CN114699196A - Design method of accurate false tooth and false tooth thereof - Google Patents
Design method of accurate false tooth and false tooth thereof Download PDFInfo
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- CN114699196A CN114699196A CN202210209098.6A CN202210209098A CN114699196A CN 114699196 A CN114699196 A CN 114699196A CN 202210209098 A CN202210209098 A CN 202210209098A CN 114699196 A CN114699196 A CN 114699196A
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- denture
- zirconia
- precise
- false tooth
- designing
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 210000004513 dentition Anatomy 0.000 claims abstract description 13
- 230000036346 tooth eruption Effects 0.000 claims abstract description 13
- 238000007639 printing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 52
- 238000000227 grinding Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 1
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000010146 3D printing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- 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
-
- 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
- A61C13/083—Porcelain or ceramic teeth
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses a design method of a precise denture and the denture thereof, relating to the technical field of denture design, in particular to a design method of the precise denture and the denture thereof, comprising the following steps: s1, directly scanning the prepared dentition including the prepared pile by an intraoral scanner to obtain three-dimensional data of the dentition and information of adjacent teeth and opposite jaw teeth; s2, according to the three-dimensional data of the dentition and the post, designing and modeling a repaired dental crown, namely a false tooth, and slicing the three-dimensional data of the false tooth to form an STL file; and S3, transmitting the STL data to a 3D printer control system, and printing the repaired accurate denture model by using the laser rapid prototyping SLA through the light-cured resin material. The invention saves the great inconvenience brought to the patient by the complicated process of repeated impression taking; the prosthesis has high precision and meets the occlusion relation after repair; the formed part has high density and surface quality, and has the mechanical strength and mechanical performance required by normal dental crowns.
Description
Technical Field
The invention relates to the technical field of denture design, in particular to a design method of an accurate denture and the denture.
Background
Porcelain teeth, medically known as "denture repairs", are simply formed by grinding the entire tooth a little to form a post (known as a preparation or preparation of the tooth) and placing a white porcelain crown over the post. The denture repair procedure comprises (1) grinding the teeth: in order to ensure that the false tooth does not exceed the external dimension of the original natural tooth after being worn, the natural tooth needs to be partially ground to form a pile. Secondly, in order to allow the denture to be smoothly seated and to obtain good retention, the post needs to be prepared in a certain shape. (2) Taking a mold: firstly, taking a rough printing die, namely taking a rough printing die by using silica gel as a rough body, trimming the inverted concave part and trimming an overflow channel; and taking a fine impression, namely taking the fine impression by using the silica gel fine body. In addition, jaw records are needed for the manufacturing factory to master dynamic jaw relationships to design crowns.
At present, the manufacture of the prosthesis false tooth in the field of oral repair is manually operated by a doctor, which consumes long time and needs repeated impression taking. The pile model obtained after mould taking has the following disadvantages: (1) the quality of gypsum is poor, and the impression tissue surface is rough due to excessive particles; (2) insufficient impression margin due to improper tray selection; (3) bubbles are formed due to improper mixing method; (4) the impression material is separated from the tray due to improper methods for taking the impression out of the mouth, such as over-force; (5) errors due to the patient's own factors. Since the prosthetic appliance is designed according to the abutment model, the above problems of the abutment will result in the designed prosthetic appliance not being matched with the abutment. In order to make the denture fit smoothly, the post or the denture needs to be ground. The experience of the doctor is completely relied on in the polishing, does not have the reference standard, if polish excessively, can influence the driving fit of stake and artificial tooth, also can lead to local position inner crown to support inadequately to cause the artificial tooth to appear in patient's mouth frequently and break up porcelain phenomenon, bring loss and puzzlement for patient and clinic.
In order to reduce the jaw adjusting difficulty of the final prosthesis, save clinical time and improve the repairing accuracy, more and more attention is paid to designing a denture crown by using a digital technology and manufacturing an individualized denture by using a 3D printing technology, and ceramic 3D printing technologies of various principles are rapidly emerging. However, due to the particularity of ceramic materials, many difficulties are brought to the application of 3D printing technology, which are mainly reflected in: (1) the preparation, the fluidity and the stability of the forming raw material with high ceramic content are difficult to control; (2) shrinkage, cracking, time consumption and ceramic part precision errors caused by post-treatment (degreasing, sintering and the like); (3) the laying and the strickling of the ultrathin layer material are difficult to arrange; (4) fine hard particles in the ceramic material cause obstacles of a movement mechanism; (5) imported ceramic 3D printers and materials are expensive. Therefore, the ceramic denture manufactured by using the 3D printing technology needs to be improved in compactness, surface quality and accuracy, and the mechanical strength and mechanical performance required by the natural dental crown are difficult to obtain, so that a design method of the accurate denture and the denture are provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a design method of a precise denture and the denture, and solves the problems in the background technology.
In order to realize the purpose, the invention is realized by the following technical scheme: a design method of a precise denture and the denture thereof comprise the following steps:
s1, directly scanning the prepared dentition including the prepared pile by an intraoral scanner to obtain dentition three-dimensional data and information of adjacent teeth and opposite jaw teeth;
s2, designing and modeling the repaired dental crown, namely the false tooth according to the three-dimensional data of the dentition and the post, and slicing the three-dimensional data of the false tooth to form an STL file;
and S3, transmitting the STL data to a 3D printer control system, and printing the repaired accurate denture model by using the laser rapid prototyping SLA through the light-cured resin material.
Optionally, the zirconia denture is processed by using the zirconia block according to the precise denture model designed in step S3 by using a profiling principle or profiling in machining, and then sintered in a sintering furnace.
Optionally, in contrast to the denture model printed in step S3, the precise denture model obtained in step S3 is precisely carved, an individualized denture is designed, and a finished product of the individualized precise denture model is obtained through post-processing.
Alternatively, the post of the patient may change during the period of designing the denture, so that the denture model printed in step S3 is tried on the post before wearing the denture, and if not, the teeth are polished in a targeted manner.
Optionally, the preparation method of the zirconia denture comprises the following steps: and (3) preparing the zirconia powder into blocky zirconia by grouting or hot-press casting, and processing the blocky zirconia according to the shape design of the false tooth by a profiling mold and grinding to finish the zirconia crown.
A denture is prepared by adopting light-cured resin to prepare a denture model based on SLA printing technology.
Optionally, the denture is made of zirconia.
The invention provides a design method of an accurate denture and the denture, which has the following beneficial effects:
the invention saves the great inconvenience brought to the patient by the complicated process of repeated impression taking; the prosthesis has high precision and meets the occlusion relation after repair; the formed part has high density and surface quality, and has the mechanical strength and mechanical performance required by normal dental crowns; the material waste caused by repeated impression taking in the traditional dental crown making process is reduced, and the problem of high cost of imported ceramic 3D printers and expensive materials is also avoided.
Drawings
FIG. 1 is a schematic view of the actual dentition of a patient in accordance with the present invention;
FIG. 2 is a schematic view of a polished abutment structure according to the present invention;
FIG. 3 is a schematic structural diagram of a denture model prepared by using a light-cured resin based on SLA printing technology according to the present invention;
FIG. 4 is a schematic view of the structure of the bulk zirconia of the present invention;
FIG. 5 is a schematic view of the structure of a zirconia crown according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Embodiment 1, the present invention provides a method for designing a precise denture, comprising the steps of:
s1, directly scanning the prepared dentition including the prepared pile by an intraoral scanner to obtain three-dimensional data of the dentition and information of adjacent teeth and opposite jaw teeth;
s2, according to the three-dimensional data of the dentition and the post, designing and modeling a repaired dental crown, namely a false tooth, and slicing the three-dimensional data of the false tooth to form an STL file;
and S3, transmitting the STL data to a 3D printer control system, and printing the repaired accurate denture model by using the laser rapid prototyping SLA through the light-cured resin material.
More preferably, the zirconia denture is processed by using the zirconia block according to the precise denture model designed in step S3 by using a copying principle or a copying process in machining, and then sintered in a sintering furnace.
Preferably, the denture model printed in the step S3 is precisely carved on the precise denture model obtained in the step S3, and a personalized denture is designed, and then is processed in a post-processing manner, so as to obtain a finished product of the personalized precise denture model.
Further preferably, the post of the patient may be changed during the time period for designing the denture, so that the denture model printed in step S3 is tried on the post before wearing the denture, and if not suitable, the teeth are polished in a targeted manner.
As shown in fig. 1 to 5, a denture, based on the SLA printing technique, is fabricated by using a light-curable resin to fabricate a denture model, which is fabricated by using zirconia;
the preparation method of the zirconia denture comprises the following steps: and (3) preparing the zirconia powder into blocky zirconia by grouting or hot-press casting, and processing the blocky zirconia according to the shape design of the false tooth by a profiling mold and grinding to finish the zirconia crown.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. A design method of a precise denture comprises the following steps:
s1, directly scanning the prepared dentition including the prepared pile by an intraoral scanner to obtain dentition three-dimensional data and information of adjacent teeth and opposite jaw teeth;
s2, designing and modeling the repaired dental crown, namely the false tooth according to the three-dimensional data of the dentition and the post, and slicing the three-dimensional data of the false tooth to form an STL file;
and S3, transmitting the STL data to a 3D printer control system, and printing the repaired accurate denture model by using the laser rapid prototyping SLA through the light-cured resin material.
2. The method of claim 1, wherein the zirconia denture is manufactured by using the zirconia block according to the precise denture model designed in step S3 by using a copying principle or a copying principle in machining, and then the zirconia denture is sintered in a sintering furnace.
3. The method for designing the precise denture, according to claim 1, wherein the precise denture model obtained in step S3 is precisely carved according to the denture model printed in step S3, and the personalized denture is designed, processed later and a finished product of the personalized precise denture model is obtained.
4. The method for designing a precise denture according to claim 1, wherein the post of the patient may change during the period of designing the denture, so that the denture model printed in step S3 is tried on the post before wearing the denture, and if not, the teeth are polished in a targeted manner.
5. The method for designing a fine denture as claimed in claim 2, wherein the method for preparing a zirconia denture comprises the following steps: and (3) preparing the zirconia powder into blocky zirconia by grouting or hot-press casting, and processing the blocky zirconia according to the shape design of the false tooth by a profiling mold and grinding to finish the zirconia crown.
6. A denture, characterized in that a denture model is prepared using a photocurable resin based on SLA printing technique.
7. A denture according to claim 5, wherein: the false tooth is prepared and formed by adopting zirconium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209098.6A CN114699196A (en) | 2022-03-04 | 2022-03-04 | Design method of accurate false tooth and false tooth thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210209098.6A CN114699196A (en) | 2022-03-04 | 2022-03-04 | Design method of accurate false tooth and false tooth thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114699196A true CN114699196A (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210209098.6A Pending CN114699196A (en) | 2022-03-04 | 2022-03-04 | Design method of accurate false tooth and false tooth thereof |
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| CN (1) | CN114699196A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6527550B1 (en) * | 2000-02-15 | 2003-03-04 | Victor J. Hajjar | Apparatus and method for producing a dental prosthetic with a device having a linear rotary bearing |
| US20060154211A1 (en) * | 2005-01-12 | 2006-07-13 | Bybee Larry W | Prefabricated pediatric crowns and method of producing prefabricated pediatric crowns |
| DE102008022575A1 (en) * | 2008-03-28 | 2009-10-01 | Dialog Zahntechnik Gmbh | Method for producing dental workpieces e.g. abutment of a dental implant by a copy milling unit, comprises determining the dimensions of the workpiece by scanning a model and then transferring to molded blank by a rotary machine tool |
| RU2532368C1 (en) * | 2013-09-20 | 2014-11-10 | Сергей Дарчоевич Арутюнов | Method for making releasing postoperative maxillofacial prosthesis |
| CN104367389A (en) * | 2014-11-19 | 2015-02-25 | 上海上远齿科技术有限公司 | Denture data processing and three-dimensional printing system |
| CN104434329A (en) * | 2014-08-12 | 2015-03-25 | 杭州而然科技有限公司 | Milling forming production method of dental all-ceramic restoration |
| CN106580496A (en) * | 2016-11-18 | 2017-04-26 | 中国人民解放军第四军医大学 | Synchronous line fixing-moving joint restoration method |
| CN110269706A (en) * | 2019-06-26 | 2019-09-24 | 深圳牙领科技有限公司 | A kind of digitized manufacturing system method of artificial tooth |
| CN110638543A (en) * | 2019-11-05 | 2020-01-03 | 江苏福隆数齿科技有限公司 | False tooth processing technology using resin working model |
| CN113116570A (en) * | 2021-03-25 | 2021-07-16 | 上海浩涟科技发展有限公司 | False tooth processing technology using resin working model |
-
2022
- 2022-03-04 CN CN202210209098.6A patent/CN114699196A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6527550B1 (en) * | 2000-02-15 | 2003-03-04 | Victor J. Hajjar | Apparatus and method for producing a dental prosthetic with a device having a linear rotary bearing |
| US20060154211A1 (en) * | 2005-01-12 | 2006-07-13 | Bybee Larry W | Prefabricated pediatric crowns and method of producing prefabricated pediatric crowns |
| DE102008022575A1 (en) * | 2008-03-28 | 2009-10-01 | Dialog Zahntechnik Gmbh | Method for producing dental workpieces e.g. abutment of a dental implant by a copy milling unit, comprises determining the dimensions of the workpiece by scanning a model and then transferring to molded blank by a rotary machine tool |
| RU2532368C1 (en) * | 2013-09-20 | 2014-11-10 | Сергей Дарчоевич Арутюнов | Method for making releasing postoperative maxillofacial prosthesis |
| CN104434329A (en) * | 2014-08-12 | 2015-03-25 | 杭州而然科技有限公司 | Milling forming production method of dental all-ceramic restoration |
| CN104367389A (en) * | 2014-11-19 | 2015-02-25 | 上海上远齿科技术有限公司 | Denture data processing and three-dimensional printing system |
| CN106580496A (en) * | 2016-11-18 | 2017-04-26 | 中国人民解放军第四军医大学 | Synchronous line fixing-moving joint restoration method |
| CN110269706A (en) * | 2019-06-26 | 2019-09-24 | 深圳牙领科技有限公司 | A kind of digitized manufacturing system method of artificial tooth |
| CN110638543A (en) * | 2019-11-05 | 2020-01-03 | 江苏福隆数齿科技有限公司 | False tooth processing technology using resin working model |
| CN113116570A (en) * | 2021-03-25 | 2021-07-16 | 上海浩涟科技发展有限公司 | False tooth processing technology using resin working model |
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Application publication date: 20220705 |