CN106725920A - A kind of designing and manufacturing method of orthodontic appliance - Google Patents
A kind of designing and manufacturing method of orthodontic appliance Download PDFInfo
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- CN106725920A CN106725920A CN201611115607.XA CN201611115607A CN106725920A CN 106725920 A CN106725920 A CN 106725920A CN 201611115607 A CN201611115607 A CN 201611115607A CN 106725920 A CN106725920 A CN 106725920A
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- orthodontic appliance
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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
- A61C7/002—Orthodontic computer assisted systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2204/00—Features not otherwise provided for
Abstract
The invention discloses a kind of designing and manufacturing method of orthodontic appliance, by colored 3D scanners, scanning obtains the threedimensional model of tooth, simplifies the method for designing of orthodontic appliance.
Description
Technical field
The present invention relates to orthodontic field, more particularly to a kind of designing and manufacturing method of orthodontic appliance.
Background technology
In recent years, mouth cavity orthodontic invisalign technology progressively develops and moves to maturity in China.With the U.S., China etc. one
The orthodontist and Software Engineer's Interdisciplinary collaboration of a little countries, using CAD/CAM technologies, with advanced making side
Method, makes a kind of personalized high molecule plastic appliance.The appliance can produce a certain size corrective force and make tooth by
Step is slow mobile, so as to overcome the shortcoming of conventional orthodontic method.The method is to print to rescue by 3D printing forming machine
Dentognathic model in journey, reuses malleation film laminator press process on the dentognathic model and goes out invisible orthotic device.
Patent CN102512251A discloses a kind of manufacture method of invisible orthotic device, in the system of patient's tooth jaw physical model
Make in step, tooth formpiston is obtained in tooth former model using gypsum, the tooth formpiston is repaired to wipe out gum
Simultaneously be positioned in silicon rubber former again for it by gypsum part corresponding to part, is subsequently filled thermoplastic to obtain by heat
Patient's tooth jaw physical model that plastic material and gypsum are collectively constituted.Patent CN105748163A discloses a kind of area of computer aided
Tooth invisible orthotic device without bracket method for designing, carries out the acquisition of tooth jaw three-dimensional grid model, tooth segmentation and Dental Erosion successively,
Then virtual gum grid is carried out to build and virtual tooth occlusion structure.Patent CN101940503A discloses a kind of for obtaining
The method of dental impression accurate three-dimensional model, comprises the following steps：1) at least of upper jaw impression and/or lower jaw impression is scanned
Point, obtain impression scanning figure；2) quality of impression scanning figure is assessed, and if 3) quality cannot be used for accurate three-dimensional mould
Type, then fill one or more chambers of dental impression with filler, to obtain the model in the chamber, and scans the model acquisition mould
Type scanning figure, and the model scanning figure and the alignment of impression scanning figure and combine, threedimensional model is derived from, and/or again
One or more relevant ranges of secondary scanning dental impression, and the relevant range scanning figure and the alignment of impression scanning figure and group
Close, be derived from threedimensional model, if or 4) quality cannot be used for the accurate three-dimensional model of dental impression, use impression scanning
Figure, to obtain threedimensional model, is derived from the accurate three-dimensional model of dental impression.
It can be seen that, need to carry out cutting process to three-dimensional tooth jaw mathematical model in the prior art, or by Multiple-Scan
Accurate dentognathic model can be obtained, it is impossible to the disposable corona model and gingival model for obtaining having split, cause the generation of model
Method is cumbersome, and the problems such as be not avoided that cutting error.Therefore, it is necessary to provide a kind of more easily orthodontic appliance design
With preparation method.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of designing and manufacturing method of orthodontic appliance.
The present invention is achieved by the following technical solutions：
A kind of designing and manufacturing method of orthodontic appliance, comprises the following steps：
S1. dental impressions are obtained with the plaster cast of tooth jaw, every tooth to plaster cast carries out dyeing treatment；
S2. to dye plaster cast be scanned, based on different colours obtain corona three-dimensional digitalization model and
The three-dimensional digitalization model of gum, by the three-dimensional digitalization model of corona and the tooth corona directional information and root of the tooth position for obtaining
Information carries out contrast verification, according to tooth direction and root of the tooth positional information, rebuilds the three-dimensional digitalization model of complete tooth；
S3. the three-dimensional digitalization model to tooth carries out adjusting tooth to operate and obtain the three-dimensional digital dentognathic model after correction
Or three-dimensional digital appliance model, print obtain dentognathic model or orthodontic appliance afterwards.
Preferably, the tooth on plaster cast is dyeed using different colours in the step S1, and covers whole
Corona part.
Preferably, adjacent teeth color is different after dyeing, and the color of gum portion is different with color of teeth.
Further, the plaster cast for dyeing is scanned by colour 3D scanners in the step S2, and is based on
Different colours obtain the digital model of different dental.
Further, the step S3 is specifically included：
S301. the three-dimensional digitalization model of tooth is carried out to adjust tooth to operate by adjusting tooth module, adjusts the relative position of tooth
Put or absolute position and aligning, acquisition reaches a series of correction states passed through required for orthodontic treatment purpose；
S302. the tooth jaw shape of each correction state is predicted and rebuild, three-dimensional digital dentognathic model or three-dimensional is generated
Digitlization appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
S303. the three-dimensional digital dentognathic model or three-dimensional digital appliance model that will be obtained import 3D printing equipment,
Printing obtains dentognathic model or appliance；After printing obtains dentognathic model, orthodontic appliance is made using the method for press mold.
Further, the step S301 is specifically included：Three dimensions of three-dimensional digitalization model and gum according to corona
The position of word model obtains vertical direction axle；According to tooth position distributed acquisition plane tongue side to lip side axis of orientation, Yi Jishui
Flat axis of orientation, sets up tooth jaw coordinate system；Tooth digital model is put into tooth jaw coordinate system carries out position or angular adjustment operation.
Further, show that tooth, gum, tooth coordinate system, tooth exist by visualization device in the step S301
Position and tooth jaw coordinate system in tooth jaw；By dragging tooth direction signs, tooth is moved or rotation process, from
And reach the effect for adjusting tooth；Adjust during tooth, while showing the position relationship of adjacent teeth, and prompting is provided to impact severity；
During tune tooth, while the distance and angle of this movement of tooth are shown, and tooth adds up mobile distance and angle, and it is right
Operation beyond predeterminable range or angle provides warning.
Further, during the tune tooth of the step S301, confirm once to adjust tooth end-of-job using interactive mode；Adjust
The moving process of user input can be decomposed based on predetermined threshold value during tooth or after tune tooth terminates, once mobile point
It is continuous repeatedly movement to solve, and ensures that each amount of movement is no more than predetermined threshold value；During tune tooth, above-mentioned decomposable process
Single or multiple teeth can be directed to while being operated；Adjust during tooth, above-mentioned decomposable process is prevented by given threshold
The situation of the middle degree intensification that collided because of tooth position change, when the collision for occurring exceeds threshold value, adjusts tooth module automatic
The mobile order and speed of adjustment both sides tooth are attempted, with collision free；Adjust during tooth, the multiple of automatic classifying adjust the tooth stage
Can be demonstrated by visualization device, and the change in location in wherein any one stage is further adjusted by user, to reach user
Promising result.
Further, treat straightening of teeth position and repeatedly adjusted tooth, so as to sequentially occur in obtaining whole correcting process
A series of rescue state.
The beneficial effects of the invention are as follows：
(1) designing and manufacturing method of a kind of orthodontic appliance of the invention, is dyeed laggard by the plaster cast to tooth
The 3D scannings of row colour, can be with quick obtaining corona and the three-dimensional digitalization model of gum；
(2) three-dimensional of the designing and manufacturing method of a kind of orthodontic appliance of the invention, scanning direct access corona and gum
Digital model, need not carry out cutting process afterwards, simplify the generation method of model, it is to avoid digital model was split
Issuable error in journey；
(3) present invention calculates the tooth bearing data for obtaining three-dimensional digitalization model by automating；
(4) a kind of designing and manufacturing method of orthodontic appliance of the invention, simple to operate, tune tooth is accurate, improves tooth
Correction efficiency and effect.
Specific embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained on the premise of creative work is not made, belongs to protection of the present invention
Scope.
Embodiment 1
The invention discloses a kind of designing and manufacturing method of orthodontic appliance, comprise the following steps：
S1. dental impressions are obtained with the plaster cast of tooth jaw, every tooth to plaster cast carries out dyeing treatment, is based on
Different colours obtain the three-dimensional digitalization model of different dental and the three-dimensional digitalization model of tooth jaw；Distinguished using different colours
Every tooth on plaster cast is dyeed, it is different at interval of a color for tooth, and whole corona part is covered, and
And the color caught is differed with the true qualities of tooth and gum, and tooth is distinguished with gum by different colors, and will
Single tooth is distinguished；
Panoramic radiograph and oral cavity lateral projection are analyzed by image analytical method, tooth corona directional information and root of the tooth position is obtained
Confidence ceases；
S2. the plaster cast for dyeing is scanned by colour 3D scanners, the three of corona is obtained based on different colours
The three-dimensional digitalization model of dimension word model and gum, by the three-dimensional digitalization model of corona and the tooth corona side for obtaining
Contrast verification is carried out to information and root of the tooth positional information, according to tooth direction and root of the tooth positional information, complete tooth is rebuild
Three-dimensional digitalization model, substantially increases the formation efficiency of tooth model, and subsequently need not carry out cutting process to model
Can be carried out the orthodontic procedure of next step tooth；
S3. the three-dimensional digitalization model to tooth carries out adjusting tooth to operate and obtain the three-dimensional digital dentognathic model after correction
Or three-dimensional digital appliance model, print obtain dentognathic model or appliance afterwards.Specifically include：
S301. the three-dimensional digitalization model of tooth is carried out to adjust tooth to operate by adjusting tooth module, adjusts the relative position of tooth
Put or absolute position and aligning, acquisition reaches a series of correction states passed through required for orthodontic treatment purpose；
Minimum bounding box algorithm refers to find that volume minimum can be found by alternative manner with the hexahedron of encircling space
Hexahedron.
Cloud data distribution refers to that adjacent edge is reference axis with some summit of hexahedron as origin, forms a coordinate
System.Tooth direction refers to root of the tooth to the direction of corona, and tooth direction uses one of three axial directions of coordinate system, it is assumed that by tooth side
To Z axis are set to, two other axle is respectively X-axis and Y-axis.Because 3D point cloud data are face data, tooth bottom missing.Using
Tooth cloud data makes section parallel to X/Y plane, and ring-type point cloud can be obtained mostly, and due to tooth bottom missing, it is most
In the case of make section parallel to other planes and can not obtain ring-type point cloud.According to this characteristic, can be from three change in coordinate axis direction
Middle determination tooth direction.
The position of the three-dimensional digitalization model of three-dimensional digitalization model and gum according to corona obtains vertical direction axle；Root
According to tooth position distributed acquisition plane tongue side to lip side axis of orientation and horizontal direction axle, tooth jaw coordinate system is set up；Wherein three
Axle is respectively tongue side to lip side to, gum to corona direction and the direction parallel with lip；Tooth digital model is put
Entering tooth jaw coordinate system carries out position or angular adjustment operation.
The position and tooth jaw coordinate of tooth, gum, tooth coordinate system, tooth in tooth jaw are shown by visualization device
System；By dragging tooth direction signs, tooth is moved or rotation process, the effect of tooth is adjusted so as to reach；Adjust tooth mistake
Cheng Zhong, while showing the position relationship of adjacent teeth, and provides prompting to impact severity；During tune tooth, while showing tooth
The distance and angle of this movement, and tooth add up mobile distance and angle, and to the behaviour beyond predeterminable range or angle
Provide warning.
Confirm once to adjust tooth end-of-job using interactive mode；Default threshold can be based on during tune tooth or after adjusting tooth to terminate
Value is decomposed to the moving process of user input, once movement is decomposed into continuous repeatedly movement, and ensure each
Amount of movement is no more than predetermined threshold value；Adjust during tooth, above-mentioned decomposable process can be directed to single or multiple teeth while carrying out
Operation；During adjusting tooth, prevented in above-mentioned decomposable process because the degree of colliding adds tooth position changes by given threshold
Deep situation, when the collision for occurring exceeds threshold value, adjusts tooth module to automatically attempt to adjust the mobile order and speed of both sides tooth,
With collision free；Adjust during tooth, the multiple of automatic classifying adjust the tooth stage to be demonstrated by visualization device, and enter one by user
The change in location in successive step wherein any one stage, to reach customer satisfaction system effect.
The threedimensional model rebuild after CT scan is obtained and adjusts tooth, and matched with three-dimensional digital dentognathic model, CT
The threedimensional model for scanning generation is more comprehensive, includes tooth, tooth jawbone, alveolar bone etc., in can observing tooth moving process
Whether beyond alveolar bone scope, it is to avoid the excessive regulation to tooth position；If root of the tooth moves out the scope of alveolar bone,
Reuse adjuster and adjust tooth；If root of the tooth movement is without departing from the scope of alveolar bone, continue step S302.
S302. the tooth jaw shape of each correction state is predicted and rebuild, three-dimensional digital dentognathic model or three-dimensional is generated
Digitlization appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
The gum curved surface after correction and tooth surface chart can also be obtained, the three-dimensional digital tooth jaw mould of cavity structure is generated
Type or three-dimensional digital appliance model；Supporting construction necessary to directly generating printer model in the cavity of dentognathic model,
Based on root of the tooth, the corona information of adjacent three or four teeth after adjusting tooth, gum curved surface is generated.
During gum curved surface is generated, given threshold directly generates inside and outside two curved surfaces, and threshold value is negative camber outside
The thickness of curved surface.Three-dimensional digitalization model can be generated using following two methods：
Method one：Gum curved surface and exterior of teeth are set to negative camber, then positive camber is generated to external expansion, it is inside and outside
The appliance model that surface composition generation can be printed directly.
Method two：Gum curved surface and exterior of teeth are set to positive camber, then inwardly extended generation negative camber, inside and outside
Surface composition generates the cavity structure of tooth jaw, you can the dentognathic model of printing.
S303. the three-dimensional digital dentognathic model or three-dimensional digital appliance model that will be obtained import 3D printing equipment,
Printing obtains dentognathic model or appliance；After printing obtains dentognathic model, orthodontic appliance is made using the method for press mold.
Treat straightening of teeth position and repeatedly adjusted tooth, so that what is sequentially occurred in obtaining whole correcting process is a series of strong
Control state.
Embodiment 2
The invention discloses a kind of designing and manufacturing method of orthodontic appliance, comprise the following steps：
S1. dental impressions are obtained with the plaster cast of tooth jaw, every tooth to plaster cast carries out dyeing treatment, is based on
Different colours obtain the three-dimensional digitalization model of different dental and the three-dimensional digitalization model of tooth jaw；Using different colours to stone
Tooth on cream model is dyeed, and covers whole corona part, and adjacent teeth catches different colors, and the face caught
Color is differed with the true qualities of tooth and gum, and tooth is distinguished with gum by different colors, and by single tooth area
Separate；
Teeth images are obtained to dental scans by CT equipment, and by three-dimensional reconstruction obtain tooth corona directional information and
Root of the tooth positional information；
S2. the plaster cast for dyeing is scanned by colour 3D scanners, the three of corona is obtained based on different colours
The three-dimensional digitalization model of dimension word model and gum, by the three-dimensional digitalization model of corona and the tooth corona side for obtaining
Contrast verification is carried out to information and root of the tooth positional information, according to tooth direction and root of the tooth positional information, complete tooth is rebuild
Three-dimensional digitalization model, substantially increases the formation efficiency of tooth model, and subsequently need not carry out cutting process to model
Can be carried out the orthodontic procedure of next step tooth；
S3. the three-dimensional digitalization model to tooth carries out adjusting tooth to operate and obtain the three-dimensional digital dentognathic model after correction
Or three-dimensional digital appliance model, print obtain dentognathic model or appliance afterwards.Specifically include：
S301. the three-dimensional digitalization model of tooth is carried out to adjust tooth to operate by adjusting tooth module, adjusts the relative position of tooth
Put or absolute position and aligning, acquisition reaches a series of correction states passed through required for orthodontic treatment purpose；
Minimum bounding box algorithm refers to find that volume minimum can be found by alternative manner with the hexahedron of encircling space
Hexahedron.
Cloud data distribution refers to that adjacent edge is reference axis with some summit of hexahedron as origin, forms a coordinate
System.Tooth direction refers to root of the tooth to the direction of corona, and tooth direction uses one of three axial directions of coordinate system, it is assumed that by tooth side
To Z axis are set to, two other axle is respectively X-axis and Y-axis.Because 3D point cloud data are face data, tooth bottom missing.Using
Tooth cloud data makes section parallel to X/Y plane, and ring-type point cloud can be obtained mostly, and due to tooth bottom missing, it is most
In the case of make section parallel to other planes and can not obtain ring-type point cloud.According to this characteristic, can be from three change in coordinate axis direction
Middle determination tooth direction.
The position of the three-dimensional digitalization model of three-dimensional digitalization model and gum according to corona obtains vertical direction axle；Root
According to tooth position distributed acquisition plane tongue side to lip side axis of orientation, and horizontal direction axle, tooth jaw coordinate system is set up, wherein three
Axle is respectively tongue side to lip side to, gum to corona direction and the direction parallel with lip；Tooth digital model is put
Entering tooth jaw coordinate system carries out position or angular adjustment operation.
The position and tooth jaw coordinate of tooth, gum, tooth coordinate system, tooth in tooth jaw are shown by visualization device
System；By dragging tooth direction signs, tooth is moved or rotation process, the effect of tooth is adjusted so as to reach；Adjust tooth mistake
Cheng Zhong, while showing the position relationship of adjacent teeth, and provides prompting to impact severity；During tune tooth, while showing tooth
The distance and angle of this movement, and tooth add up mobile distance and angle, and to the behaviour beyond predeterminable range or angle
Provide warning.
Confirm once to adjust tooth end-of-job using interactive mode；Default threshold can be based on during tune tooth or after adjusting tooth to terminate
Value is decomposed to the moving process of user input, once movement is decomposed into continuous repeatedly movement, and ensure each
Amount of movement is no more than predetermined threshold value；Adjust during tooth, above-mentioned decomposable process can be directed to single or multiple teeth while carrying out
Operation；During adjusting tooth, prevented in above-mentioned decomposable process because the degree of colliding adds tooth position changes by given threshold
Deep situation, when the collision for occurring exceeds threshold value, adjusts tooth module to automatically attempt to adjust the mobile order and speed of both sides tooth,
With collision free；Adjust during tooth, the multiple of automatic classifying adjust the tooth stage to be demonstrated by visualization device, and enter one by user
The change in location in successive step wherein any one stage, to reach customer satisfaction system effect.
The threedimensional model rebuild after CT scan is obtained and adjusts tooth, and matched with three-dimensional digital dentognathic model, CT
The threedimensional model for scanning generation is more comprehensive, includes tooth, tooth jawbone, alveolar bone etc., in can observing tooth moving process
Whether beyond alveolar bone scope, it is to avoid the excessive regulation to tooth position；If root of the tooth moves out the scope of alveolar bone,
Reuse adjuster and adjust tooth；If root of the tooth movement is without departing from the scope of alveolar bone, continue step S302.
S302. the tooth jaw shape of each correction state is predicted and rebuild, three-dimensional digital dentognathic model or three-dimensional is generated
Digitlization appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
The gum curved surface after correction and tooth surface chart can also be obtained, the three-dimensional digital tooth jaw mould of cavity structure is generated
Type or three-dimensional digital appliance model；Supporting construction necessary to directly generating printer model in the cavity of dentognathic model,
Based on root of the tooth, the corona information of adjacent three or four teeth after adjusting tooth, gum curved surface is generated.
During gum curved surface is generated, given threshold directly generates inside and outside two curved surfaces, and threshold value is negative camber outside
The thickness of curved surface.Three-dimensional digitalization model can be generated using following two methods：
Method one：Gum curved surface and exterior of teeth are set to negative camber, then positive camber is generated to external expansion, it is inside and outside
The appliance model that surface composition generation can be printed directly.
Method two：Gum curved surface and exterior of teeth are set to positive camber, then inwardly extended generation negative camber, inside and outside
Surface composition generates the cavity structure of tooth jaw, you can the dentognathic model of printing.
S303. the three-dimensional digital dentognathic model or three-dimensional digital appliance model that will be obtained import 3D printing equipment,
Printing obtains dentognathic model or appliance；After printing obtains dentognathic model, orthodontic appliance is made using the method for press mold.
Treat straightening of teeth position and repeatedly adjusted tooth, so that what is sequentially occurred in obtaining whole correcting process is a series of strong
Control state.
The beneficial effects of the invention are as follows：
(1) designing and manufacturing method of a kind of orthodontic appliance of the invention, is dyeed laggard by the plaster cast to tooth
The 3D scannings of row colour, can be with quick obtaining corona and the three-dimensional digitalization model of gum；
(2) three-dimensional of the designing and manufacturing method of a kind of orthodontic appliance of the invention, scanning direct access corona and gum
Digital model, need not carry out cutting process afterwards, simplify the generation method of model, it is to avoid digital model was split
Issuable error in journey；
(3) present invention calculates the tooth bearing data for obtaining three-dimensional digitalization model by automating；
(4) a kind of designing and manufacturing method of orthodontic appliance of the invention, simple to operate, tune tooth is accurate, improves tooth
Correction efficiency and effect.
The above is the preferred embodiment of the present invention, it should be noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (9)
1. a kind of designing and manufacturing method of orthodontic appliance, it is characterised in that comprise the following steps：
S1. dental impressions are obtained with the plaster cast of tooth jaw, every tooth to plaster cast carries out dyeing treatment；
S2. the plaster cast for dyeing is scanned, the three-dimensional digitalization model and gum of corona is obtained based on different colours
Three-dimensional digitalization model, by the three-dimensional digitalization model of corona with obtain tooth corona directional information and root of the tooth positional information
Contrast verification is carried out, according to tooth direction and root of the tooth positional information, the three-dimensional digitalization model of complete tooth is rebuild；
S3. the three-dimensional digitalization model to tooth carries out adjusting tooth to operate and obtain the three-dimensional digital dentognathic model or three after correction
Dimension word appliance model, afterwards printing obtains dentognathic model or orthodontic appliance.
2. the designing and manufacturing method of a kind of orthodontic appliance according to claim 1, it is characterised in that in the step S1
The tooth on plaster cast is dyeed using different colours, and covers whole corona part.
3. a kind of designing and manufacturing method of orthodontic appliance according to claim 2, it is characterised in that phase adjacent teeth after dyeing
The color of tooth is different.
4. the designing and manufacturing method of a kind of orthodontic appliance according to claim 3, it is characterised in that in the step S2
The plaster cast for dyeing is scanned by colored 3D scanners, obtains the three-dimensional digital of the corona corresponding to different colours
The three-dimensional digitalization model of model and gum.
5. a kind of designing and manufacturing method of the orthodontic appliance according to claim 1 or 4, it is characterised in that the step
S3 is specifically included：
S301. the three-dimensional digitalization model of tooth is carried out to adjust tooth to operate by adjusting tooth module, adjusts the position of tooth and come into line
Denture, acquisition reaches a series of correction states passed through required for orthodontic treatment purpose；
S302. the tooth jaw shape of each correction state is predicted and rebuild, three-dimensional digital dentognathic model or 3-dimensional digital is generated
Change appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
S303. the three-dimensional digital dentognathic model or three-dimensional digital appliance model that will be obtained import 3D printing equipment, printing
Obtain dentognathic model or appliance；After printing obtains dentognathic model, orthodontic appliance is made using the method for press mold.
6. a kind of designing and manufacturing method of orthodontic appliance according to claim 5, it is characterised in that the step S301
Specifically include：The position of the three-dimensional digitalization model of three-dimensional digitalization model and gum according to corona obtains vertical direction axle；
According to tooth position distributed acquisition plane tongue side to lip side axis of orientation and horizontal direction axle, tooth jaw coordinate system is set up；By tooth
Digital model is put into tooth jaw coordinate system and carries out position or angular adjustment operation.
7. a kind of designing and manufacturing method of orthodontic appliance according to claim 6, it is characterised in that the step S301
In position and tooth jaw coordinate system in tooth jaw of tooth, gum, tooth coordinate system, tooth is shown by visualization device；It is logical
Dragging tooth direction signs are crossed, tooth is moved or rotation process, the effect of tooth is adjusted so as to reach；During tune tooth,
The position relationship of adjacent teeth is shown simultaneously, and prompting is given to impact severity；During tune tooth, while this is moved to show tooth
Dynamic distance and angle, and tooth adds up mobile distance and angle, and to being given beyond the operation of predeterminable range or angle
Warning.
8. a kind of designing and manufacturing method of orthodontic appliance according to claim 7, it is characterised in that the step S301
Tune tooth during, using interactive mode confirm once adjust tooth end-of-job；Can be based on during tune tooth or after tune tooth terminates
Predetermined threshold value is decomposed to the moving process of user input, once movement is decomposed into continuous repeatedly movement, and ensure
Each amount of movement is no more than predetermined threshold value；Adjust during tooth, above-mentioned decomposable process can be directed to single or multiple teeth is same
Shi Jinhang is operated；Adjust during tooth, prevent from being collided because tooth position changes in above-mentioned decomposable process by given threshold
The situation that degree is deepened, when the collision for occurring exceeds threshold value, adjusts tooth module to automatically attempt to adjust the mobile order of both sides tooth
And speed, with collision free；Adjust during tooth, the multiple of automatic classifying adjust the tooth stage to be demonstrated by visualization device, and by
User further adjusts the change in location in wherein any one stage.
9. the designing and manufacturing method of a kind of orthodontic appliance according to claim 8, it is characterised in that treat straightening of teeth
Tooth is repeatedly adjusted at position, so that what is sequentially occurred in obtaining whole correcting process a series of rescues state.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111012528A (en) * | 2019-11-22 | 2020-04-17 | 中国医科大学附属口腔医院 | 3D design and manufacturing method of bracket-free invisible appliance |
| JP2020150966A (en) * | 2019-03-18 | 2020-09-24 | アリッド株式会社 | Dental model and dental model virtualization method using the same |
| CN114638838A (en) * | 2022-03-22 | 2022-06-17 | 先临三维科技股份有限公司 | Tooth model generation method, device, equipment and storage medium |
| CN115422613A (en) * | 2022-09-20 | 2022-12-02 | 国能(惠州)热电有限责任公司 | Three-dimensional digital intelligent design method and system |
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| CN114638838A (en) * | 2022-03-22 | 2022-06-17 | 先临三维科技股份有限公司 | Tooth model generation method, device, equipment and storage medium |
| CN115422613A (en) * | 2022-09-20 | 2022-12-02 | 国能(惠州)热电有限责任公司 | Three-dimensional digital intelligent design method and system |
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