CN110815493A - Guide plate manufacturing method based on 3D model and used for anterior tooth restoration - Google Patents
Guide plate manufacturing method based on 3D model and used for anterior tooth restoration Download PDFInfo
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- CN110815493A CN110815493A CN201911194032.9A CN201911194032A CN110815493A CN 110815493 A CN110815493 A CN 110815493A CN 201911194032 A CN201911194032 A CN 201911194032A CN 110815493 A CN110815493 A CN 110815493A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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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
- A61C13/08—Artificial teeth; Making same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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Abstract
The invention discloses a guide plate manufacturing method based on a 3D model and used for anterior tooth restoration, which comprises the following steps: and B: scanning the oral cavity to obtain a 3D model of the interior of the oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing defective anterior teeth C, and the step C: restoring the tooth morphology of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a3, and a step D: c, 3D printing operation is carried out on the three-dimensional dentition model a3 obtained in the step C, a dentition model entity is obtained, and the step E is as follows: and finishing the manufacture of the guide plate based on the dentition model entity.
Description
Technical Field
The invention belongs to the field of oral medical treatment, and particularly relates to a guide plate manufacturing method based on a 3D model and used for anterior tooth restoration.
Background
At present, the treatment mode for repairing the anterior tooth defect is mainly direct plastic stacking or plastic stacking by preparing a guide plate after a craftsman stacks a wax pattern. The main problems with the direct stacking method are that the recovery of the morphology is very limited, including labial and adjacent surfaces, and that the recovery of the occlusal relationship is not ideal and the long term effect is not good. The direct plastic-piling method is less used for repairing the anterior tooth defect in clinic.
For a pilot plate plastic-stacking repair front tooth prepared after a technician piles a wax pattern, the main steps comprise: 1. taking upper and lower jaw impressions in the mouth of a patient by using impression materials; 2. gypsum perfusing the patient model; 3. stacking and molding the defective appearance on the plaster model by using wax, and recovering the basic shape; 4. preparing a guide plate; 5. the guide plate is in place and anterior tooth restoration is performed. When the skill level is high, and the impression and the like are complete and have no air bubbles, deformation and other influencing factors, the method can better complete the wax pattern of the anterior teeth so as to better perform the plastic piling operation. When the skill level is not good, or the plaster model is deformed or has a larger difference with the real tooth form due to misoperation during mould taking, the wax pattern of the anterior teeth cannot be well finished, and the anterior teeth have poor plastic piling effect. And when the patient is intraorally used for taking a model, the patient can feel nausea, vomiting and other reactions in most cases, and the comfort level of clinical diagnosis and treatment of the patient is reduced.
Disclosure of Invention
The invention aims to provide a guide plate manufacturing method for repairing anterior teeth based on a 3D model for accurately restoring the appearance and the occlusion relation of a tooth body by a computer, which can manufacture a palate side guide plate and a lip side guide plate, is convenient for guiding doctors to accurately restore the appearance of the anterior teeth, reduces the technical sensitivity of the anterior teeth repairing process, shortens the time beside a patient chair, improves the diagnosis and treatment comfort level, and enables the repaired teeth to have both attractive appearance and functions.
In order to solve the problems in the prior art, the invention adopts the technical scheme that:
a guide plate manufacturing method based on a 3D model and used for anterior tooth restoration comprises the following steps:
and B: obtaining a 3D model of the inside of an oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing a defective anterior tooth c;
and C: restoring the tooth form of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a 3;
step D: and D, performing 3D printing operation on the three-dimensional dentition model a3 obtained in the step C to obtain a dentition model entity.
Step E: and finishing the manufacture of the guide plate based on the dentition model entity.
The inside of the oral cavity is scanned by using the scanner, so that the accuracy of modeling inside the oral cavity is improved.
Further, the step C is performed based on the EXOCAD software, and the step C specifically includes the following steps:
step C1: acquiring the three-dimensional dentition model a1 in the step B2;
step C2: performing shape restoration of the defective anterior tooth c based on the three-dimensional dentition model a1 to obtain a three-dimensional dentition model a 2;
step C3: and (4) performing simulated occlusion functional restoration of the defective anterior tooth c based on the three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
The method has the advantages that the EXOCAD software is used for reading the three-dimensional dentition model a1, and the three-dimensional dentition model a1 is repaired through the EXOCAD software, so that the repairing process is separated from a human body, the repairing accuracy is improved, and the chair side time of a patient is shortened.
Further, the step C2 specifically includes the following steps:
step C21: acquiring information of defective anterior teeth c in the three-dimensional dentition model a 1;
step C22: selecting the appearance of a same-name jaw tooth d corresponding to the defective anterior tooth c in the three-dimensional dentition model a1, and covering the same-name jaw tooth d on the position of the defective anterior tooth c in a mirror image manner to obtain a mirror image body b;
step C23: comparing the mirror image body b with the defective anterior tooth c, and removing the part of the mirror image body b overlapped with the defective anterior tooth c;
step C24: and trimming the edge of the mirror image body b to ensure that the edge of the mirror image body b is completely attached to the edge of the defective anterior tooth c, thereby obtaining a three-dimensional dentition model a 2.
Since the same-name same-jaw tooth d is closest to the defective anterior tooth c in shape and size, the shape of the same-name same-jaw tooth d corresponding to the defective anterior tooth c is selected, so that the manufactured three-dimensional dentition model a1 is closer to the shape of the human anterior tooth.
Further, the step C3 includes: and C, performing simulated occlusion action on the three-dimensional dentition model a2 obtained in the step C24, wherein the simulated occlusion action comprises the protrusion occlusion and the side occlusion of the three-dimensional dentition model a2, and checking and adjusting the repaired three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
Furthermore, in the simulated occlusion action, the forward-extending condylar guidance inclination and the forward-extending guidance inclination are obtained, and the three-dimensional dentition model a2 is used for simulating the occlusion action, wherein the forward-extending condylar guidance inclination and the forward-extending guidance inclination are obtained individually according to different people.
Furthermore, the anterior extension condylar guidance inclination is 25-35 degrees, the anterior extension guidance inclination is 10-15 degrees, and the anterior extension cutting guidance inclination is generally larger than the condylar guidance inclination by 8-15 degrees.
The prosthesis is ensured not to influence the occlusion relation, so that the service life of the prosthesis is ensured, the joint of a patient is protected, the EXOCAD software is used for dynamically simulating the three-dimensional dentition model a2, the three-dimensional dentition model a3 is enabled to be closer to an actual tooth, and the manufacturing quality of the guide plate is improved.
Further, the step E includes: a palate side guide and a lip side guide are prepared based on the three-dimensional dentition model a 3.
Furthermore, the palate side guide plate and the lip side guide plate are made of silicon rubber.
The palatine side guide plate is used as a palatine side base plate for restoring defects and is used as a support surface for restoration, the labial side guide plate is used for completely restoring the anatomical form of the labial surface, and the front tooth restoration with high precision and complete restoration can be completed through the two guide plates.
Further, in the step E: and 3, printing the palate side guide plate and the lip side guide plate by using a silicon rubber material, and ensuring the printing time of the silicon rubber to be 4-5 min.
Further, the guide plate manufacturing method based on the 3D model and used for anterior tooth restoration further comprises the following steps: and cleaning the oral cavity, specifically, detecting the cleanliness of the oral cavity and the damaged anterior teeth c, and outputting a detection result, wherein the step A is arranged before the step B.
Furthermore, the guide plate entity is manufactured by adopting a 3D printing technology; when the manufacturing of the guide plate entity is completed according to the current guide plate model, firstly, a file containing the guide plate model is converted into an STL file of a standard mosaic language, then the STL file is sent to a 3D printing device, and the 3D printing device completes the printing of the guide plate entity according to the guide plate model in the STL file.
The invention has the beneficial effects that:
(1) the three-dimensional scanner is placed in the mouth to scan the inside of the oral cavity, so that the accuracy of modeling inside the oral cavity is improved.
(2) According to the invention, the EXOCAD software is used for reading the three-dimensional dentition model a1, and the three-dimensional dentition model a1 is repaired by the EXOCAD software, so that the repairing process is separated from the human body, the repairing accuracy is improved, and the chair-side time of a patient is shortened.
(3) According to the invention, the EXOCAD software is used for dynamically simulating the three-dimensional dentition model a2, so that the three-dimensional dentition model a3 is closer to the teeth of a human body, and the manufacturing quality of the guide plate is improved.
Drawings
FIG. 1 is a flow chart of the operation of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and reference numerals.
The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. When the terms "comprises," "comprising," "includes," and/or "including" are used herein, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example 1:
a guide plate manufacturing method based on a 3D model and used for anterior tooth restoration comprises the following steps:
and B: obtaining a 3D model of the inside of an oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing a defective anterior tooth c;
and C: restoring the tooth form of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a 3;
step D: c, performing 3D printing operation on the three-dimensional dentition model a3 obtained in the step C to obtain a dentition model entity;
step E: and finishing the manufacture of the guide plate based on the dentition model entity.
By manufacturing the dentition model and manufacturing the guide plate by using the dentition model, the repairing process is separated from the human body, the repairing accuracy is improved, and the chair side time of a patient is shortened.
Example 2:
as shown in fig. 1, a method for manufacturing a guide plate for anterior tooth restoration based on a 3D model includes the following steps:
and B: obtaining a 3D model of the inside of an oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing a defective anterior tooth c;
and C: restoring the tooth form of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a 3;
step D: and D, performing 3D printing operation on the three-dimensional dentition model a3 obtained in the step C to obtain a dentition model entity.
Step E: and finishing the manufacture of the guide plate based on the dentition model entity.
The inside of the oral cavity is scanned by using the scanner, so that the accuracy of modeling inside the oral cavity is improved.
The step C is carried out based on EXOCAD software, and the step C specifically comprises the following steps:
step C1: acquiring the three-dimensional dentition model a1 in the step B2;
step C2: performing shape restoration of the defective anterior tooth c based on the three-dimensional dentition model a1 to obtain a three-dimensional dentition model a 2;
step C3: and (4) performing simulated occlusion functional restoration of the defective anterior tooth c based on the three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
The method has the advantages that the EXOCAD software is used for reading the three-dimensional dentition model a1, and the three-dimensional dentition model a1 is repaired through the EXOCAD software, so that the repairing process is separated from a human body, the repairing accuracy is improved, and the chair side time of a patient is shortened.
The step C2 specifically includes the following steps:
step C21: acquiring information of defective anterior teeth c in the three-dimensional dentition model a 1;
step C22: selecting the appearance of a same-name jaw tooth d corresponding to the defective anterior tooth c in the three-dimensional dentition model a1, and covering the same-name jaw tooth d on the position of the defective anterior tooth c in a mirror image manner to obtain a mirror image body b;
step C23: comparing the mirror image body b with the defective anterior tooth c, and removing the part of the mirror image body b overlapped with the defective anterior tooth c;
step C24: and trimming the edge of the mirror image body b to ensure that the edge of the mirror image body b is completely attached to the edge of the defective anterior tooth c, thereby obtaining a three-dimensional dentition model a 2.
Since the same-name identical jaw tooth d is closest to the defect anterior tooth c in shape and size, the shape of the same-name identical jaw tooth d corresponding to the defect anterior tooth c is selected here.
The step C3 includes: and C, performing simulated occlusion action on the three-dimensional dentition model a2 obtained in the step C24, wherein the simulated occlusion action comprises the protrusion occlusion and the side occlusion of the three-dimensional dentition model a2, and checking and adjusting the repaired three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
The simulated occlusion action comprises the steps of obtaining the forward-extending condylar guidance inclination and the forward-extending guidance inclination, and enabling the three-dimensional dentition model a2 to simulate the occlusion action, wherein the forward-extending condylar guidance inclination and the forward-extending guidance inclination are obtained according to individuation of different people.
The anterior condylar guidance inclination is 25-35 degrees, the anterior guidance inclination is 10-15 degrees, and the anterior cutting guidance inclination is generally 8-15 degrees larger than the condylar guidance inclination.
The prosthesis is ensured not to influence the occlusion relation, so that the service life of the prosthesis is ensured, the joint of a patient is protected, the EXOCAD software is used for dynamically simulating the three-dimensional dentition model a2, the three-dimensional dentition model a3 is enabled to be closer to an actual tooth, and the manufacturing quality of the guide plate is improved.
The step E comprises the following steps: a palate side guide and a lip side guide are prepared based on the three-dimensional dentition model a 3.
The palate side guide plate and the lip side guide plate are made of silicon rubber.
The palatine side guide plate is used as a palatine side base plate for restoring defects and is used as a support surface for restoration, the labial side guide plate is used for completely restoring the anatomical form of the labial surface, and the front tooth restoration with high precision and complete restoration can be completed through the two guide plates.
Example 3:
as shown in fig. 1, a method for manufacturing a guide plate for anterior tooth restoration based on a 3D model includes the following steps:
step A: cleaning the oral cavity;
and B: obtaining a 3D model of the inside of an oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing a defective anterior tooth c;
and C: restoring the tooth form of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a 3;
step D: c, performing 3D printing operation on the three-dimensional dentition model a3 obtained in the step C to obtain a dentition model entity;
step E: and finishing the manufacture of the guide plate based on the dentition model entity.
The inside of the oral cavity is scanned by using the scanner, so that the accuracy of modeling inside the oral cavity is improved.
The step C is carried out based on EXOCAD software, and the step C specifically comprises the following steps:
step C1: acquiring the three-dimensional dentition model a1 in the step B2;
step C2: performing shape restoration of the defective anterior tooth c based on the three-dimensional dentition model a1 to obtain a three-dimensional dentition model a 2;
step C3: and (4) performing simulated occlusion functional restoration of the defective anterior tooth c based on the three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
The method has the advantages that the EXOCAD software is used for reading the three-dimensional dentition model a1, and the three-dimensional dentition model a1 is repaired through the EXOCAD software, so that the repairing process is separated from a human body, the repairing accuracy is improved, and the chair side time of a patient is shortened.
The step C2 specifically includes the following steps:
step C21: acquiring information of defective anterior teeth c in the three-dimensional dentition model a 1;
step C22: selecting the appearance of a same-name jaw tooth d corresponding to the defective anterior tooth c in the three-dimensional dentition model a1, and covering the same-name jaw tooth d on the position of the defective anterior tooth c in a mirror image manner to obtain a mirror image body b;
step C23: comparing the mirror image body b with the defective anterior tooth c, and removing the part of the mirror image body b overlapped with the defective anterior tooth c;
step C24: and trimming the edge of the mirror image body b to ensure that the edge of the mirror image body b is completely attached to the edge of the defective anterior tooth c, thereby obtaining a three-dimensional dentition model a 2.
Since the same-name identical jaw tooth d is closest to the defect anterior tooth c in shape and size, the shape of the same-name identical jaw tooth d corresponding to the defect anterior tooth c is selected here.
The step C3 includes: and C, performing simulated occlusion action on the three-dimensional dentition model a2 obtained in the step C24, wherein the simulated occlusion action comprises protrusion occlusion and side occlusion of the three-dimensional dentition model a2, and checking and adjusting the position and thickness of the palate side of the repaired three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
The prosthesis is ensured not to influence the occlusion relation, so that the service life of the prosthesis is ensured, the joint of a patient is protected, the EXOCAD software is used for dynamically simulating the three-dimensional dentition model a2, the three-dimensional dentition model a3 is enabled to be closer to an actual tooth, and the manufacturing quality of the guide plate is improved.
The step E comprises the following steps: a palate side guide and a lip side guide are prepared based on the three-dimensional dentition model a 3.
The palate side guide plate and the lip side guide plate are made of silicon rubber materials, and are printed by the silicon rubber materials, so that the printing time of the silicon rubber is guaranteed to be 4-5 min.
The palatine side guide plate is used as a palatine side base plate for restoring defects and is used as a support surface for restoration, the labial side guide plate is used for completely restoring the anatomical form of the labial surface, and the front tooth restoration with high precision and complete restoration can be completed through the two guide plates.
The embodiments described above are merely illustrative, and may or may not be physically separate, if referring to units illustrated as separate components; if reference is made to a component displayed as a unit, it may or may not be a physical unit, and may be located in one place or distributed over a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. A guide plate manufacturing method based on a 3D model and used for anterior tooth restoration is characterized in that: the method comprises the following steps:
and B: obtaining a 3D model of the inside of an oral cavity, wherein the 3D model is a three-dimensional dentition model a1 containing a defective anterior tooth c;
and C: restoring the tooth form of the defective anterior tooth c based on the three-dimensional dentition model a1 obtained in the step B to obtain a three-dimensional dentition model a 3;
step D: c, performing 3D printing operation on the three-dimensional dentition model a3 obtained in the step C to obtain a dentition model entity;
step E: and finishing the manufacture of the guide plate based on the dentition model entity.
2. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 1, wherein: the step C is carried out based on EXOCAD software, and the step C specifically comprises the following steps:
step C1: acquiring the three-dimensional dentition model a1 in the step B2;
step C2: performing shape restoration of the defective anterior tooth c based on the three-dimensional dentition model a1 to obtain a three-dimensional dentition model a 2;
step C3: and (4) performing simulated occlusion functional restoration of the defective anterior tooth c based on the three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
3. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 2, wherein: the step C2 specifically includes the following steps:
step C21: acquiring information of defective anterior teeth c in the three-dimensional dentition model a 1;
step C22: selecting the appearance of a same-name jaw tooth d corresponding to the defective anterior tooth c in the three-dimensional dentition model a1, and covering the same-name jaw tooth d on the position of the defective anterior tooth c in a mirror image manner to obtain a mirror image body b;
step C23: comparing the mirror image body b with the defective anterior tooth c, and removing the part of the mirror image body b overlapped with the defective anterior tooth c;
step C24: and trimming the edge of the mirror image body b to ensure that the edge of the mirror image body b is completely attached to the edge of the defective anterior tooth c, thereby obtaining a three-dimensional dentition model a 2.
4. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 3, wherein: the step C3 includes: and C, performing simulated occlusion action on the three-dimensional dentition model a2 obtained in the step C24, wherein the simulated occlusion action comprises the protrusion occlusion and the side occlusion of the three-dimensional dentition model a2, and checking and adjusting the repaired three-dimensional dentition model a2 to obtain a three-dimensional dentition model a 3.
5. The method for manufacturing a guide plate for anterior tooth restoration based on a 3D model according to claim 4, wherein the method comprises the following steps: the simulation occlusion action comprises obtaining an anterior condylar guidance slope and an anterior guidance slope, and enabling the three-dimensional dentition model a2 to perform the simulation of the occlusion action.
6. The method for manufacturing a guide plate for anterior tooth restoration based on a 3D model according to claim 5, wherein the method comprises the following steps: the anterior condyle guiding inclination is 25-35 degrees, and the anterior condyle guiding inclination is 10-15 degrees.
7. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 1, wherein: further comprising the step of A: the oral cavity is cleaned.
8. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 1, wherein: the step E comprises the following steps: a palate side guide and a lip side guide are prepared based on the three-dimensional dentition model a 3.
9. A method of making a guide plate for anterior tooth restoration based on a 3D model according to claim 8, wherein: in the step E: and printing the palate side guide plate and the lip side guide plate by using a silicon rubber material.
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| CN111973309A (en) * | 2020-07-24 | 2020-11-24 | 上海交通大学医学院附属第九人民医院 | Method for manufacturing blending guide plate |
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