CN113520631A - Method for manufacturing color-masking veneers in oral crowns - Google Patents
Method for manufacturing color-masking veneers in oral crowns Download PDFInfo
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- CN113520631A CN113520631A CN202110706752.XA CN202110706752A CN113520631A CN 113520631 A CN113520631 A CN 113520631A CN 202110706752 A CN202110706752 A CN 202110706752A CN 113520631 A CN113520631 A CN 113520631A
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- abutment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/30—Securing inlays, onlays or crowns
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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
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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
- A61C13/0006—Production methods
- A61C13/0019—Production methods using three dimensional printing
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- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses a method for manufacturing a color masking veneering in an oral crown, which is characterized in that the color masking veneering is manufactured by utilizing a 3D printing technology based on a digital optical scanner and false tooth design software, the color masking veneering uses a low-transmittance ceramic material, and the color masking veneering is in place on an abutment preparation body by designing the veneering range of a digital abutment model and crystallizing after the 3D printing technology is completely positioned, so that a discolored tooth body is masked, and the full crown repair of a high-transmittance all-ceramic material is facilitated. The veneering prepared by the method expands the clinical application range of high-permeability ceramic materials such as glass ceramics and the like, enhances the strength of the restoration body, and improves the patient experience and satisfaction.
Description
Technical Field
The application relates to the field of oral repair treatment, in particular to a manufacturing method of a veneer.
Background
The oral clinical restoration treatment of the marrow-removed teeth or the discolored dead teeth in the American region usually adopts a metal ceramic full crown or a low-pass oxide ceramic heightened transparent modified ceramic full crown with color shading effect. The full crown prosthesis is made of two different materials, and the two materials are combined through a special sintering process. The combined interface becomes a weak part of the full crown prosthesis, so that the full crown prosthesis is damaged clinically. In addition, the strength of the modified porcelain is far lower than that of oxide ceramics, glass ceramics and the like. The surface strength of the prosthesis is not high.
The metal ceramic full crown or low-pass transparent oxide ceramic heightened transparent modified ceramic full crown has multiple manufacturing procedures, the technical sensitivity in the manufacturing process is strong, and the factors directly cause huge difference of the quality of the restoration and long manufacturing period. In addition, the decoration porcelain is finished by manual plastic stacking and sintering, and mirror image copying and manufacturing in computer aided design are difficult to realize. The double-layer composite crown used for the posterior teeth can not be used in the anterior teeth area clinically.
The above problems make the repair of aesthetic areas consistent as a clinical treatment challenge. The whole glass ceramic crown capable of being cut is integrally cut, and the problems of the whole crown are solved. However, the range of clinical applications of glass ceramics has been limited because of its high permeability.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for manufacturing a veneer, which can shade the color of the depithed teeth or the discolored dead pulp teeth in the aesthetic region.
The technical scheme adopted by the invention is as follows:
a method for manufacturing the color-masking veneering in the whole oral crown is characterized by comprising the following steps:
s1, obtaining a digital three-dimensional model of the crown preparation body by the abutment preparation body after shoulder trimming through an oral scanner;
s2, guiding the digital three-dimensional model into oral cavity computer aided design software, automatically generating a color shading overlay by utilizing the oral cavity computer aided design software, and adjusting the shape of the color shading overlay to be consistent with the shape of the abutment;
s3, sending the designed color shading veneers to a computer aided manufacturing unit, and printing the color shading veneers by a printer in a 3D mode;
s4, positioning the printed shading overlay at the corresponding position of the abutment of the solid model and fixing, and optically scanning again to obtain abutment data with the shading overlay;
s5, after the design of the abutment data full crown restoration body is completed in the oral cavity computer aided design software, the full crown manufacturing is completed by the computer aided manufacturing unit.
In step S2, after the veneering restoration is selected by the computer aided design software for the portal cavity of the digital model, the position of the veneering termination line needs to be drawn on the labial side of the abutment.
The range of the stop line is enlarged by 0.5-1mm according to the discoloration range of the abutment shown in the photograph or other data provided by the doctor, and no special range can comprise the labial side of the abutment and the near and far middle turning angles.
The veneering termination line is 1-2mm close to the labial shoulder and cannot contact the shoulder.
The solid model is a plaster model prepared in a traditional mould taking mode or a resin model printed by a digital three-dimensional model obtained by S1.
In step S1, the plaster model may be prepared by a conventional model taking method, and then converted into a three-dimensional digital model by the oral CAD/CAM software and the warehouse scanning device.
Preferably, in step S3, the color mask overlay is printed by additive printing or subtractive printing.
Preferably, in step S4, the model with the color masking overlay is optically scanned using an intraoral scanning device.
Preferably, in step S3, the color mask is made of zirconia or glass ceramic with low transparency.
Preferably, in step S5, the full crown is made of a high-permeability glass ceramic.
The invention has the technical effects that:
1. the in-crown color-masking veneering prepared by the 3D printing technology based on the three-dimensional scanner of the oral technician and the false tooth design software is matched with the digital and three-dimensional printing technology, and the printed veneering is positioned at the color-changing part of the affected tooth to change the background color of the abutment, thereby expanding the clinical aesthetic treatment range of the glass ceramic.
2. The invention creatively arranges the color shading veneers inside the whole crown by the oral CAD/CAM technology, realizes the color shading of the abutment, reduces the technical sensitivity of the whole crown restoration in the aesthetic region, and improves the strength and the treatment efficiency of the restoration in the aesthetic region.
Drawings
The invention will be further described with reference to the accompanying drawings, which are only schematic illustrations and illustrations of the invention, and do not limit the scope of the invention.
FIG. 1 is a schematic flow diagram of the process of the present invention.
Detailed Description
The following detailed description is given with reference to specific examples, but the scope of the present invention is not limited by the specific embodiments.
As shown in figure 1, the invention provides a method for manufacturing the oral restoration full-crown internal shading veneering, which comprises the following steps:
s1, obtaining a digital three-dimensional model of the crown preparation body by the abutment preparation body after shoulder trimming through an oral scanner; the crown restoration preparation gypsum model can be prepared in a traditional model taking mode, and then the crown restoration preparation gypsum model is converted into a digital three-dimensional model by utilizing scanning equipment;
s2, guiding the digital model into oral cavity Computer Aided Design (CAD) software to select a veneering restoration body, and drawing the position of a veneering termination line on the labial side of the abutment;
wherein, the range of the stop line is enlarged by 0.5-1mm according to the color change range of the abutment shown in the picture or other data provided by the doctor, and no special range can comprise the labial side of the abutment and the near and far middle corners; the veneering termination line is 1-2mm close to the labial shoulder and can not contact the shoulder;
s3, after the software automatically generates the veneering, adjusting the shape of the veneering to be consistent with the shape of the abutment;
s4, sending the designed shading overlay data to a Computer Aided Manufacturing (CAM) unit, and printing the shading overlay by using a 3D printer;
the printing in the step can be powder slurry additive printing or cutting subtraction printing; wherein the color-masking facing is made of zirconia or glass ceramics with low transparency;
s5, positioning the finished shading veneers at the corresponding positions of the abutment of the solid model and fixing, and optically scanning again to obtain abutment data with the shading veneers; the solid model can be a plaster model prepared in a traditional mould taking mode, and can also be a resin model printed by a resin printer by utilizing a digital three-dimensional model in S1;
the optical scanning of this step employs an intraoral scanning device;
and S6, completing the design of the abutment data full crown restoration in CAD software by using a conventional method, and then completing the full crown production by using a CAM unit.
In this step, the whole crown is made of high-permeability glass ceramic.
The invention relates to an in-crown color-masking veneering prepared by utilizing a 3D printing technology based on a three-dimensional scanner of an oral technician and false tooth design software, wherein the technology is matched with a digital and three-dimensional printing technology, and the printed veneering is in place at a color-changing part of an affected tooth to change the background color of an abutment and expand the clinical aesthetic treatment indication of glass ceramic.
The invention creatively arranges the color shading veneers inside the whole crown by the oral CAD/CAM technology, realizes the color shading of the abutment, reduces the technical sensitivity of the whole crown restoration in the aesthetic region, and improves the strength and the treatment efficiency of the restoration in the aesthetic region.
The foregoing embodiments illustrate and describe the principles and general features of the present invention and its advantages. It will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are given by way of illustration of the principles of the invention and are not to be taken as limiting the scope of the invention in any way, and that various changes and modifications may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A method for manufacturing the color-masking veneering in the whole oral crown is characterized by comprising the following steps:
s1, obtaining a digital three-dimensional model of the crown preparation body by the abutment preparation body after shoulder trimming through an oral scanner;
s2, guiding the digital three-dimensional model into oral cavity computer aided design software, automatically generating a color shading overlay by utilizing the oral cavity computer aided design software, and adjusting the shape of the color shading overlay to be consistent with the shape of the abutment;
s3, sending the designed color shading veneers to a computer aided manufacturing unit, and printing the color shading veneers by a printer in a 3D mode;
s4, positioning the printed shading overlay at the corresponding position of the abutment of the solid model and fixing, and optically scanning again to obtain abutment data with the shading overlay;
s5, after the design of the abutment data full crown restoration body is completed in the oral cavity computer aided design software, the full crown manufacturing is completed by the computer aided manufacturing unit.
2. The method for manufacturing the color-masking overlay in whole crown of oral cavity according to claim 1, wherein in step S2, after the digitalized model is introduced into the oral cavity computer aided design software to select the overlay prosthesis, the position of the overlay termination line needs to be drawn on the labial side of the abutment.
3. The method for making the color-masking overlay for the whole crown of the oral cavity according to claim 2, wherein the range of the stop line is enlarged by 0.5-1mm according to the color-changing range of the abutment shown in the photograph or other data provided by the physician, and no special range can include the labial side of the abutment and the near and far middle corners.
4. The method for manufacturing the oral full crown internal shading facing as claimed in claim 3, wherein the facing termination line is 1-2mm near the labial shoulder and cannot contact the shoulder.
5. The method for making the oral full crown interior shading overlay according to claim 1, wherein the solid model is a plaster model prepared by a traditional mold taking method or a resin model printed by a digital three-dimensional model obtained by S1.
6. The method of claim 1, wherein in step S1, the plaster model is prepared by traditional model-taking method, and then converted into three-dimensional digital model by CAD/CAM software and warehouse scanning device.
7. The method of claim 1, wherein in step S3, the color mask is printed by additive powder printing or subtractive cutting printing.
8. The method of claim 1, wherein in step S4, the model with the color mask is optically scanned using an intraoral scanning device.
9. The method of claim 1, wherein in step S3, the color masking overlay is made of low transparency zirconia or glass ceramic.
10. The method of claim 1 wherein in step S5, said full crown is made of a highly transparent glass-ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110706752.XA CN113520631B (en) | 2021-06-24 | 2021-06-24 | Method for manufacturing color-shading veneering in oral crown |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110706752.XA CN113520631B (en) | 2021-06-24 | 2021-06-24 | Method for manufacturing color-shading veneering in oral crown |
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| CN113520631A true CN113520631A (en) | 2021-10-22 |
| CN113520631B CN113520631B (en) | 2022-06-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120156651A1 (en) * | 2010-12-20 | 2012-06-21 | Levi Jack | Restoration of anterior endodontically treated teeth |
| CN107961091A (en) * | 2018-01-04 | 2018-04-27 | 北京圣爱吉友和义齿制作有限公司 | A kind of baking-ceramic tooth manufacture craft |
| CN109091252A (en) * | 2018-09-14 | 2018-12-28 | 浙江迅实科技有限公司 | A kind of processing method of 3D printing ceramics veneer |
| CN109998705A (en) * | 2019-04-03 | 2019-07-12 | 南京市口腔医院 | A kind of oral cavity porcelain veneer is precisely bonded guide plate and preparation method thereof |
| CN112006789A (en) * | 2020-08-11 | 2020-12-01 | 杭州雅齿美口腔科技有限公司 | Composite ceramic veneering process |
-
2021
- 2021-06-24 CN CN202110706752.XA patent/CN113520631B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120156651A1 (en) * | 2010-12-20 | 2012-06-21 | Levi Jack | Restoration of anterior endodontically treated teeth |
| CN107961091A (en) * | 2018-01-04 | 2018-04-27 | 北京圣爱吉友和义齿制作有限公司 | A kind of baking-ceramic tooth manufacture craft |
| CN109091252A (en) * | 2018-09-14 | 2018-12-28 | 浙江迅实科技有限公司 | A kind of processing method of 3D printing ceramics veneer |
| CN109998705A (en) * | 2019-04-03 | 2019-07-12 | 南京市口腔医院 | A kind of oral cavity porcelain veneer is precisely bonded guide plate and preparation method thereof |
| CN112006789A (en) * | 2020-08-11 | 2020-12-01 | 杭州雅齿美口腔科技有限公司 | Composite ceramic veneering process |
Non-Patent Citations (1)
| Title |
|---|
| 孙佳麒等: "《不同表面处理对椅旁瓷块CEREC Blocs贴面色彩的影响》", 《中国组织工程研究》 * |
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| CN113520631B (en) | 2022-06-28 |
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