CN101273921A - Method for producing macromolecule orthodontic tooth crown - Google Patents
Method for producing macromolecule orthodontic tooth crown Download PDFInfo
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- CN101273921A CN101273921A CNA2007100183981A CN200710018398A CN101273921A CN 101273921 A CN101273921 A CN 101273921A CN A2007100183981 A CNA2007100183981 A CN A2007100183981A CN 200710018398 A CN200710018398 A CN 200710018398A CN 101273921 A CN101273921 A CN 101273921A
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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 its size is big, and foreign body sensation 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.
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.
Three, summary of the invention:
The present invention provides a kind of manufacture method of macromolecule orthodontic tooth crown in order to solve the weak point in the above-mentioned background technology, its improved product precision and therapeutic effect, reduced production cost, and initiated the quality detecting method of closed loop in the orthodontic tooth crown field.
A kind of manufacture method of macromolecule orthodontic tooth crown, its special character is to comprise following operating procedure:
1. precision is duplicated tooth model and is carried out cutting;
2. the 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 position after the method realization cutting of use automatic or manual and the accurate adjustment of angle;
4. adjust the comparison of position, angle and absolute fix, angle by the tooth expection, implement the quality testing and the control of closed loop;
5. check after angle and the position, on tooth model, carry out press mold.
The change method of model teeth position and angle:
The position of model teeth and angle can realize the fixing of tooth after the cutting by the viscosity that changes the tooth fixture, whole mouthful of tooth model combination 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 position of model teeth and the change of angle can also realize tooth fixing after the cutting by the shape that changes the tooth fixture, being about to tooth model is fixed on the solid body, with physics, mechanical or chemical method optionally changes the shape or the form of certain position fixture, uses the method realization position of automatic or manual, the adjustment of angle.
When tooth model position after separating is adjusted, utilize the position and the angle of high accuracy electromechanical integration equipment adjustment model tooth, thereby provide reliable accuracy guarantee for the adjustment of tooth position and angle.If adopt the position and the angle that move tooth with manual mode, the present invention then provides a kind of real-time tooth position, the measuring method and the feedback system of angle, and pilot operationp person carries out the trickle position and the adjustment of angle, reaches accurate control with this.
Compared with prior art, the advantage and the effect that have of the present invention is as follows:
1, the present invention has proposed the brand-new technology system to macromolecule orthodontic tooth crown, created that a whole set of is perfect, with the diverse manufacture method of existing method and production technology, 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 and these three generations that step is come implementation model of three-dimensional light curing molding.But these three error ratios that step generated are bigger, and along with the 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.
2, method of the present invention has been avoided corner angle and the groove on the facing that existing method is made into fully, and all improves a lot than existing mode for the adjustment precision of tooth model generation and tooth position, angle.Thereby 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 that position angle is adjusted with robot arm.
Fig. 5 is the program flow diagram of self-optimizing model tooth.
Fig. 6 is for showing the sketch map of the state of tooth in real time with instrument.
Fig. 7 is the program flow diagram of manual adjustment model tooth.
Fig. 8 be fixture a kind of form sketch map.
Fig. 9 to Figure 12 is the sketch map of the another kind of form of fixture.
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 1 after the reorganization is fixed in the container 2 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 3 after the reorganization is fixed on the polyamide hot base material 4, 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. 4, 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 5 or the robot of computer real-time closed loop control.The linear precision of selected robot or robot arm 5 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, by the position and the angle of 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.Referring to Fig. 5, be by the position of control machine hand adjustment integral mould tooth and the step of angle:
(1) reads the coordinate of each tooth of full gnathode tooth;
(2) read the setting coordinate of tooth frock;
(3) selection will be adjusted the tooth model of position;
(4) robot arm is installed frock to desired location;
(5) robot arm utilizes frock to catch the tooth that will adjust the position;
(6) utilize mode of the present invention to make the softening or phase transformation of base material;
(7) computer is determined the amount of movement Δ x that this tooth is required, Δ y, Δ z by calculating;
(8) x of computer control machine hands, y, the mobile respectively Δ x of z axle, Δ y, Δ z;
(9) computer is determined the amount of spin Δ α that this tooth is required, Δ β, Δ γ by calculating;
(10) α of computer control machine hands, the mobile respectively Δ α of beta, gamma axle, Δ β, Δ γ;
(11) utilize mode of the present invention to make base material sclerosis or phase transformation;
(12) frock discharges the tooth of adjusting the position;
(13) robot arm discharges frock to the frock storehouse;
(14) judging whether this tooth is last tooth, is then to adjust end; Otherwise return step (2).
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 etc.
Referring to Fig. 7, the manual adjustment operating procedure is:
(1) the full gnathode tooth that will recombinate is placed on the measuring table;
(2) measure the initial position that to adjust tooth by testing equipment;
(3) selection will be adjusted the tooth model of position;
(4) utilize mode of the present invention to make the softening or phase transformation of base material;
(5) utilize the position of manual setting tooth;
(6) measuring system shows angle and the position when front teeth in real time;
(7) whether judgement is consistent with doctor's the scheme of rescuing, and is then to continue next step; Otherwise return step (5);
(8) utilize mode of the present invention to make base material sclerosis or phase transformation;
(9) judging whether this tooth is last tooth, is then to adjust end; Otherwise return step (2).
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.
Accurately adjust later tooth model for 3 pairs and carry out press mold.
4 facing adnexaes
Referring to Fig. 8, 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 7, 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. 9 to Figure 12, 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 8 or the groove 9 of multiple shape are set on the bases such as the shape of fixture such as cuboid, round platform, spherical crown, triangular prism and terrace with edge, overall dimensions is from 0.5～3mm, and 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, the characteristic that contacts with tooth, and 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 (5)
1, 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 position after the method realization cutting of use automatic or manual and the accurate adjustment of angle;
(4) by the comparison of tooth 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.
2, the manufacture method of macromolecule orthodontic tooth crown according to claim 1, it is characterized in that: the change method of model teeth position and angle is: the position of model teeth and angle can realize the fixing of tooth after the cutting by the viscosity that changes the tooth fixture, whole mouthful of tooth model combination 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.
3, the manufacture method of macromolecule orthodontic tooth crown according to claim 1, it is characterized in that: the change method of the position of model teeth and angle is: by fixing of the tooth after the shape realization cutting that changes the tooth fixture, being about to tooth model is fixed on the solid body, with physics, mechanical or chemical method optionally changes the shape or the form of certain position fixture, uses the method realization position of automatic or manual, the adjustment of angle.
4, the manufacture method of macromolecule orthodontic tooth crown according to claim 1 is characterized in that: 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 position.
5, the manufacture method of macromolecule orthodontic tooth crown according to claim 1 is characterized in that: the corresponding position of facing is provided with the locating hole adaptive with the tooth locating piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100183981A CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
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| CN2007100183981A CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
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| CN101273921A true CN101273921A (en) | 2008-10-01 |
| CN101273921B CN101273921B (en) | 2010-08-25 |
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| CN2007100183981A Active CN101273921B (en) | 2007-08-02 | 2007-08-02 | Method for producing macromolecule orthodontic tooth crown |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103181829A (en) * | 2011-12-27 | 2013-07-03 | 无锡时代天使医疗器械科技有限公司 | Method for producing figure tooth model |
| CN103284805A (en) * | 2013-05-28 | 2013-09-11 | 上海正雅齿科科技有限公司 | Manufacturing method of elastic force/ and push force module type dentognathic deformity appliance |
| CN104224373A (en) * | 2014-09-26 | 2014-12-24 | 杭州一牙数字口腔有限公司 | Cutting clamp for non-bracket invisible orthodontic appliance |
| US9259295B2 (en) | 2010-09-09 | 2016-02-16 | 3M Innovative Properties Company | Methods and apparatus for making a polymeric orthodontic appliance |
| WO2016134504A1 (en) * | 2015-02-26 | 2016-09-01 | 林彦璋 | Manufacturing method for single-side type occlusive tooth socket |
| 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 |
| CN115297801A (en) * | 2020-03-30 | 2022-11-04 | 登士柏西诺德公司 | Apparatus for separating dental instruments of deep drawing across the jaw formed by thermoforming film |
Family Cites Families (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 |
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2007
- 2007-08-02 CN CN2007100183981A patent/CN101273921B/en active Active
Cited By (11)
| 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 |
| CN103181829A (en) * | 2011-12-27 | 2013-07-03 | 无锡时代天使医疗器械科技有限公司 | Method for producing figure tooth model |
| CN103284805A (en) * | 2013-05-28 | 2013-09-11 | 上海正雅齿科科技有限公司 | Manufacturing method of elastic force/ and push force module type dentognathic deformity appliance |
| 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 |
| CN104224373A (en) * | 2014-09-26 | 2014-12-24 | 杭州一牙数字口腔有限公司 | Cutting clamp for non-bracket invisible orthodontic 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 |
| WO2016134504A1 (en) * | 2015-02-26 | 2016-09-01 | 林彦璋 | Manufacturing method for single-side type occlusive tooth socket |
| CN107205796A (en) * | 2015-02-26 | 2017-09-26 | 林彦璋 | Unilateral formula is engaged the manufacture method of facing |
| CN107205796B (en) * | 2015-02-26 | 2019-08-16 | 林彦璋 | The production method of unilateral formula occlusion facing |
| CN115297801A (en) * | 2020-03-30 | 2022-11-04 | 登士柏西诺德公司 | Apparatus for separating dental instruments of deep drawing across the jaw formed by thermoforming film |
| 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 |
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| CN101273921B (en) | 2010-08-25 |
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