CN101273921B - Method for producing macromolecule orthodontic tooth crown - Google Patents
Method for producing macromolecule orthodontic tooth crown Download PDFInfo
- Publication number
- CN101273921B CN101273921B CN2007100183981A CN200710018398A CN101273921B CN 101273921 B CN101273921 B CN 101273921B CN 2007100183981 A CN2007100183981 A CN 2007100183981A CN 200710018398 A CN200710018398 A CN 200710018398A CN 101273921 B CN101273921 B CN 101273921B
- Authority
- CN
- China
- Prior art keywords
- angle
- tooth
- tooth model
- model
- fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention relates to a manufacturing method of a polymer orthodontic bracket, which has high precision, low production cost, convenient usage and can be removed during the using process. The manufacturing method comprises the following operation steps: (1) a dental model is precisely duplicated and carried out the segmentation; (2) the dental model after the segmentation is reduced and arranged on a fixed object; (3) the precise adjustment of the position and the angle of a tooth after the segmentation is realized by using the automatic or manual method via the change of the physical state or the shape of the fixed object of the dental model; (4) the quality detection and the control of a closed loop are implemented by comparing the pre-adjusted position and the angle with the actual measurement position and the angle of the tooth; (5) the film pressing is carried out on the dental model after checking the angle and the position.
Description
One, technical field:
The present invention relates to the manufacture method of orthodontic tooth crown, especially relate to the manufacture method of macromolecule orthodontic tooth crown.
Two, background technology:
Traditional orthodontic procedure uses devices such as bracket, arc silk, and the big foreign body sensation of its size is strong, and patient wear is uncomfortable; Very big with the color of teeth contrast, attractive in appearance inadequately; During whole treatment, can not extract, be easy to generate tartar, the infringement enamel, corner angle are many, at dental surface accumulation foreign body, are not easy to again carry out oral cavity cleaning easily, are unfavorable for oral hygiene.Along with the extensive use in just abnormal field of computer technology and new manufacturing process, the plastics facing is orthopedic to begin to be accepted by just abnormal field and patient at US and European in recent years.
The orthopedic advantage of plastics facing has: attractive in appearance, can win, health, quantitatively, can improve just abnormal doctor's work efficiency; But on technology and production technology, still there are some rooms for improvement at employed orthodontic tooth crowns in ground such as the Europe and the U.S. at present, as manufacture method, product precision, cost of manufacture, gauge and quality inspection means or the like.
Three, summary of the invention:
The present invention is in order to solve the weak point in the above-mentioned background technology, macromolecule orthodontic tooth crown has been proposed the brand-new technology system, created that a whole set of is perfect, with the diverse manufacture method of existing method and production technology, the precision that has improved product and therapeutic effect, reduced production cost, and initiated the quality detecting method of closed loop in the orthodontic tooth crown field.
The method that existing plastics facing adopts is: at first, utilize three-dimensional light curing molding fabrication techniques to go out the full jaw tooth model of a series of tooth positions through adjusting; Then, the mode of thermoplastic plastic sheet with malleation or negative pressure is compressed on the full jaw tooth model; After the cooling, the pruning through suitable obtains a series of facings.The key technology of producing is exactly how to obtain the full jaw tooth model of a series of tooth positions through adjusting accurately.
A kind of manufacture method of macromolecule orthodontic tooth crown is characterized in that comprising following operating procedure:
(1) precision is duplicated tooth model and is carried out cutting;
(2) reduction of the tooth model after the cutting is arranged on the fixture;
(3) by changing the states of matter or the shape of tooth model fixture, the tooth model position after the method realization cutting of use automatic or manual and the accurate adjustment of angle;
(4) by the comparison of tooth model expection adjustment position, angle and absolute fix, angle, implement the quality testing and the control of closed loop;
(5) check after angle and the position, on tooth model, carry out press mold;
Wherein, the change method of tooth model position and angle is: the position of model teeth and angle can realize the fixing of tooth model after the cutting by the viscosity that changes the tooth model fixture, whole mouthful of tooth model after the cutting soon is fixed on the jelly, optionally change the viscosity of certain position fixture, use the method for automatic or manual to realize position and angle adjustment, viscosity with this position reverts to stationary state again, reaches and retightens;
The change method of tooth model position and angle or be: realize tooth model fixing after the cutting by the shape that changes the tooth model fixture, being about to tooth model is fixed on the solids, with physics, mechanical or chemical method optionally changes the shape or the form of certain position fixture, uses the method for automatic or manual to realize position, angle adjustment;
When the tooth model position after separating is adjusted, utilize the high accuracy electromechanical integration equipment to carry out position angle adjustment or manual mobile tooth model position;
The corresponding position of facing is provided with the locating hole adaptive with the tooth locating piece.
Compared with prior art, the advantage and the effect that have of the present invention is as follows:
Existing orthodontic tooth crown manufacture method adopts three-dimensional light curing molding technology to generate the required model of pressing mold more, this method generally all can be passed through 3-D scanning, the three-dimensional computer tooth model is cut apart and is handled, with these three generations that step is come implementation model of three-dimensional light curing molding. still, these three error ratios that step generated are bigger, and along with going deep into of production process, the error accumulation that can thereupon superpose, thus reduced just abnormal therapeutic effect.If error is excessive, also can cause the effect of negative side. in addition, the facing that adopts three-dimensional light curing molding technology to make, interior surface thereof is distributed with stepped corner angle and groove.These grooves use in the process of facing the patient can the deposition tartar, and breed bacteria causes harmful effect to the oral hygiene of user; Corner angle also can be worn and win in the process tooth is caused wearing and tearing at facing.
The method of this patent has been avoided corner angle and the groove on the facing that existing method is made into fully, thereby and all improves a lot than existing mode for the adjustment precision of tooth model generation and tooth position, angle. improved the rectification curative effect of facing greatly.
Four, description of drawings:
Fig. 1 changes the sketch map of the phase of tooth fixture for the present invention.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is the sketch map of the viscosity of tooth fixture for a change.
Fig. 4 is for carrying out the sketch map of press mold to the later tooth model of accurate adjustment.
Fig. 5 is for carrying out the sketch map that position angle is adjusted with robot arm.
Fig. 6 is for showing the sketch map of the state of tooth in real time with instrument.
Five, the specific embodiment:
1 precision is duplicated tooth model and is carried out cutting, the recovery of tooth jaw.
Adopting accurate moulding material to carry out the tooth precision duplicates.Moulding material has multiple choices, as: Gypsum Fibrosum, super hard gypsum, plastics, resin, metal etc., selected materials must have high accuracy, high strength, physical characteristic such as high temperature resistant, wear-resisting.With super hard gypsum or accurate resin is example: with gouache ratio be 22: 100 super hard gypsums and the mixture of water or firming agent and resin ratio are 1: 7 resin compound, inject dental impressions, bubble is discharged in fully vibration, solidify the back and take out, cutting is processed into one tooth model.Rearrange according to plaster model or other adminicle model teeth after with cutting and to recover original shape.
For more accurate adjustment model tooth position with utilize the computer-aided design therapeutic scheme; can pass through the 3-D scanning technology; scan as laser scanner technique or CT scan technology former or formpiston tooth; generate digitized tooth three-dimensional model; so just, can carry out the board design of therapeutic scheme by computer, as the moving of tooth, rotation, tube reducing and subtrahend.
The change method of model teeth position and angle and precision control after 2 cuttings.
2.1 the change of tooth position and angle has following several method after the cutting:
2.1.1 come the adjustment of implementation model tooth position and angle by the states of matter that changes the model teeth fixture, referring to Fig. 1 and Fig. 2.Full jaw tooth model after the reorganization is fixed in the container that fills solid-state No. 70 refined paraffin waxs, adopt electrothermal method near the paraffin certain tooth to be up to 70 ℃ heating, use the method realization position of automatic or manual and the adjustment of angle, adopt the semiconductor refrigerating mode that paraffin is cooled off again, make it to become solid, thereby retighten the tooth model of position through adjusting.
2.1.2 come the adjustment of implementation model tooth position and angle by the viscosity that changes the model teeth fixture
Referring to Fig. 3, full jaw tooth model after the reorganization is fixed on the polyamide hot base material, adopt electrothermal method that near the polyamide hot certain tooth is heated to about 115 ℃, PUR viscosity is reduced, adopt the method realization position of automatic or manual and the adjustment of angle.With the PUR cooling, PUR viscosity is improved again, thereby retighten the tooth model of position through adjusting.
2.1.3 the adjustment that shape by changing the tooth fixture or form are come implementation model tooth position and angle
Full jaw tooth model after the reorganization is installed on the solid body, and as paraffin, plastics, nylon and metal, mounting means can be at the model teeth root one or a few circular positioning needle to be installed, and simultaneously, process adaptive hole on fixed object; One or several non-circular locating piece can also be installed in the model teeth bottom, on fixed object, process adaptive die cavity accordingly.Adopt physics, machinery or chemical method optionally to change angle, position or the size of the mating hole or the die cavity of certain tooth model, model teeth is reinstalled in mating hole or the die cavity, thereby realize the adjustment of tooth position and angle, reach the purpose of retightening tooth model.
2.2 the precision of model teeth position and angle adjustment control
The precision control of tooth model position and angle adjustment can realize by following several method
2.2.1 utilize the high accuracy electromechanical integration equipment to carry out the adjustment of position and angle
Referring to Fig. 5, this method is to adopt a position and an angle of coming each model teeth of fine setting by the robot arm with 6 degree of freedom or the robot of computer real-time closed loop control.The linear precision of selected robot or robot arm requires to be less than or to equal 0.02mm, and angle precision requires to be less than or equal to 0.1 °.
Adjust scheme according to model teeth and control robot or robot arm by the computerized algorithm of complexity, clamping is lived the model teeth that desire is adjusted, the position and the angle of record model teeth this moment.Adopt above-mentioned method that model teeth can be moved, utilize the position and the angle of special-purpose software control machine hand adjustment integral mould tooth; Adopt said method that model teeth is fixed again.Repeat to use the method that full gnathode tooth is adjusted.
2.2.2 manual mobile tooth position
This method is used coordinate-measuring instrument, the position of real-time monitored model teeth and angle.Employed coordinate-measuring instrument can be digitizer, spatial digitizer or dual pathways video measuring equipment as shown in Figure 6, and its critical piece has two orthogonal video collector, coordinates platform, computer and special-purpose softwares etc.
Operator are according to the adjustment scheme of model teeth, and the model teeth of selecting desire to adjust is used coordinate-measuring instrument, position and angle before at first the record cast tooth is adjusted.Adopt above-mentioned method that model teeth can be moved, according to the position and the angle of the artificial adjustment model tooth of adjustment scheme, operator constantly utilize the position of the model teeth that the real-time three-dimensional coordinate system feeds back and angle control to adjust precision.After model teeth was adjusted to suitable position, operator adopted said method that model teeth is fixed again.Repeat to use the method that full gnathode tooth is adjusted.
2.3 the quality detecting method of closed loop
Every tooth on adjusted tooth model is sought one or several characteristic points, on the computer tooth model, also find simultaneously corresponding characteristic point, and extract these at the three-dimensional coordinate of correspondence on the course of treatment, to the measurement of one of tooth model or several characteristic points and the comparison of software coordinate, confirming to carry out next step operation after each characteristic point coordinates is within allowable error by instrumentation.
Accurately adjust later tooth model for 3 pairs and carry out press mold.
4 facing adnexaes
Referring to Fig. 4, position and angle for more effective adjustment tooth, need to install different shape such as cuboid, round platform, spherical crown, triangular prism and terrace with edge etc., overall dimensions in some cases from 0.5～3mm on tooth, thickness is from the fixture of 0.5～2.5mm; And on the corresponding position of facing, process adaptive hole, and when facing was worn on patient's tooth, adaptive hole can be enclosed within on the fixture, and by the suitable adjustment hole and the alternate position spike of fixture, facing can produce bigger power or moment to tooth.
Referring to Fig. 7, fixture can also adopt another mode, promptly on fixture, be provided with projection or groove, need not like this on the corresponding position of facing, to process adaptive hole, the projection of multiple shape or groove, overall dimensions are set from 0.5～3mm on the bases such as the shape of fixture such as cuboid, round platform, spherical crown, triangular prism and terrace with edge, thickness is from the fixture of 0.5～2.5mm
5 other application
The present invention utilizes facing to be placed in the oral cavity, with tooth
The characteristic that toe joint touches, in just abnormal process, also available same facing carries out the slow release of functions of whitening teeth and medicine.The slow release of medicine has good effect to the treatment and the control of hypertension, diabetes chronic diseases.
Claims (1)
1. the manufacture method of a macromolecule orthodontic tooth crown is characterized in that comprising following operating procedure:
(1) precision is duplicated tooth model and is carried out cutting;
(2) reduction of the tooth model after the cutting is arranged on the fixture;
(3) by changing the states of matter or the shape of tooth model fixture, the tooth model position after the method realization cutting of use automatic or manual and the accurate adjustment of angle;
(4) by the comparison of tooth model expection adjustment position, angle and absolute fix, angle, implement the quality testing and the control of closed loop;
(5) check after angle and the position, on tooth model, carry out press mold;
Wherein, the change method of tooth model position and angle is: the position of model teeth and angle can realize the fixing of tooth model after the cutting by the viscosity that changes the tooth model fixture, whole mouthful of tooth model after the cutting soon is fixed on the jelly, optionally change the viscosity of certain position fixture, use the method for automatic or manual to realize position and angle adjustment, viscosity with this position reverts to stationary state again, reaches and retightens;
The change method of tooth model position and angle or be: realize tooth model fixing after the cutting by the shape that changes the tooth model fixture, being about to tooth model is fixed on the solids, with physics, mechanical or chemical method optionally changes the shape or the form of certain position fixture, uses the method for automatic or manual to realize position, angle adjustment;
When the tooth model position after separating is adjusted, utilize the high accuracy electromechanical integration equipment to carry out position angle adjustment or manual mobile tooth model position;
The corresponding position of facing is provided with the locating hole adaptive with the tooth locating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100183981A CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100183981A CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101273921A CN101273921A (en) | 2008-10-01 |
| CN101273921B true CN101273921B (en) | 2010-08-25 |
Family
ID=39994067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100183981A Active CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101273921B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9259295B2 (en) | 2010-09-09 | 2016-02-16 | 3M Innovative Properties Company | Methods and apparatus for making a polymeric orthodontic appliance |
| CN103181829B (en) * | 2011-12-27 | 2016-10-05 | 无锡时代天使医疗器械科技有限公司 | Produce the method for digital dental model |
| CN103284805B (en) * | 2013-05-28 | 2016-09-07 | 上海正雅齿科科技有限公司 | The preparation method of elastic force thrust block formula dentognathic deformity appliance |
| CN104224373B (en) * | 2014-09-26 | 2016-05-11 | 杭州一牙数字口腔有限公司 | Without the cutting clamper of bracket invisible orthotic device |
| CN107205796B (en) * | 2015-02-26 | 2019-08-16 | 林彦璋 | The production method of unilateral formula occlusion facing |
| CN112641523A (en) * | 2020-09-16 | 2021-04-13 | 上海六普医疗科技有限公司 | Method for manufacturing macromolecule orthodontic tooth socket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975893A (en) * | 1997-06-20 | 1999-11-02 | Align Technology, Inc. | Method and system for incrementally moving teeth |
| CN1686058A (en) * | 2005-04-28 | 2005-10-26 | 上海隐齿丽医学技术有限公司 | Computer assisted hidden tooth abnormal correction system |
-
2007
- 2007-08-02 CN CN2007100183981A patent/CN101273921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975893A (en) * | 1997-06-20 | 1999-11-02 | Align Technology, Inc. | Method and system for incrementally moving teeth |
| CN1686058A (en) * | 2005-04-28 | 2005-10-26 | 上海隐齿丽医学技术有限公司 | Computer assisted hidden tooth abnormal correction system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101273921A (en) | 2008-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101273921B (en) | Method for producing macromolecule orthodontic tooth crown | |
| CN105078606B (en) | Tooth forces testing device and method | |
| US8682463B2 (en) | Denture grinding machine | |
| US8308481B2 (en) | Dental framework | |
| KR101567204B1 (en) | Method and system for fabricating dental prosthesis | |
| US8100692B2 (en) | Dental framework | |
| EP0503890B1 (en) | Process and apparatus for producing dental filling for restoration of tooth crown | |
| US20120088208A1 (en) | Method for Defining a Dental Framework Design Volume | |
| EP3372191A1 (en) | Fabrication of dental works from digital models | |
| KR101780189B1 (en) | Method and clamping fixture for producing a dental drilling template | |
| US20100316972A1 (en) | Method for the generative production of individual dental preformed parts for articulators | |
| WO2018179554A1 (en) | Try-in denture, try-in denture manufacturing program, and try-in denture manufacturing method | |
| AU2013206176A1 (en) | Methods for producing a laboratory analogue for dental implants | |
| CN104116569A (en) | Computer fabrication of dental prosthetic | |
| TW201000078A (en) | Manufacturing method for the guiding board of dental implant surgical operation | |
| JPH10192305A (en) | Production of artificial adaptation material and its device | |
| CN102988114A (en) | Method for manufacturing home-made digital operation guide plate based on cone beam computed tomography (CT) data | |
| Behairy et al. | Evaluation of retention for maxillary complete denture constructed by conventional and 3D printing techniques | |
| CN211460611U (en) | Digital tooth arrangement guide plate | |
| CN108891020A (en) | A kind of digitlization plantation guide plate production method based on fused glass pellet technology | |
| Oliveira | ACCURACY AND PRECISION OF 3-DIMENSIONAL PRINTED DENTAL MODELS PRODUCED BY DIFFERENT ADDITIVE MANUFACTURING TECHNOLOGIES. | |
| Ren et al. | Digital production of an occlusal splint by a jaw movement analysis system and an average articulator: A preliminary study | |
| Miyashita et al. | Accuracy of the impression technique using thermoforming polymethyl methacrylate tray | |
| 전진 | EVALUATION OF THE ACCURACY OF DENTAL MODELS FABRICATED BY VARIOUS 3D PRINTERS | |
| CN117883200A (en) | Non-circular section oral implant suitable for robot planting and planting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |