CN110680538A - Manufacturing method and wearing method of digital clearance retainer - Google Patents
Manufacturing method and wearing method of digital clearance retainer Download PDFInfo
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- CN110680538A CN110680538A CN201910827010.5A CN201910827010A CN110680538A CN 110680538 A CN110680538 A CN 110680538A CN 201910827010 A CN201910827010 A CN 201910827010A CN 110680538 A CN110680538 A CN 110680538A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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Abstract
The invention discloses a manufacturing method of a digital space retainer, relating to the technical field of children oral medicine and comprising the following steps: s1: scanning the oral cavity of a patient by using an oral scanner, acquiring digital models of the upper jaw and the lower jaw of the patient, and acquiring a bite relation; s2: designing a digital model of the digital clearance retainer by combining design software based on the acquired digital model; s3: manufacturing a clearance retainer by applying a PEEK/PEKK material and combining a digital model of the digital clearance retainer; the invention adopts the digital scanning technology to scan the oral cavity of the patient to obtain the digital model, and does not need to take an impression in the oral cavity, thereby avoiding the conditions of discomfort, nausea and vomiting when the impression is taken by the patient; and by adopting a special high polymer material PEEK/PEKK, the appearance performance improvement space is large, the biocompatibility is excellent, the ray is semi-blocked, and the adhesion of bacterial plaque is not easy.
Description
Technical Field
The invention relates to the technical field of children oral medicine, in particular to a manufacturing method and a wearing method of a digital space retainer.
Background
The space keeper is a device which is manufactured for keeping the gap and maintaining the normal physiological space after the teeth of the children are lost, and can prevent the adjacent teeth from inclining to the lost part and the jaw teeth from extending. The space maintainer can keep the near-far and vertical space of the early-lost teeth in the dentition and keep the normal eruption of the inherited permanent teeth.
The conventional space holder is manufactured with the following disadvantages:
① the traditional gapping retainer needs to be made by taking an impression inside the mouth, most children feel uncomfortable and even feel nausea and vomiting;
② there are great errors in the manufacturing process of the traditional space maintainer, for example, the belt ring usually adopts a finished product pre-formed belt ring, which cannot be completely attached to the abutment, after the impression is taken out, the belt ring needs to be taken out from the mouth and manually reset to the impression, the position is difficult to be completely accurate, the cast plaster model may cause the belt ring to shift, a series of errors also exist in the manufacturing process of the space maintainer, which causes that the space maintainer cannot completely reach the accurate standard, and the space maintainer may need to be adjusted or even reworked;
③ the traditional space maintainer has the disadvantages of complicated manufacturing and wearing process, more times of repeated diagnosis and long operation time beside the chair;
④ the conventional space holder is made by hand, and usually made of metal material, it has problems of poor appearance, and may have problems after wearing, such as metal allergy, detachment of the space holder due to dissolution of glass ion binder, and secondary caries due to improper edge sealing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a manufacturing method and a wearing method of a digital space retainer.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method of making a digitized lash holder, comprising the steps of:
s1: scanning the oral cavity of a patient by using an oral scanner, acquiring digital models of the upper jaw and the lower jaw of the patient, and acquiring a bite relation;
s2: designing a digital model of the digital clearance retainer by combining digital design software based on the acquired digital internal model;
s3: the lash holders were fabricated using PEEK/PEKK material in combination with a digital model of the digital lash holder.
Further, the specific design steps of the digitized model of the digitized space holder in S2 are as follows:
s1: uploading the scanned digital internal model to a digital processing center, designing by using 3Shape dental manager Client, finishing the digital internal model, filling the concave of the digital internal model, reserving an adhesive space, and determining the direction of a positioning channel;
s2: designing a belt ring;
s3: designing a wire loop;
s4: and checking the occlusion condition after the design is finished.
In the method for manufacturing the digital space holder, the space holder in S3 is manufactured by cutting the substrate with a cutting device or by printing with a 3D printing technology.
In the method for manufacturing the digital space holder, the scanner in S1 is a scanner of model 3shape d 2000.
A method of donning a digital lash holder, comprising the steps of:
s1: carrying out acid etching treatment on the annular tissue surface of the space retainer for 5s by adopting 98% concentrated sulfuric acid, then washing with running water, and drying;
s2: link is coated on the ring-shaped tissue surface of the space retainer, light blowing is carried out after 10s, resin adhesive is uniformly coated after photocuring is carried out for 90s, photocuring is carried out for 20s after 10s,
s3: the abutment corresponding to the space retainer is isolated from moisture, then 37% orthophosphoric acid is used for acid etching on the belt ring contact surface of the abutment for 30s, then the abutment is washed by running water, isolated from moisture and dried, then the adhesive is coated on the acid etching surface of the abutment, and after 10s, the abutment is photocured for 20 s;
s4: coating the resin cement gate on a ring belt tissue surface of the space retainer, then wearing the space retainer on a corresponding abutment, pressing the space retainer in place, performing photocuring for 2s, removing redundant resin cement gate, and performing photocuring for 20 s;
s5: the occlusion is checked through occlusion paper, so that the patient is ensured to have no occlusion interference, and the wearing of the space retainer is completed.
The invention has the beneficial effects that:
(1) the invention adopts the digital scanning technology to scan the oral cavity of the patient to obtain the digital model, and does not need to take an impression in the oral cavity, thereby avoiding the conditions of discomfort, nausea and vomiting when the impression is taken by the patient;
(2) the invention completes the design of the digital model of the whole clearance retainer according to the acquired digital model, and prepares the clearance retainer by the digital model without adopting a finished product preformed belt ring or taking out the belt ring from the mouth after taking the mold and then manually resetting the belt ring into the impression, thereby reducing the error in the manufacturing process of the clearance retainer to the maximum extent and ensuring the precision of the clearance retainer; meanwhile, the requirement of personalized customization is really met;
(3) through digital design, the invention can save the steps of taking a ring, taking an impression, casting a plaster model, trying on and adjusting the clearance retainer and the like, can greatly shorten the operation time beside the chair, improve the manufacturing efficiency of the clearance retainer, can realize wearing on the same day and can reduce the number of times of the return visit;
(4) compared with metal materials, the special high polymer material PEEK/PEKK has the advantages that the space for improving the aesthetic property is large, the biocompatibility is excellent, the ray semi-radiation is blocked, the plaque is not easy to attach, the quality is only 1/4 of the metal material, and the situations that a gap retainer falls off due to the dissolution of a glass ion binder, the edge is not sealed, the abutment secondary caries is caused and the like are avoided;
(5) according to the invention, concentrated sulfuric acid is firstly adopted for acid etching on the ring-shaped tissue surface of the digital clearance retainer, so that the ring-shaped tissue surface forms a rough surface, thus the capacity of the adhesive is increased, the specific surface of the adhesive surface is increased, and the micro-mechanical locking force of the adhesive and the ring-shaped tissue surface of the clearance retainer is further improved; and the annular tissue surface of the interval retainer is uniformly coated with visio.
Drawings
FIG. 1 is a flow chart of a design of a fixed clearance holder digital model;
FIG. 2 is a schematic view of a fixed type space holder being tried on a resin mold;
FIG. 3 is a schematic view of a fixed space holder being worn within a patient's mouth;
FIG. 4 is a diagram showing a digital model of the oral cavity of a patient in example 2;
FIG. 5 is a schematic diagram of a digitized model of a movable cusp retainer;
fig. 6 is a schematic view of a removable denture type space holder;
FIG. 7 is a schematic view of a patient's mouth without the movable denture retainer;
FIG. 8 is a schematic view of a patient's mouth after wearing the movable denture space holder;
fig. 9 is a reaction diagram of PEEK/PEKK material with visio.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1:
the embodiment provides a manufacturing method of a digital clearance retainer, which comprises the following steps:
s1: scanning the oral cavity of a patient by using an oral cavity scanner, acquiring digital models of the upper jaw and the lower jaw of the patient, referring to an A picture and a B picture in figure 1, and acquiring a bite relation;
s2: based on the acquired digital model, uploading the scanned digital intraoral model to a digital processing center, designing by using 3Shape Dental Manager Client, finishing the digital intraoral model, referring to a diagram C and a diagram D in figure 1, filling and recessing the digital intraoral model, reserving an adhesive space, referring to a diagram E in figure 1, determining the direction of a channel, referring to a diagram F in figure 1, designing a band, referring to a diagram G in figure 1, designing a wire loop, referring to a diagram H in figure 1, wherein the thickness of the band is designed to be 0.5-1.0mm, the width of the band is designed according to the Shape, the emergence condition and the like of a Dental crown, and avoiding occlusion contact points, the width is generally designed to be 2-3mm, in addition, according to the type of the adhesive, a space of 0-100 mu m is reserved in the thickness direction, and finally, various variables such as support points and the like are designed, completing the design and checking the occlusion, see figures I and J of figure 1;
s3: the PEEK/PEKK material is combined with a digital model of the digital clearance retainer, and the fixed clearance retainer is manufactured by cutting a PEEK/PEKK base material by Wieland si cutting equipment.
S4: a corresponding resin mold was produced based on a digitized model of the patient's mouth, the produced fixed type space holder was fitted on the resin mold, the accuracy of the space holder and the adhesion between the space holder and the resin mold were checked, referring to fig. 2, the space holder was adjusted, positioned and polished, and the production of the space holder was completed.
The embodiment also provides a wearing method of the digital space maintainer, which comprises the following steps:
s1: carrying out acid etching treatment on the annular tissue surface of the space retainer for 5s by adopting 98% concentrated sulfuric acid, then washing with running water, and drying;
s2: link is coated on the ring-shaped tissue surface of the space retainer, light blowing is carried out after 10s, resin adhesive is uniformly coated after photocuring is carried out for 90s, photocuring is carried out for 20s after 10s,
s3: the abutment corresponding to the space retainer is isolated from moisture, then 37% orthophosphoric acid is used for acid etching on the belt ring contact surface of the abutment for 30s, then the abutment is washed by running water, isolated from moisture and dried, then the adhesive is coated on the acid etching surface of the abutment, and after 10s, the abutment is photocured for 20 s;
s4: coating the resin cement on the ring-shaped tissue surface of the space retainer, then wearing the space retainer on the corresponding abutment, performing photocuring for 2s after pressing in place, removing redundant resin cement, and performing photocuring for 20s, referring to fig. 3;
s5: through occluding paper inspection interlock, guarantee that the patient does not have the interlock interference, accomplish wearing of clearance retainer to the prescription patient is regularly repeated the diagnosis, and the degree of closure of inspection retainer is not hard up, is fallen off or the damage condition, wears whether comfortable, whether be convenient for clean, and the clearance maintenance condition.
The ring wire ring type space maintainer in the fixed space maintainer is prepared in the embodiment, and the preparation principles of the rest full crown wire ring type space maintainers, the tongue bow type space maintainers and the Nance bow type space maintainers are the same, and only the structures of the space maintainers are slightly different, so that the space maintainers are not listed.
Example 2:
the present embodiment provides a method for manufacturing a digital gap retainer, which is a movable (functional) gap retainer, and comprises the following steps:
s1: scanning the oral cavity of a patient by using an oral scanner, acquiring digital models of the upper jaw and the lower jaw of the patient, and acquiring a bite relation, and referring to fig. 4;
s2: based on the acquired digital model, uploading the scanned digital intraoral model to a digital processing center, using 3Shape Dental Manager Client design software to remove a local denture design module for design, finishing the digital intraoral model, determining the direction of a positioning channel, designing a snap ring arm into an undercut, designing the tooth form of an edentulous area, having various variables such as occlusion contact points and support point design on jaw teeth, and finally completing design and checking occlusion, wherein the designed digital model of the movable (functional) space retainer is shown in fig. 5;
s3: the PEEK/PEKK material is applied, and the digital repairing body model of the digital gap retainer is combined, and the movable (functional) gap retainer is manufactured by printing through a 3D printing technology, and the movable (functional) gap retainer is shown in figure 6.
S4: the method includes the steps of manufacturing a corresponding resin model according to a digital model in the oral cavity of a patient, trying the manufactured movable (functional) space retainer on the resin model, checking the accuracy of the space retainer and the adhesion between the space retainer and the resin model, adjusting the space retainer, positioning and polishing the space retainer, and manufacturing the space retainer.
When wearing, movable (functional) space keeper only needs to wear the belt ring directly on corresponding abutment, see fig. 8, through interlock paper inspection interlock after wearing, guarantees that the patient does not have the interlock interference, accomplishes wearing of space keeper to the prescription patient is regularly reviewed, and the artificial tooth wearing and tearing or the damaged condition of inspection keeper wear whether comfortable, whether be convenient for clean, and the condition is maintained in the clearance.
Movable (functional) space maintainer not only wears very conveniently, and convenient to detach washs after having a dinner the detachable moreover, guarantees space maintainer's cleanness, and in addition, movable (functional) space maintainer is last to have the tooth body that 3D printed, can resume the interlock relation when maintaining the clearance, improves chewing efficiency.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. A method of making a digitized space holder, comprising: the method comprises the following steps:
s1: scanning the oral cavity of a patient by using an oral scanner, acquiring digital models of the upper jaw and the lower jaw of the patient, and acquiring a bite relation;
s2: designing a digital model of the digital clearance retainer by combining digital design software based on the acquired digital internal model;
s3: the lash holders were fabricated using PEEK/PEKK material in combination with a digital model of the digital lash holder.
2. The method of claim 1, wherein the digital space holder is made by: the specific design steps of the digitized model of the digitized space maintainer in the S2 are as follows:
s1: uploading the scanned digital internal model to a digital processing center, designing by using 3Shape dental manager Client, finishing the digital internal model, filling the concave of the digital internal model, reserving an adhesive space, and determining the direction of a positioning channel;
s2: designing a belt ring;
s3: designing a wire loop;
s4: and checking the occlusion condition after the design is finished.
3. The method of claim 1, wherein the digital space holder is made by: the space holder in S3 is manufactured by cutting a substrate with a cutting device or by printing with a 3D printing technique.
4. The method of claim 1, wherein the digital space holder is made by: the scanner in the S1 adopts a scanner with the model number of 3shape D2000.
5. A method of using the digital appliance of any one of claims 1 to 4, wherein: the method comprises the following steps:
s1: treating the tissue surface of the digital appliance by adopting concentrated sulfuric acid for 5s, and blowing to dry after flushing by running water;
s2: uniformly coating visio.link on the tissue surface of the digital appliance, slightly blowing after 10s, and photocuring for 90 s;
s4: performing acid etching on the abutment bonding surface corresponding to the digital appliance by using orthophosphoric acid for 30s, then washing by running water, drying by moisture insulation, coating an adhesive on the bonding surface of the abutment, and performing photocuring for 20s after 10 s;
s3: uniformly coating a resin adhesive on the texture surface of the digital appliance, and performing photocuring for 20s after 10 s;
s5: placing the resin cement coated door on the tissue surface of the digital appliance, then wearing the digital appliance on the corresponding abutment, removing the redundant resin cement coated door after photocuring for 2s, and then photocuring for 20s to complete the wearing of the digital appliance.
6. A wearing method based on the digital space holder according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
s1: carrying out acid etching treatment on the annular tissue surface of the space retainer for 5s by adopting 98% concentrated sulfuric acid, then washing with running water, and drying;
s2: link is coated on the ring-shaped tissue surface of the space retainer, light blowing is carried out after 10s, resin adhesive is uniformly coated after photocuring is carried out for 90s, photocuring is carried out for 20s after 10s,
s3: the abutment corresponding to the space retainer is isolated from moisture, then 37% orthophosphoric acid is used for acid etching on the belt ring contact surface of the abutment for 30s, then the abutment is washed by running water, isolated from moisture and dried, then the adhesive is coated on the acid etching surface of the abutment, and after 10s, the abutment is photocured for 20 s;
s4: coating the resin cement gate on a ring belt tissue surface of the space retainer, then wearing the space retainer on a corresponding abutment, pressing the space retainer in place, performing photocuring for 2s, removing redundant resin cement gate, and performing photocuring for 20 s;
s5: the occlusion is checked through occlusion paper, so that the patient is ensured to have no occlusion interference, and the wearing of the space retainer is completed.
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| CN111888022A (en) * | 2020-08-11 | 2020-11-06 | 长沙博谱科学仪器有限公司 | One-step forming manufacturing method of false tooth |
| CN113499152A (en) * | 2021-05-28 | 2021-10-15 | 南京精益义齿有限公司 | Machining process of pre-collision clearance retainer |
| CN113499152B (en) * | 2021-05-28 | 2022-08-09 | 南京精益义齿有限公司 | Machining process of pre-collision clearance retainer |
| CN116172735A (en) * | 2023-04-27 | 2023-05-30 | 北京大学口腔医学院 | Positioning type Nance bow orthodontic molar control device and manufacturing method |
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