Through this, the surface of the coupling part 13 is roughened to increase the scan recognition rate during oral scanning, and at the same time, the bonding force through the adhesive material filled between the mating groove of the artificial crown and the outer surface of the coupling part 13 is further enhanced. It can be improved.
그리고, 상기 결합부(13)에는 상기 관통공과 연통되는 상기 연통공(13e)이 형성됨이 바람직하다. 즉, 상기 연통공(13e)이 상기 관통공과 일체로 연통되되, 상기 단턱부는 상기 관통공 및 상기 연통공(13e)의 사이에 형성됨으로 이해함이 바람직하다.In addition, it is preferable that the communication hole 13e communicating with the through hole is formed in the coupling part 13. That is, it is preferable to understand that the communication hole 13e is integrally communicated with the through hole, and the stepped portion is formed between the through hole and the communication hole 13e.
한편, 도 3a 및 도 5b를 참조하면, 상기 고유식별표식(14a,14b,14c)은 상기 디지털라이브러리에 저장된 상기 가상 어버트먼트(100k)와의 개별 매칭을 위해 상기 결합부(13)의 상부에 시각적으로 인식되도록 표시되어 가시기준지표로서 제공됨이 바람직하다. 이때, 개별 매칭된다 함은 구강스캐너를 통해 스캐닝되어 3차원 디지털데이터화된 복수개 타입의 상기 디지털 어버트먼트(100,200,300)에 대한 표면정보가 상기 고유식별표식(14a,14b,14c)에 의해 개별 매칭되어 그에 대응되는 상기 가상 어버트먼트(100k)로 대체됨을 의미한다.Meanwhile, referring to FIGS. 3A and 5B, the unique identification marks 14a, 14b, and 14c are on the upper part of the coupling part 13 for individual matching with the virtual abutment 100k stored in the digital library. It is preferable that it is displayed to be visually recognized and provided as a visible reference indicator. At this time, individual matching means that the surface information for the plurality of types of digital abutments 100, 200, 300, which are scanned through an oral scanner and converted into 3D digital data, are individually matched by the unique identification marks 14a, 14b, and 14c. It means that the virtual abutment 100k corresponding thereto is replaced.
여기서, 상기 고유식별표식(14a,14b,14c)은 사이즈 및 형태별, 즉 복수개의 타입별로 부여되는 상기 디지털 어버트먼트(100,200,300)의 개별 식별을 위해 상기 결합부(13)의 상부에 선택적으로 적어도 하나 이상 형성되는 요홈으로 구비됨이 바람직하다. 또한, 상기 고유식별표식(14a,14b,14c)은 상기 디지털 어버트먼트(100,200,300)의 사이즈 및 형태별로 부여되되 가시기준지표를 제공하도록 상기 결합부(13) 상부의 인식저하표면에 형성 및 배치됨이 바람직하다.Here, the unique identification mark (14a, 14b, 14c) is selectively at least on the upper portion of the coupling part 13 for individual identification of the digital abutment (100, 200, 300) given by size and shape, that is, by a plurality of types. It is preferable to be provided with one or more grooves formed. In addition, the unique identification mark (14a, 14b, 14c) is given according to the size and shape of the digital abutment (100, 200, 300), but formed and arranged on the lower recognition surface above the coupling part 13 to provide a visible reference indicator. This is desirable.
이때, 상기 인식저하표면은 상기 결합부(13)의 매끄러운 표면 부분을 의미한다. 즉, 상기 결합부(13)의 스캐닝시 매끄러운 표면구조 또는 상기 구강스캐너의 성능 등의 이유로 인해 상기 구강스캐너에 상기 결합부(13)의 외면 프로파일이 연속적으로 인식되지 못할 우려가 있다. 이를 해결하기 위해, 상기 고유식별표식(14a,14b,14c)이 상기 결합부(13)의 인식저하표면에 형성됨이 바람직하다.In this case, the recognition lowering surface means a smooth surface portion of the coupling portion 13. That is, there is a concern that the external profile of the coupling part 13 may not be continuously recognized by the oral scanner due to reasons such as a smooth surface structure or performance of the oral scanner during scanning of the coupling part 13. In order to solve this problem, it is preferable that the unique identification marks 14a, 14b, 14c are formed on the recognition deterioration surface of the coupling portion 13.
그리고, 상기 고유식별표식(14a,14b,14c)은 상기 인식저하표면에 선택적으로 적어도 하나 이상 형성되는 요홈으로 구비됨이 바람직하다. 이때, 이하에서 본 발명에 따른 상기 고유식별표식(14a,14b,14c)이 음각 형태로 함몰 형성되는 경우를 예로써 도시 및 설명한다. 물론, 경우에 따라 상기 고유식별표식은 상기 인식저하표면로부터 연장 돌출되는 돌기부의 형태로 형성될 수도 있으며, 상기 고유식별표식이 시각적으로 인식되도록 표시된 구조라면 형상이 이에 한정되는 것은 아니다. 이때, 상술된 인공치관의 형합홈의 내면 프로파일이 상기 요홈을 포함하는 상기 결합부(13)의 외면 프로파일에 실질적으로 대응되어 형성됨 이해함이 바람직하다. In addition, the unique identification mark (14a, 14b, 14c) is preferably provided with at least one groove selectively formed on the recognition deterioration surface. Hereinafter, a case in which the unique identification marks 14a, 14b, and 14c according to the present invention are formed in an intaglio shape will be illustrated and described as an example. Of course, in some cases, the unique identification mark may be formed in the form of a protrusion extending from the recognition deterioration surface, and the shape is not limited thereto as long as the unique identification mark is displayed so that it is visually recognized. At this time, it is preferable to understand that the inner profile of the fitting groove of the artificial crown is formed to substantially correspond to the outer profile of the coupling portion 13 including the groove.
또한, 선택적으로 적어도 하나 이상 형성된다 함은 각 상기 디지털 어버트먼트의 사이즈 및 형태별로 부여된 각 상기 고유식별표식 간의 구별 기능을 제공하기 위해 상기 고유식별표식이 형성되지 않는 형태도 포괄함으로 이해함이 바람직하다.In addition, it is preferable to understand that at least one or more selectively is formed also encompasses a shape in which the unique identification mark is not formed in order to provide a function of distinguishing between each of the unique identification marks assigned to the size and shape of each digital abutment. Do.
그리고, 상기 고유식별표식(14a,14b,14c)은 상기 디지털 어버트먼트(100,200,300)의 사이즈 및 형태에 대응하여 요홈의 형태로 각각 상이하게 형성됨이 바람직하다. 여기서, 상기 요홈이 복수개로 구비되는 경우, 상기 요홈은 상호간 기설정된 간격을 두고 이격 배치됨이 바람직하다.In addition, it is preferable that the unique identification marks 14a, 14b, and 14c are formed differently in the shape of a groove corresponding to the size and shape of the digital abutment (100, 200, 300). Here, when a plurality of the grooves are provided, the grooves are preferably spaced apart from each other at a predetermined interval.
여기서, 상기 고유식별표식(14a,14b,14c)은 제1고유식별표식(14a), 제2고유식별표식(14b), 및 제3고유식별표식(14c)을 포함함이 바람직하다. 또한, 상기 디지털 어버트먼트(100,200,300)에는 사이즈 및 형태에 대응하는 상기 고유식별표식(14a,14b,14c)이 형성됨이 바람직하다. 이때, 상기 디지털 어버트먼트(100,200,300)는 제1 내지 제9 디지털 어버트먼트(100a,100b,100c,200a,200b,200c,300a,300b,300c)를 포함함이 바람직하다. 이때, 본 발명의 일실시예 및 그의 제1변형예 및 제2변형예에서 고유식별표식(14a,14b,14c)을 제외한 기본적인 구성은 동일하며 동일한 구성에 대해서는 동일한 도면번호로 도시한다. Here, the unique identification mark (14a, 14b, 14c) preferably includes a first unique identification mark (14a), a second unique identification mark (14b), and a third unique identification mark (14c). In addition, the digital abutment (100, 200, 300) is preferably formed with the unique identification mark (14a, 14b, 14c) corresponding to the size and shape. In this case, the digital abutment (100, 200, 300) preferably includes the first to ninth digital abutment (100a, 100b, 100c, 200a, 200b, 200c, 300a, 300b, 300c). In this case, the basic configuration except for the unique identification marks 14a, 14b, and 14c in one embodiment of the present invention and its first and second modifications are the same, and the same configurations are indicated by the same reference numbers.
상세히, 도 3a 및 도 3b를 참조하면, 상기 제1고유식별표식(14a)은 상기 디지털 어버트먼트(100)의 사이즈 및 형태에 대응되어 선택적으로 적어도 하나 이상 형성되되, 상호간 상이한 개수로 형성됨이 바람직하다. 예컨대, 제1디지털 어버트먼트(100a)에 제1고유식별표식(14a)이 1개소 형성되는 경우, 상기 제1디지털 어버트먼트(100a)와 상이한 사이즈 및 형태로 구비된 제2디지털 어버트먼트(100b)에는 제1고유식별표식(14a)이 2개소 형성될 수 있다.In detail, referring to FIGS. 3A and 3B, the first unique identification mark 14a is selectively formed at least one or more corresponding to the size and shape of the digital abutment 100, but formed in different numbers. desirable. For example, when one first unique identification mark 14a is formed on the first digital abutment 100a, a second digital abutment provided in a size and shape different from that of the first digital abutment 100a Two first unique identification marks 14a may be formed on the ment 100b.
여기서, 본 발명의 일실시예에 따른 상기 제1고유식별표식(14a)은 상기 연통공(13e)을 감싸며 상기 결합부(13)의 상면부(13d)에 반원 형태의 음각으로 함몰 형성됨이 바람직하다. Here, it is preferable that the first unique identification mark (14a) according to an embodiment of the present invention surrounds the communication hole (13e) and is recessed in a semicircle shape in the upper surface (13d) of the coupling part (13). Do.
그리고, 도 4a 및 도 4b를 참조하면, 상기 제2고유식별표식(14b)은 상기 디지털 어버트먼트(200)의 사이즈 및 형태에 대응되어 선택적으로 적어도 하나 이상 형성되되, 상호간 상이한 개수로 형성됨이 바람직하다.And, referring to Figures 4a and 4b, the second unique identification mark (14b) is selectively formed at least one or more corresponding to the size and shape of the digital abutment 200, it is formed in a different number. desirable.
여기서, 본 발명의 일실시예의 제1변형예에 따른 상기 제2고유식별표식(14b)은 상기 결합부(13)의 상면부(13d)에 원 형태의 단면으로 함몰 형성됨이 바람직하다. 또한, 상기 제2고유식별표식(14b)은 상기 결합부(13)의 상면부(13d)의 외곽을 따라 형성될 수 있으며, 또는 경우에 따라 상기 결합부(13)의 상면부(13d)에 상호간 직렬형으로 배치될 수도 있다.Here, it is preferable that the second unique identification mark 14b according to the first modification of the embodiment of the present invention is formed in a circular cross section in the upper surface 13d of the coupling part 13. In addition, the second unique identification mark (14b) may be formed along the outer periphery of the upper surface portion (13d) of the coupling portion (13), or in some cases, on the upper surface portion (13d) of the coupling portion (13). They may be arranged in series with each other.
그리고, 도 5a 및 도 5b를 참조하면, 상기 제3고유식별표식(14c)은 상기 디지털 어버트먼트(300)의 사이즈 및 형태에 대응되어 선택적으로 적어도 하나 이상 형성되되, 상호간 상이한 개수로 형성됨이 바람직하다.And, referring to Figures 5a and 5b, the third unique identification mark (14c) is selectively formed at least one or more corresponding to the size and shape of the digital abutment 300, it is formed in a different number. desirable.
여기서, 본 발명의 일실시예의 제2변형예에 따른 상기 제3고유식별표식(14c)은 상기 결합부(13)의 측면부(13a) 둘레를 따라 음각 형태로 함몰 형성됨이 바람직하다. 상세히, 상기 제3고유식별표식(14c)는 상기 정렬홈부(13b) 및 상기 디컷부(13c)를 포함하는 상기 결합부(13)의 측면부(13a) 상부측의 외면을 따라 함몰 형성될 수 있다. 따라서, 상기 마진부(12)가 잇몸의 연조직 내측으로 삽입된 이후에도 상기 결합부(13) 상부에 육안 식별이 용이한 고유식별표식(14a,14b,14c)이 상기 디지털 어버트먼트(100,200,300)의 사이즈 및 형태에 대응하여 요홈의 형태로 형성된다. 이를 통해, 시술자의 실수로 인한 인공치관의 오(誤)식립이 예방되어 시술편의성이 현저히 개선될 수 있다.Here, it is preferable that the third unique identification mark 14c according to the second modification of the embodiment of the present invention is recessed in an intaglio shape along the circumference of the side portion 13a of the coupling portion 13. In detail, the third unique identification mark 14c may be recessed along the outer surface of the upper side of the side portion 13a of the coupling portion 13 including the alignment groove 13b and the decut portion 13c. . Therefore, even after the margin portion 12 is inserted into the soft tissue of the gum, a unique identification mark (14a, 14b, 14c) that can be easily visually identified on the upper portion of the coupling portion 13 is shown in the digital abutment (100, 200, 300). It is formed in the shape of a groove corresponding to the size and shape. Through this, incorrect placement of the artificial crown caused by the operator's error can be prevented, and the convenience of the procedure can be significantly improved.
더욱이, 상기 결합부(13)의 상부에 요홈 형태로 상기 고유식별표식(14a,14b,14c)이 형성된다. 따라서, 상기 결합부(13)의 외면 프로파일에 대응되는 인공치관의 형합홈 내면 프로파일과의 형합시 경화성수지가 충진되는 접촉면적이 최대화된다. 이를 통해, 상기 결합부(13) 및 상기 형합홈 간의 접착력이 증가되므로 인공치관이 구강에 설치시 상기 디지털 어버트먼트(100,200,300)와의 결합력이 개선될 수 있다. Moreover, the unique identification marks 14a, 14b, 14c are formed in the shape of a groove on the upper part of the coupling part 13. Accordingly, the contact area to be filled with the curable resin is maximized when it is molded with the inner profile of the fitting groove of the artificial crown corresponding to the outer profile of the coupling part 13. Through this, since the adhesive force between the coupling portion 13 and the fitting groove is increased, when an artificial crown is installed in the oral cavity, the coupling force with the digital abutment 100, 200, 300 may be improved.
한편, 상기 디지털 어버트먼트(100,200,300)가 식립된 상기 대상악궁이 상기 구강스캐너를 통해 스캐닝된다. 이어서, 상기 구강스캐너를 통해 스캐닝된 상기 디지털 어버트먼트(100,200,300) 및 상기 대상악궁의 표면정보가 상기 플래닝부에 의한 스캔 화상처리를 통해 3차원 디지털데이터로 변환되어 획득된다(s20). 그리고, 상기 플래닝부에 의해 3차원 디지털데이터화된 상기 디지털 어버트먼트(100,200,300)에 대한 표면정보를 포함하는 3차원 작업이미지(1d)가 생성된다(s20).Meanwhile, the target arch in which the digital abutment (100, 200, 300) is placed is scanned through the oral scanner. Subsequently, the digital abutment (100, 200, 300) scanned through the oral scanner and the surface information of the target arch are converted into 3D digital data through scan image processing by the planning unit and obtained (s20). In addition, a three-dimensional work image 1d including surface information on the digital abutment 100, 200, and 300 converted into three-dimensional digital data by the planning unit is generated (s20).
여기서, 상기 3차원 작업이미지(1d)는 대상악궁의 표면정보(2d) 및 픽스츄어의 식립정보(7d)를 포함하는 3차원 디지털데이터로 이해함이 바람직하다. 이때, 상기 대상악궁의 표면정보(2d)는 피시술자의 실물 대상악궁에 실질적으로 대응하여 동일한 크기 및 형상을 갖는다. 또한, 상기 픽스츄어의 식립정보(7d)는 실물의 픽스츄어에 실질적으로 대응하여 동일한 크기 및 형상을 갖는다.Here, the three-dimensional working image (1d) is preferably understood as three-dimensional digital data including the surface information (2d) of the target arch and the placement information (7d) of the fixture. At this time, the surface information (2d) of the target arch has the same size and shape substantially corresponding to the actual target arch of the person to be treated. In addition, the mounting information 7d of the fixture has the same size and shape corresponding substantially to the actual fixture.
그리고, 상기 표면정보는 적어도 셋 이상의 상기 결합부(13) 표면의 절곡진 부분이 상기 구강스캐너에 의해 인식된 후 상기 플래닝부에 의해 스캔 화상처리됨에 따라 3차원 디지털테이터화됨이 바람직하다. 이때, 상기 결합부(13) 표면의 절곡진 부분은 상기 고유식별표식(14a,14b,14c), 상기 정렬홈부(13b) 및 상기 디컷부(13c), 그리고 상기 마진부(12)의 상면부(12a)를 포함함으로 이해함이 바람직하다. 즉, 상기 고유식별표식(14a,14b,14c), 상기 정렬홈부(13b) 및 상기 디컷부(13c), 그리고 상기 마진부(12)의 상면부(12a)에 의해 결합부(13)의 표면에 스캔 인식이 용이한 모서리, 꼭짓점이 형성됨에 따라 상기 인식저하표면이 최소화된다.In addition, it is preferable that the surface information is converted into 3D digital data as at least three bent portions of the surfaces of the coupling portions 13 are recognized by the oral scanner and then scanned by the planning unit. At this time, the bent portion of the surface of the coupling portion 13 is the unique identification mark (14a, 14b, 14c), the alignment groove (13b) and the de-cut portion (13c), and the upper surface of the margin portion (12) It is desirable to understand that it includes (12a). That is, the surface of the coupling portion 13 by the unique identification mark (14a, 14b, 14c), the alignment groove portion (13b) and the decut portion (13c), and the upper surface portion (12a) of the margin portion (12) As corners and vertices that can be easily scanned are formed, the recognition deterioration surface is minimized.
상세히, 상기 구강스캐너를 통해 상기 픽스츄어 및 상기 디지털 어버트먼트(100,200,300)가 식립된 상기 대상악궁이 스캐닝된다. 즉, 상기 구강스캐너는 잇몸의 표면으로 노출된 상기 결합부(13)와, 피시술자의 대상악궁 전체를 스캐닝함이 바람직하다. 이를 통해, 상기 고유식별표식(14a,14b,14c), 상기 정렬홈부(13b) 및 상기 디컷부(13c), 그리고 상기 마진부(12)의 상면부(12a)가 3차원 디지털데이터인 식별기준부(k1,k2,k3)로 획득될 수 있다. 이때, 상기 디지털 어버트먼트(100,200,300)의 결합부(13) 표면정보에 상기 식별기준부(k1,k2,k3)가 포함됨으로 이해함이 바람직하다.In detail, the target arch in which the fixture and the digital abutment (100, 200, 300) are placed is scanned through the oral scanner. That is, it is preferable that the oral scanner scans the entire target arch of the person to be treated and the coupling part 13 exposed to the surface of the gum. Through this, the unique identification mark (14a, 14b, 14c), the alignment groove (13b), the de-cut part (13c), and the upper surface (12a) of the margin part (12) is the 3D digital data identification criteria It can be obtained as negative (k1, k2, k3). At this time, it is preferable to understand that the identification reference portions k1, k2, and k3 are included in the surface information of the coupling portion 13 of the digital abutment 100, 200, and 300.
또한, 상기 식별기준부(k1,k2,k3)는 상기 구강스캐너를 통해 스캐닝되어 상기 플래닝부의 처리부를 통해 스캔 화상처리됨에 따라 가상의 3차원 디지털데이터로 변환됨이 바람직하다. 여기서, 상기 식별기준부(k1,k2,k3)는 제1식별기준부(k1), 제2식별기준부(k2), 제3식별기준부(k3)를 포함한다. 이때, 상기 제1식별기준부(k1)는 실물의 상기 고유식별표식(14a,14b,14c)에 대응하는 가상의 3차원 디지털데이터를 의미한다. 그리고, 상기 제2식별기준부(k2)는 실물의 상기 정렬홈부(13b)에 대응하는 가상의 3차원 디지털데이터를 의미한다. 또한, 상기 제3식별기준부(k3)는 실물의 상기 마진부(12)의 상면부(12a) 테두리에 대응하는 가상의 3차원 디지털데이터를 의미한다. 더욱이, 상기 식별기준부는 실물의 상기 디컷부(13c) 모서리에 대응하는 가상의 3차원 디지털데이터를 포함할 수 있다.In addition, it is preferable that the identification reference units k1, k2, and k3 are scanned through the oral scanner and converted into virtual 3D digital data as scanned image processing is performed by the processing unit of the planning unit. Here, the identification reference unit (k1, k2, k3) includes a first identification reference unit (k1), a second identification reference unit (k2), and a third identification reference unit (k3). In this case, the first identification reference unit k1 means virtual 3D digital data corresponding to the unique identification marks 14a, 14b, and 14c of the real object. In addition, the second identification reference unit k2 means virtual 3D digital data corresponding to the alignment groove 13b of the real object. In addition, the third identification reference part k3 means virtual 3D digital data corresponding to the edge of the upper surface part 12a of the margin part 12 of the real object. Moreover, the identification reference unit may include virtual 3D digital data corresponding to the edge of the decut unit 13c of the real object.
여기서, 상기 결합부(13)의 상부에 스캔 화상처리 인식을 위한 상기 고유식별표식(14a,14b,14c)이 형성되어 상기 구강스캐너를 통한 스캐닝시 상기 고유식별표식(14a,14b,14c)이 인식될 수 있다. 더욱이, 상기 구강스캐너를 통한 스캐닝시 상기 결합부(13)의 측면부(13a)에 형성된 상기 정렬홈부(13b) 및 상기 디컷부(13c), 그리고 상기 마진부(12)의 상면부(12a) 모서리가 인식될 수 있다. Here, the unique identification mark (14a, 14b, 14c) for scanning image processing recognition is formed on the upper part of the coupling part 13, and the unique identification mark (14a, 14b, 14c) is formed when scanning through the oral scanner. Can be recognized. Moreover, the alignment groove (13b) and the de-cut (13c) formed in the side portion (13a) of the coupling portion (13) when scanning through the oral scanner, and the edge of the upper surface portion (12a) of the margin portion (12) Can be recognized.
이에 따라, 상기 구강스캐너를 통한 상기 결합부(13)의 스캐닝시 상기 고유식별표식(14a,14b,14c)의 요홈, 상기 정렬홈부(13b) 및 상기 디컷부(13c)에 의해 형성되는 표면 구조의 요홈 또는 모서리에 의해 스캔인식률이 증강된다. Accordingly, the surface structure formed by the groove of the unique identification mark (14a, 14b, 14c), the alignment groove (13b) and the decut part (13c) when scanning the coupling part 13 through the oral scanner The scan recognition rate is enhanced by the grooves or corners of.
따라서, 상기 구강스캐너를 통해 스캐닝된 상기 결합부(13)의 인식저하표면에 형성된 요홈 형태의 상기 고유식별표식(14a,14b,14c)에 의해 스캔인식률이 증강된다. 이를 통해, 실물의 디지털 어버트먼트(100.200,300) 및 그에 대응하여 변환된 3차원 디지털데이터 간의 미세한 오차도 실질적으로 제거되어 정확한 상기 3차원 작업이미지(1d)의 획득이 가능하다.Accordingly, the scan recognition rate is enhanced by the unique identification marks 14a, 14b, and 14c in the form of grooves formed on the recognition-degrading surface of the coupling portion 13 scanned through the oral scanner. Through this, minute errors between the real digital abutments 100.200 and 300 and the correspondingly converted 3D digital data are substantially removed, and thus the accurate 3D work image 1d can be obtained.
한편, 상기 디지털 어버트먼트(100,200,300)의 고유식별표식(14a,14b,14c)에 대응하여 디지털라이브러리로부터 자동 추출된 가상 어버트먼트(100k)가 상기 플래닝부에 의해 상기 3차원 작업이미지(1d)에 자동으로 가상 배치 및 대체된다(s30). 또한, 상기 가상 어버트먼트(100k)의 외면 프로파일에 대응하는 가상 형합홈(301d)이 설정된 인공치관의 설계정보(300d)가 상기 플래닝부에 의해 생성된다(s30). Meanwhile, the virtual abutment 100k automatically extracted from the digital library in response to the unique identification marks 14a, 14b, 14c of the digital abutment 100, 200, 300 is transferred to the three-dimensional work image 1d by the planning unit. ) Is automatically placed and replaced in a virtual (s30). In addition, design information 300d of the artificial crown in which the virtual fitting groove 301d corresponding to the outer profile of the virtual abutment 100k is set is generated by the planning unit (s30).
여기서, 상기 가상 어버트먼트(100k)는 상기 디지털 어버트먼트(100,200,300)와 실질적으로 동일한 크기 및 형상을 갖는다. 또한, 상기 가상 어버트먼트(100k)는 실물의 디지털 어버트먼트(100,200,300)의 외형 및 구조를 동일하게 재현할 수 있는 3차원 벡터 데이터를 의미한다. 이러한 가상 어버트먼트(100k)는 다양한 규격 및 타입으로 구비되는 실물의 디지털 어버트먼트(100,200,300)에 매칭 및 형상이 대응되어 상기 디지털라이브러리에 복수개 기저장됨이 바람직하다. 더욱이, 상기 가상 어버트먼트(100k)는 실물의 디지털 어버트먼트(100,200,300)에 대한 직접적인 스캐닝이나 CAD/CAM 설계정보를 통해 획득될 수도 있다. 이때, 상기 디지털라이브러리는 다양한 규격 및 타입으로 구비되는 실물의 디지털 어버트먼트(100,200,300)에 대해 획득된 3차원 외형 정보의 데이터베이스로 이해함이 바람직하다. Here, the virtual abutment 100k has substantially the same size and shape as the digital abutment 100, 200, and 300. In addition, the virtual abutment 100k refers to 3D vector data capable of identically reproducing the appearance and structure of the real digital abutment 100, 200, and 300. It is preferable that a plurality of such virtual abutments 100k are previously stored in the digital library by matching and matching shapes to real digital abutments 100, 200, and 300 provided in various standards and types. Furthermore, the virtual abutment 100k may be obtained through direct scanning of the real digital abutment 100, 200, or 300 or through CAD/CAM design information. In this case, it is preferable to understand the digital library as a database of three-dimensional appearance information obtained for the real digital abutments 100, 200, and 300 provided in various standards and types.
그리고, 상기 가상 어버트먼트(100k)는 실물의 디지털 어버트먼트(100,200,300)의 사이즈 및 형태에 대응하여 상기 플래닝부를 통해 디지털라이브러리로부터 자동 추출될 수 있다. 물론, 상기 가상어버트먼트(100k)가 상기 플래닝부에 의해 수동으로 추출될 수도 있다. 이때, 상기 구강스캐너를 통해 상기 결합부(13)에 형성된 상기 고유식별표식(14a,14b,14c)의 개수 및 형상에 매칭되는 종류의 상기 가상 어버트먼트(100k)가 상기 플래닝부를 통해 디지털라이브러리로부터 자동 추출됨이 바람직하다.In addition, the virtual abutment 100k may be automatically extracted from the digital library through the planning unit corresponding to the size and shape of the real digital abutment 100, 200, and 300. Of course, the virtual abutment 100k may be manually extracted by the planning unit. At this time, the virtual abutment (100k) of the type matching the number and shape of the unique identification marks (14a, 14b, 14c) formed on the coupling part 13 through the oral scanner is digital library through the planning part. It is preferably automatically extracted from.
이어서, 상기 가상 어버트먼트(100k)가 상기 대상악궁의 표면정보(2d) 및 상기 픽스츄어의 식립정보(7d)를 포함하는 상기 3차원 작업이미지(1d)의 표면정보에 상기 플래닝부에 의해 가상 배치됨이 바람직하다. 즉, 상기 플래닝부에 의해 스캔 화상처리됨에 따라 변환된 상기 결합부(13)의 3차원 디지털데이터가 디지털라이브러리로부터 추출된 상기 가상 어버트먼트(100k)로 대체된다. Subsequently, the virtual abutment (100k) is applied to the surface information of the three-dimensional work image (1d) including the surface information (2d) of the target arch and the placement information (7d) of the fixture by the planning unit. It is preferred to be virtually arranged. That is, the 3D digital data of the combining unit 13 converted by scanning image processing by the planning unit is replaced with the virtual abutment 100k extracted from a digital library.
여기서, 상기 결합부(13)로부터 변환된 3차원 디지털데이터는 상기 고유식별표식(14a,14b,14c)을 포함하는 적어도 셋 이상의 상기 결합부(13) 표면의 절곡진 부분이 상기 구강스캐너 의해 인식된 후 플래닝부에 의해 스캔 화상처리된다. Here, the three-dimensional digital data converted from the coupling portion 13 is recognized by the oral scanner at least three curved portions of the surface of the coupling portion 13 including the unique identification mark (14a, 14b, 14c) Then, the scanning image is processed by the planning unit.
이에 따라, 스캔 화상처리 인식을 위한 상기 고유식별표식(14a,14b,14c)을 포함하는 적어도 셋 이상의 상기 결합부(13) 표면의 절곡진 부분이 상기 구강스캐너 의해 정확히 인식되므로 스캔인식률이 증강될 수 있다. 따라서, 상기 고유식별표식(14a,14b,14c)에 대응하여 자동 추출된 가상 어버트먼트(100k)가 상기 3차원 작업이미지(1d)에 가상 배치 및 대체된다. 이에 따라, 상기 가상 어버트먼트(100k)의 외면 프로파일에 대응하는 정밀한 인공치관의 설계정보(300d)의 생성이 가능하여 최종 제조되는 치아수복물의 정밀도가 현저히 개선될 수 있다. Accordingly, since the bent portion of the surface of the at least three or more coupling portions 13 including the unique identification marks 14a, 14b, 14c for scanning image processing recognition is accurately recognized by the oral scanner, the scan recognition rate will be enhanced. I can. Accordingly, the automatically extracted virtual abutment 100k corresponding to the unique identification marks 14a, 14b, 14c is virtually placed and replaced in the 3D working image 1d. Accordingly, it is possible to generate the precise design information 300d of the artificial crown corresponding to the outer profile of the virtual abutment 100k, and thus the precision of the final manufactured dental restoration can be significantly improved.
한편, 상기 3차원 작업이미지(1d)에는 상기 대상악궁측의 외면 프로파일에 대응되는 대상악궁의 표면정보(2d)와 상기 대상악궁에 대향되는 대합악궁측의 외면 프로파일에 대응되는 대합악궁의 표면정보가 3차원으로 이미지화되어 표시된다. On the other hand, in the three-dimensional work image (1d), the surface information of the target arch (2d) corresponding to the outer surface profile of the target arch side and the surface information of the arch arch corresponding to the outer surface profile of the arch side facing the target arch Is imaged and displayed in three dimensions.
또한, 상기 3차원 작업이미지(1d)는 상기 대상악궁 및 상기 대합악궁 간의 수직고경(occlusal vertical dimention)에 대한 정보를 포함함이 바람직하다. 여기서, 상기 수직고경은 별도로 구비되어 구강 내부에 삽입되는 결합바이트(미도시)에 의해 획득될 수 있다. In addition, it is preferable that the three-dimensional working image 1d includes information on the occlusal vertical dimention between the target arch and the arch arch. Here, the vertical height may be obtained by a coupling bite (not shown) that is separately provided and inserted into the oral cavity.
상세히, 상기 결합바이트(미도시)는 상기 대상악궁의 잇몸부 외면과 형합 대응되는 일면부 및 상기 대합악궁의 단부와 교합되는 타면부를 포함함이 바람직하다. 이때, 상기 결합바이트(미도시)는 보정된 상기 일면부 및 보정된 상기 타면부 사이 간격이 피시술자별 수직고경에 대응하는 두께로 구비됨이 바람직하다. 여기서, 피시술자별 수직고경이라 함은 피시술자가 상하악을 교합시 적합하고 편안한 상태로 교합될 수 있는 상하악 사이의 간격으로 이해함이 바람직하다. 따라서, 상기 대상악궁 및 상기 대합악궁이 상기 결합바이트(미도시)에 의해 교합된 상태에서 상기 수직고경이 고려된 각 이미지데이터를 획득할 수 있다.In detail, the coupling bite (not shown) preferably includes one surface portion corresponding to the outer surface of the gum portion of the target arch and the other surface portion occluding the end of the arch arch. In this case, the coupling bite (not shown) is preferably provided with a thickness corresponding to the vertical height of each person to be treated with an interval between the corrected one surface portion and the corrected other surface portion. Here, it is preferable to understand that the vertical height for each person to be treated is an interval between the upper and lower jaws that can be occluded in a comfortable and comfortable state for the person to be occupied. Accordingly, in a state in which the target arch and the grand arch are occluded by the joining bite (not shown), each image data considering the vertical height can be obtained.
이때, 피시술자별 수직고경으로 대응된다 함은, 상기 결합바이트의 일면부 및 타면부 사이 간격이 상기 피시술자별 수직고경에 대응되도록 기제조되는 것과, 상기 대상악궁 및 상기 대합악궁 사이에 상기 결합바이트(미도시)가 설치되되 교합압력에 의해 상기 피시술자별 수직고경에 대응되도록 보정되는 것을 포괄하는 것으로 이해함이 바람직하다. At this time, the corresponding to the vertical height of each subject means that the distance between one side and the other side of the combination bite is pre-manufactured to correspond to the vertical height of each subject, and the combination bite between the target arch and the grand arch ( (Not shown) is installed, but it is preferable to understand that it encompasses the correction to correspond to the vertical height of each person to be treated by the occlusal pressure.
그리고, 구강스캐너 또는 컴퓨터단층촬영기 등의 촬상장치를 이용하여 복수개의 스캐닝이미지 및 CT 이미지와 같은 각 이미지데이터가 획득되며, 상기 플래닝부로 전송된다. 상세히, 복수개의 상기 스캐닝이미지는, 상기 대상악궁의 외면에 대한 제1스캐닝이미지, 상기 대합악궁의 외면에 대한 제2스캐닝이미지 및 상기 결합바이트(미도시)에 대한 이미지정보를 포함하는 제3스캐닝이미지를 포함할 수 있다. 즉, 상기 대상악궁의 표면정보(2d)는 상기 제1스캐닝이미지로부터 획득되며, 상기 대합악궁의 표면정보는 상기 제2스캐닝이미지로부터 획득된다. 이때, 상기 결합바이트에 대한 이미지정보라 함은 상기 결합바이트를 스캐닝하여 획득된 정보 및 상기 결합바이트에 의해 교합된 상기 대상악궁 및 상기 대합악궁을 스캐닝하여 획득된 정보를 포괄하는 것으로 이해함이 바람직하다.Then, each image data such as a plurality of scanning images and CT images is acquired using an imaging device such as an oral scanner or a computed tomography machine, and transmitted to the planning unit. In detail, the plurality of scanning images includes a first scanning image of the outer surface of the target arch, a second scanning image of the outer surface of the grand arch, and a third scanning including image information about the combined byte (not shown). May contain images. That is, the surface information 2d of the target arch is obtained from the first scanning image, and the surface information of the arch arch is obtained from the second scanning image. In this case, it is preferable to understand that the image information on the combined byte includes information obtained by scanning the combined byte and information obtained by scanning the target arch and the grand arch that are occluded by the combined byte. .
한편, 상기 제1스캐닝이미지 및 상기 제2스캐닝이미지의 각각의 기설정된 비교영역의 이미지단위들과 상기 제3스캐닝이미지의 대응영역의 일치율이 산출된다. 이때, 상기 일치율이 기설정된 설정치 이상인 경우에 상기 제1스캐닝이미지 및 상기 제2스캐닝이미지의 각각의 비교영역이 상기 제3스캐닝이미지의 대응영역에 정렬 및 배치된다. 이를 통해, 상기 대상악궁의 표면정보(2d) 및 상기 대합악궁의 표면정보는 상기 수직고경에 대응되도록 정렬 배치된 상태로 상기 3차원 작업이미지(1d) 내에 포함된다.Meanwhile, a match rate between image units of each preset comparison area of the first scanning image and the second scanning image and a corresponding area of the third scanning image is calculated. In this case, when the matching rate is greater than or equal to a preset value, each comparison area of the first and second scanning images is aligned and arranged in the corresponding area of the third scanned image. Through this, the surface information 2d of the target arch and the surface information of the arch arch are included in the three-dimensional work image 1d in a state arranged to correspond to the vertical height.
그리고, 상기 CT 이미지는 상기 결합바이트가 결합되어 상기 수직고경에 대응되도록 교합된 상태에서의 구강을 컴퓨터단층촬영기를 이용하여 직접 촬상하여 획득됨이 바람직하다. 이를 통해, 상기 CT 이미지에는 밀도가 낮아 방사선이 투과되는 입술, 볼점막, 잇몸 등의 연조직을 제외한 상기 대상악궁측의 치조골 3차원 데이터를 포함한다. 더불어, 상기 대합악궁측에 대합치가 잔존하는 경우, 상기 CT 이미지에는 상기 결합바이트에 의해 상기 대상악궁측과 상기 수직고경에 대응하여 이격된 대합치 3차원 데이터가 포함될 수 있다.In addition, it is preferable that the CT image is obtained by directly imaging the oral cavity in a state in which the binding bite is combined to correspond to the vertical height using a computed tomography machine. Through this, the CT image includes 3D data of the alveolar bone on the side of the target arch, excluding soft tissues such as lips, cheek mucosa, and gums through which radiation is transmitted due to its low density. In addition, when the antagonist teeth remain on the antral arch side, the CT image may include three-dimensional data of the antagonal teeth spaced from the target arch side and corresponding to the vertical height by the combination byte.
그리고, 픽스츄어 및 디지털 어버트먼트의 식립정보는 상기 대상악궁의 잇몸부 외측으로 돌출되어 상기 스캐닝이미지 및 상기 CT 이미지에 표시되는 상기 어버트먼트 결합부 프로파일에 대응하여 설정될 수 있다. 즉, 상기 제1스캐닝이미지에는 잇몸부 외측으로 결합부 프로파일이 외부로 돌출된 상태의 대상악궁의 표면정보(2d)가 3차원으로 표시될 수 있다. 이하에서, 상기 3차원 작업이미지(1d)에 표시된 상기 결합부 프로파일은 상기 대상악궁에 기식립된 어버트먼트의 결합부에 대하여 스캐닝된 표면정보 및 상기 가상 어버트먼트(100k)를 포괄하는 것으로 이해함이 바람직하다. In addition, the placement information of the fixture and the digital abutment may be set in correspondence with the abutment coupling portion profile displayed on the scanning image and the CT image by protruding outside the gum portion of the target arch. That is, in the first scanning image, the surface information 2d of the target arch in which the coupling part profile protrudes outward from the gum part may be displayed in three dimensions. Hereinafter, the coupling portion profile displayed in the three-dimensional working image 1d includes surface information scanned with respect to the coupling portion of the abutment previously erected in the target arch and the virtual abutment 100k. It is desirable to understand.
또한, 상기 3차원 작업이미지(1d)에는 상기 결합부 프로파일이 표시되는 상기 대상악궁의 표면정보 및 이와 상기 수직고경에 대응하여 이격된 상기 대합악궁의 표면정보가 3차원으로 이미지화되어 표시된다. 그리고, 상기 대상악궁의 표면정보(2d), 상기 대합악궁의 표면정보 및 상기 식립정보가 포함된 상기 3차원 작업이미지(1d) 내에 상기 인공치관의 설계정보(300d)가 생성된다. In addition, in the three-dimensional work image 1d, the surface information of the target arch on which the coupling part profile is displayed, and the surface information of the arch arch spaced apart in correspondence with the vertical height are imaged and displayed in three dimensions. In addition, the design information (300d) of the artificial crown is generated in the three-dimensional work image (1d) including the surface information (2d) of the target arch, the surface information of the grand arch, and the implantation information.
상세히, 상기 가상 어버트먼트(100k)의 결합부 외면 프로파일에 대응하는 가상 형합홈(301d)이 설정된 인공치관의 설계정보(300d)가 상기 플래닝부에 의해 생성된다. 여기서, 상기 가상 형합홈(301d)의 내면 프로파일은 가상 어버트먼트(100k)의 결합부 외면 프로파일에 실질적으로 대응하는 외면 프로파일로 설정됨이 가장 바람직하다. 이때, 경우에 따라 실물로 제조된 상기 결합부(13)의 외면 및 상기 형합홈의 내면 사이에 경화성 수지가 충진 및 경화되어 공극이 보정되도록 기설정된 공극 간격에 대응하여 이격되도록 형성될 수도 있다.In detail, design information 300d of the artificial crown in which the virtual fitting groove 301d corresponding to the outer profile of the coupling portion of the virtual abutment 100k is set is generated by the planning unit. Here, it is most preferable that the inner profile of the virtual fitting groove 301d is set to an outer profile substantially corresponding to the outer profile of the coupling portion of the virtual abutment 100k. In this case, in some cases, a curable resin may be filled and cured between the outer surface of the coupling part 13 made in real form and the inner surface of the mating groove to be formed so as to be spaced apart in correspondence with a predetermined gap gap so that the gap is corrected.
한편, 상기 인공치관의 설계정보(300d)에 대응하여 인공치관이 최종 제조된다(s40). 여기서, 상기 인공치관의 설계정보(300d)는 실물의 인공치관에 실질적으로 대응하여 제조되며 상호간 동일한 크기 및 형상을 갖는다. 또한, 가상 형합홈(301d)은 실물의 형합홈에 실질적으로 대응되며 상호간 동일한 크기 및 형상을 갖는다.Meanwhile, the artificial crown is finally manufactured in response to the design information 300d of the artificial crown (s40). Here, the design information 300d of the artificial crown is manufactured substantially corresponding to the real artificial crown and has the same size and shape. In addition, the virtual fitting groove 301d substantially corresponds to the real fitting groove and has the same size and shape.
이에 따라, 상기 인공치관의 설계정보(300d)에 대응하여 제조되는 실물의 인공치관 형합홈이 실물의 디지털 어버트먼트 결합부(13)의 외면 프로파일에 실질적으로 대응되는 내면 프로파일로 제조된다. 따라서, 최종 제조되는 치아수복물의 설치시 상기 디지털 어버트먼트와의 형합도가 현저히 개선되므로 피시술자의 저작감도가 개선될 수 있다. Accordingly, the real artificial crown fitting groove manufactured in response to the design information 300d of the artificial crown is manufactured with an inner profile substantially corresponding to the outer surface profile of the real digital abutment coupling part 13. Therefore, when the final dental restoration is installed, the degree of conformity with the digital abutment is remarkably improved, so that the mastication sensitivity of the subject to be treated can be improved.
따라서, 미세한 크기로서 제공되는 복수개 타입의 디지털 어버트먼트가 구강에 식립된 상태의 3차원 작업이미지를 사용하여 디지털라이브러리로부터 정확히 대응되는 가상 어버트먼트가 추출된다. 이를 통해, 디지털 어버트먼트의 사이즈 및 형태에 대응하는 고유식별표식의 시각적 인식을 통해 가상 어버트먼트에 형합되는 정확한 인공치관의 설계가 가능하므로 시술자의 혼선이 미연에 방지될 수 있다.Accordingly, a virtual abutment that corresponds accurately is extracted from the digital library using a three-dimensional working image in which a plurality of types of digital abutments provided as fine sizes are placed in the oral cavity. Through this, since it is possible to design an accurate artificial crown that matches the virtual abutment through visual recognition of the unique identification mark corresponding to the size and shape of the digital abutment, confusion of the operator can be prevented in advance.
이상 설명한 바와 같이, 본 발명은 상술한 각 실시예에 한정되는 것은 아니며, 본 발명의 청구항에서 청구하는 범위를 벗어남 없이 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 변형 실시되는 것은 가능하며, 이러한 변형 실시는 본 발명의 범위에 속한다.As described above, the present invention is not limited to each of the above-described embodiments, and it is possible to be modified and implemented by those of ordinary skill in the art without departing from the scope claimed in the claims of the present invention. And, these modifications are within the scope of the present invention.
본 발명은 치아 수복물 제품의 제조 산업에 적용될 수 있다.The present invention can be applied in the manufacturing industry of dental restoration products.

Claims (6)

  1. 상부에 스캔 화상처리 인식을 위한 고유식별표식이 형성된 디지털 어버트먼트가 식립된 대상악궁이 구강스캐너를 통해 스캐닝되는 제1단계; A first step of scanning a target arch in which a digital abutment is placed on which a unique identification mark is formed for recognition of a scan image processing is placed through an oral scanner;
    상기 구강스캐너를 통해 스캐닝된 상기 디지털 어버트먼트 및 상기 대상악궁의 표면정보가 스캔 화상처리를 통해 3차원 디지털데이터로 변환되어 획득되되, 3차원 디지털데이터화된 상기 디지털 어버트먼트에 대한 표면정보를 포함하는 3차원 작업이미지가 생성되는 제2단계; The digital abutment scanned through the oral scanner and the surface information of the target arch are converted into 3D digital data through scan image processing and obtained, and surface information on the digital abutment converted into 3D digital data is obtained. A second step of generating a three-dimensional work image including;
    상기 디지털 어버트먼트의 고유식별표식에 대응하여 디지털라이브러리로부터 추출된 가상 어버트먼트가 상기 3차원 작업이미지에 가상 배치 및 대체되고, 상기 가상 어버트먼트의 외면 프로파일에 대응하는 가상 형합홈이 설정된 인공치관의 설계정보가 생성되는 제3단계; 및 In response to the unique identification mark of the digital abutment, the virtual abutment extracted from the digital library is virtually arranged and replaced in the 3D work image, and a virtual mating groove corresponding to the outer profile of the virtual abutment is set. A third step of generating design information of an artificial crown; And
    상기 설계정보에 대응하여 인공치관이 최종 제조되는 제4단계를 포함하는 디지털 어버트먼트를 이용한 치아수복물 제조방법. A method of manufacturing a dental restoration using a digital abutment comprising a fourth step in which an artificial crown is finally manufactured in response to the design information.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 제3단계에서, 상기 가상 어버트먼트는 실물로 구비된 상기 디지털 어버트먼트의 고유식별표식에 대응하여 디지털라이브러리로부터 추출되며, In the third step, the virtual abutment is extracted from the digital library in response to the unique identification mark of the digital abutment provided in real life,
    추출된 상기 가상 어버트먼트는 상기 고유식별표식에 대응하여 상기 3차원 작업이미지상의 가상 대상악궁 표면정보에 가상 배치됨을 특징으로 하는 디지털 어버트먼트를 이용한 치아수복물 제조방법. The extracted virtual abutment is virtually placed on the virtual target arch surface information on the three-dimensional work image in response to the unique identification mark.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 제1단계에서, 상기 고유식별표식은 상기 디지털 어버트먼트의 사이즈 및 형태별로 부여되되 가시기준지표를 제공하도록 상기 인공치관의 하부에 형성된 형합홈에 형합되도록 삽입되는 결합부 상부의 인식저하표면에 배치되며, 선택적으로 적어도 하나 이상 형성되는 요홈으로 구비되고, In the first step, the unique identification mark is given according to the size and shape of the digital abutment, and is inserted into a fitting groove formed under the artificial crown to provide a visible reference indicator. It is disposed, optionally provided with at least one groove formed,
    상기 제2단계에서, 상기 표면정보는 상기 고유식별표식을 포함하는 적어도 셋 이상의 상기 결합부 표면의 절곡진 부분이 상기 구강스캐너 의해 인식된 후 스캔 화상처리됨에 따라 3차원 디지털테이터화됨을 특징으로 하는 디지털 어버트먼트를 이용한 치아수복물 제조방법. In the second step, the surface information is converted into three-dimensional digital data as at least three bent portions of the surfaces of the coupling unit including the unique identification mark are recognized by the oral scanner and then scanned. A method of manufacturing a dental restoration using digital abutment.
  4. 스캔 화상처리를 통해 3차원 디지털데이터화되어 3차원 작업이미지에 가상 배치되며 디지털라이브러리에서 추출되는 가상 어버트먼트에 대응되는 인공치관의 설계정보 생성에 사용되는 디지털 어버트먼트에 있어서, In the digital abutment used for generating design information of artificial crowns corresponding to the virtual abutment extracted from the digital library, which is converted into 3D digital data through scan image processing and is virtually placed in a 3D working image,
    치조골에 식립된 픽스츄어의 상단부 내부면에 형성된 헥사홈에 형합되도록 외면에 헥사돌기가 형성되며, 내부에 상기 픽스츄어와의 체결을 매개하는 체결나사가 삽입되도록 관통공이 관통 형성되는 체결돌기; A fastening protrusion through which a through hole is formed so that a hexa protrusion is formed on an outer surface so as to fit into a hexa groove formed on an inner surface of an upper end of the fixture implanted in the alveolar bone, and a fastening screw that mediates the fastening with the fixture is inserted therein;
    상기 체결돌기의 상측에 일체로 구비되되, 잇몸의 연조직 내측으로 배치되도록 상기 픽스츄어가 식립된 잇몸의 주변부 형상에 대응하는 외면 프로파일로 형성되는 마진부; A margin portion integrally provided on the upper side of the fastening protrusion and formed in an outer profile corresponding to the shape of the peripheral portion of the gum in which the fixture is placed so as to be disposed inside the soft tissue of the gum;
    상기 마진부의 상측에 일체로 구비되되, 피시술자의 구강에 설치되는 인공치관의 하부에 형성된 형합홈에 형합되도록 상기 형합홈의 내면 프로파일에 실질적으로 대응되는 외면 프로파일로 구비되며, 상기 관통공과 연통되되 상기 체결나사의 헤드부가 걸림되는 단턱부가 형성된 연통공이 형성되는 결합부; 및 It is provided integrally on the upper side of the margin part, and is provided with an outer profile substantially corresponding to the inner profile of the fitting groove so as to fit into the fitting groove formed in the lower portion of the artificial crown installed in the oral cavity of the patient, and communicated with the through hole, wherein the A coupling portion having a communication hole formed with a stepped portion through which the head portion of the fastening screw is engaged; And
    상기 디지털라이브러리에 저장된 상기 가상 어버트먼트와의 개별 매칭을 위해 상기 결합부의 상부에 시각적으로 인식되도록 표시되어 가시기준지표로서 제공되는 고유식별표식을 포함하는 디지털 어버트먼트. A digital abutment including a unique identification mark displayed to be visually recognized on an upper portion of the coupling portion for individual matching with the virtual abutment stored in the digital library and provided as a visible reference indicator.
  5. 제 4 항에 있어서, The method of claim 4,
    상기 고유식별표식은 사이즈 및 형태별로 부여되는 상기 디지털 어버트먼트의 개별 식별을 위해 상기 결합부의 상부에 선택적으로 적어도 하나 이상 형성되는 요홈으로 구비되되, The unique identification mark is provided with at least one groove selectively formed on the upper portion of the coupling portion for individual identification of the digital abutment given by size and shape,
    상기 요홈이 복수개로 구비되는 경우, 상기 요홈은 상호간 기설정된 간격을 두고 이격 배치됨을 특징으로 하는 디지털 어버트먼트. When the plurality of grooves are provided, the grooves are digital abutment, characterized in that the grooves are spaced apart from each other at a predetermined interval.
  6. 제 4 항에 있어서, The method of claim 4,
    상기 고유식별표식은 상기 디지털 어버트먼트의 사이즈 및 형태별로 부여되되 가시기준지표를 제공하도록 상기 결합부 상부의 인식저하표면에 배치됨을 특징으로 하는 디지털 어버트먼트. The unique identification mark is provided for each size and shape of the digital abutment, and is disposed on a recognition-degrading surface above the coupling portion to provide a visible reference indicator.
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