CN106725920B - 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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- CN106725920B CN106725920B CN201611115607.XA CN201611115607A CN106725920B CN 106725920 B CN106725920 B CN 106725920B CN 201611115607 A CN201611115607 A CN 201611115607A CN 106725920 B CN106725920 B CN 106725920B
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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 methods of orthodontic appliance, and by colored 3D scanner, scanning obtains the threedimensional model of tooth, simplifies the design method of orthodontic appliance.
Description
Technical field
The present invention relates to orthodontic field more particularly to a kind of designing and manufacturing methods of orthodontic appliance.
Background technique
In recent years, mouth cavity orthodontic invisalign technology gradually 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 technology, with advanced production side
Method makes a kind of high molecule plastic appliance of personalization.The appliance can generate a certain size corrective force and make tooth by
Step is slowly mobile, thus the shortcomings that overcoming conventional orthodontic method.This method is to print to rescue by 3D printing molding machine
Dentognathic model in journey reuses positive pressure film laminator press process on the dentognathic model and goes out invisible orthotic device.
Patent CN102512251A discloses a kind of manufacturing method of invisible orthotic device, in the system of patient's tooth jaw physical model
It makes in step, tooth formpiston is made in tooth former model using gypsum, which is modified to wipe out gum
It is simultaneously placed in silicon rubber former by gypsum part corresponding to part again, is subsequently filled thermoplastic material to obtain by heat
Patient's tooth jaw physical model that plastic material and gypsum collectively constitute.Patent CN105748163A discloses a kind of area of computer aided
Tooth invisible orthotic device without bracket design method successively carries out the acquisition of tooth jaw three-dimensional grid model, tooth segmentation and Dental Erosion,
Then virtual gum grid building and virtual tooth occlusion building are carried out.Patent CN101940503A discloses a kind of for obtaining
The method of dental impression accurate three-dimensional model includes the following steps: at least one that 1) scans upper jaw impression and/or lower jaw impression
Point, obtain impression scanning figure；2) assess the quality of impression scanning figure and 3) if quality cannot be used for accurate three-dimensional mould
Type to obtain the model of the chamber, and scans the model and obtains mould then with one or more chambers of filler filling dental impression
Type scanning figure, and the model scanning figure and impression scanning figure are aligned and are combined, thus to obtain threedimensional model, 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
Thus to obtain threedimensional model or 4) it closes, if quality cannot be used for the accurate three-dimensional model of dental impression, uses impression scanning
Figure, to obtain threedimensional model, thus to obtain the accurate three-dimensional model of dental impression.
As it can be seen that needing to carry out three-dimensional tooth jaw mathematical model cutting process in the prior art, or just by Multiple-Scan
Accurate dentognathic model can be obtained, the corona model divided and gingival model cannot be disposably obtained, lead to 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 convenient and fast orthodontic appliance design
With production method.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of designing and manufacturing methods of orthodontic appliance.
The present invention is achieved by the following technical solutions:
A kind of designing and manufacturing method of orthodontic appliance, includes the following steps:
S1. the plaster cast that dental impressions are obtained with tooth jaw, carries out dyeing processing to every tooth of plaster cast；
S2. the plaster cast of dyeing is scanned, based on different colours obtain corona three-dimensional digitalization model and
The three-dimensional digitalization model of gum, by the tooth corona directional information and root of the tooth position of the three-dimensional digitalization model of corona and acquisition
Information compares verifying, according to tooth direction and root of the tooth location information, rebuilds the three-dimensional digitalization model of complete tooth；
S3. the three-dimensional digital dentognathic model after adjusting tooth to operate and obtaining correction is carried out to the three-dimensional digitalization model of tooth
Or three-dimensional digital appliance model, printing obtains dentognathic model or orthodontic appliance later.
Preferably, the tooth on plaster cast is dyed using different colours in the step S1, and covered entire
Corona part.
Preferably, adjacent teeth color is different after dyeing, and the color of gum portion and color of teeth difference.
Further, the plaster cast of dyeing is scanned by colour 3D scanner in the step S2, and be based on
The digital model of different colours acquisition different dental.
Further, the step S3 is specifically included:
S301. by adjusting tooth module to carry out adjusting tooth operation to the three-dimensional digitalization model of tooth, the opposite position of tooth is adjusted
It sets or absolute position and aligning, obtains a series of correction states passed through required for reaching orthodontic treatment purpose；
S302. the tooth jaw shape for predicting and rebuilding each correction state, generates three-dimensional digital dentognathic model or three-dimensional
Digitize appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
S303. the three-dimensional digital dentognathic model of acquisition or three-dimensional digital appliance model are imported into 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: according to three dimensions of the three-dimensional digitalization model of corona and gum
The position of word model obtains vertical direction axis；According to tooth position distributed acquisition plane tongue side to lip side direction axis, Yi Jishui
Flat axis of orientation establishes tooth jaw coordinate system；Tooth digital model is put into tooth jaw coordinate system and 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, mobile or rotation process is carried out to tooth, from
And achieve the effect that adjust tooth；During adjusting tooth, while showing the positional relationship of adjacent teeth, and prompt is provided to impact severity；
During adjusting tooth, while showing that the distance of this movement of tooth and angle and tooth add up mobile distance and angle, and right
Operation beyond pre-determined distance or angle provides warning.
Further, during the tune tooth of the step S301, confirm that primary tune tooth work terminates using interactive mode；It adjusts
The moving process that can be inputted based on preset threshold to user during tooth or after adjusting tooth is decomposed, primary mobile point
Solution guarantees that each amount of movement is no more than preset threshold to be continuous repeatedly mobile；During adjusting tooth, above-mentioned decomposable process
It can be for single or multiple teeth while being operated；During adjusting tooth, above-mentioned decomposable process is prevented by given threshold
The case where middle degree that collides because of tooth position variation is deepened, when the collision of generation exceeds threshold value, adjusts tooth module automatic
The mobile sequence and rate of adjustment two sides tooth are attempted, to avoid collision；During adjusting tooth, multiple tune tooth stages of automatic classifying
It can be demonstrated by visualization device, and further adjust the change in location in wherein any one stage by user, to reach user
Promising result.
Further, it treats straightening of teeth position to carry out repeatedly adjusting tooth, sequentially occur in entire correcting process to obtain
A series of rescue state.
The beneficial effects of the present invention are:
(1) designing and manufacturing method of a kind of orthodontic appliance of the invention is dyed laggard by the plaster cast to tooth
Row colour 3D scanning, can be with the three-dimensional digitalization model of quick obtaining corona and gum；
(2) designing and manufacturing method of a kind of orthodontic appliance of the invention, scanning directly acquire the three-dimensional of corona and gum
Digital model does not need to carry out cutting process later, simplifies the generation method of model, avoid digital model and divided
Issuable error in journey；
(3) present invention calculates the tooth bearing data for obtaining three-dimensional digitalization model by automation；
(4) designing and manufacturing method of a kind of orthodontic appliance of the invention, it is easy to operate, adjust tooth it is accurate, improve tooth
Correction efficiency and effect.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without creative labor, belongs to protection of the present invention
Range.
Embodiment 1
The invention discloses a kind of designing and manufacturing methods of orthodontic appliance, include the following steps:
S1. the plaster cast that dental impressions are obtained with tooth jaw, carries out dyeing processing to every tooth of plaster cast, 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 dyed, it is different at interval of the color of a tooth, and entire corona part is covered, and
And the color caught and the true qualities of tooth and gum are all different, and are distinguished tooth and gum by different colors, and will
Single tooth distinguishes；
Panoramic radiograph and oral cavity lateral projection are analyzed by image analytical method, obtains tooth corona directional information and root of the tooth position
Confidence breath；
S2. the plaster cast of dyeing is scanned by colour 3D scanner, obtains the three of corona based on different colours
The three-dimensional digitalization model of dimension word model and gum, by the tooth corona side of the three-dimensional digitalization model of corona and acquisition
Verifying is compared to information and root of the tooth location information, according to tooth direction and root of the tooth location information, rebuilds complete tooth
Three-dimensional digitalization model substantially increases the formation efficiency of tooth model, and it is subsequent do not need to model carry out cutting process
It can be carried out the orthodontic procedure of next step tooth；
S3. the three-dimensional digital dentognathic model after adjusting tooth to operate and obtaining correction is carried out to the three-dimensional digitalization model of tooth
Or three-dimensional digital appliance model, printing obtains dentognathic model or appliance later.It specifically includes:
S301. by adjusting tooth module to carry out adjusting tooth operation to the three-dimensional digitalization model of tooth, the opposite position of tooth is adjusted
It sets or absolute position and aligning, obtains a series of correction states passed through required for reaching orthodontic treatment purpose；
Minimum bounding box algorithm refers to that searching can wrap the hexahedron of confining space, and it is the smallest to find volume by alternative manner
Hexahedron.
Point cloud data distribution refers to that adjacent edge is reference axis using some vertex 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 is set as, other two axis is respectively X-axis and Y-axis.Since 3D point cloud data are face data, tooth bottom missing.Using
Tooth point cloud data is parallel to X/Y plane and makes section, can obtain cyclic annular point cloud mostly, and since tooth bottom lacks, it is most
In the case of be parallel to other planes and make section and cannot obtain cyclic annular point cloud.It, can be from three change in coordinate axis direction according to this characteristic
Middle determining tooth direction.
Vertical direction axis is obtained according to the position of the three-dimensional digitalization model of corona and the three-dimensional digitalization model of gum；Root
According to tooth position distributed acquisition plane tongue side to lip side direction axis and horizontal direction axis, tooth jaw coordinate system is established；Wherein three
Axis is tongue side respectively to lip side direction, gum to corona direction and the direction parallel with lip；Tooth digital model is put
Enter tooth jaw coordinate system and 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, mobile or rotation process is carried out to tooth, to achieve the effect that adjust tooth；Adjust tooth mistake
Cheng Zhong, while showing the positional relationship of adjacent teeth, and prompt is provided to impact severity；During adjusting tooth, while showing tooth
The distance and angle and tooth of this movement add up mobile distance and angle, and to the behaviour beyond pre-determined distance or angle
Provide warning.
Confirm that primary tune tooth work terminates using interactive mode；It can be based on default threshold after adjusting tooth in the process or adjusting tooth
The moving process that value inputs user decomposes, and primary movement is decomposed into continuous repeatedly movement, and guarantee every time
Amount of movement is no more than preset threshold；During adjusting tooth, above-mentioned decomposable process can be for single or multiple teeth while carry out
Operation；During adjusting tooth, prevent from adding in above-mentioned decomposable process because tooth position changes the degree of colliding by given threshold
Deep situation adjusts tooth module to automatically attempt to the mobile sequence and rate of adjustment two sides tooth when the collision of generation exceeds threshold value,
To avoid collision；During adjusting tooth, multiple tune tooth stages of automatic classifying can be demonstrated by visualization device, and by user into one
The change in location in successive step wherein any one stage, to reach customer satisfaction system effect.
The threedimensional model adjusted and rebuild after tooth is obtained by CT scan, and is matched with three-dimensional digital dentognathic model, CT
It is more comprehensive to scan the threedimensional model generated, includes tooth, tooth jawbone, alveolar bone etc., can observe in tooth moving process
The range for whether having exceeded alveolar bone avoids the excessive adjusting to tooth position；If root of the tooth moves out the range of alveolar bone,
Reuse adjuster tune tooth；If the mobile range without departing from alveolar bone of root of the tooth, continues step S302.
S302. the tooth jaw shape for predicting and rebuilding each correction state, generates three-dimensional digital dentognathic model or three-dimensional
Digitize appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
Gum curved surface and tooth surface chart after correction can also be obtained generate the three-dimensional digital tooth jaw mould of cavity structure
Type or three-dimensional digital appliance model；Support construction necessary to printer model is directly generated in the cavity of dentognathic model,
Based on the roots of the tooth of adjacent three or four teeth after adjusting tooth, corona information, gum curved surface is generated.
During generating gum curved surface, 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 method:
Method one: setting negative camber for gum curved surface and exterior of teeth, then extends to the outside generation positive camber, inside and outside
Surface composition generates the appliance model that can directly print.
Method two: setting positive camber for gum curved surface and exterior of teeth, and then inwardly extended generation negative camber, inside and outside
Surface composition generates the cavity structure of tooth jaw, i.e. printable dentognathic model.
S303. the three-dimensional digital dentognathic model of acquisition or three-dimensional digital appliance model are imported into 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 carry out repeatedly adjust tooth, thus obtain sequentially occur in entire correcting process it is a series of rectify
Control state.
Embodiment 2
The invention discloses a kind of designing and manufacturing methods of orthodontic appliance, include the following steps:
S1. the plaster cast that dental impressions are obtained with tooth jaw, carries out dyeing processing to every tooth of plaster cast, 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 dyed, and covers entire corona part, the face that adjacent teeth is caught different colors, and caught
The true qualities of color and tooth and gum are all different, and are distinguished tooth and gum by different colors, and by single tooth area
It separates；
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 location information；
S2. the plaster cast of dyeing is scanned by colour 3D scanner, obtains the three of corona based on different colours
The three-dimensional digitalization model of dimension word model and gum, by the tooth corona side of the three-dimensional digitalization model of corona and acquisition
Verifying is compared to information and root of the tooth location information, according to tooth direction and root of the tooth location information, rebuilds complete tooth
Three-dimensional digitalization model substantially increases the formation efficiency of tooth model, and it is subsequent do not need to model carry out cutting process
It can be carried out the orthodontic procedure of next step tooth；
S3. the three-dimensional digital dentognathic model after adjusting tooth to operate and obtaining correction is carried out to the three-dimensional digitalization model of tooth
Or three-dimensional digital appliance model, printing obtains dentognathic model or appliance later.It specifically includes:
S301. by adjusting tooth module to carry out adjusting tooth operation to the three-dimensional digitalization model of tooth, the opposite position of tooth is adjusted
It sets or absolute position and aligning, obtains a series of correction states passed through required for reaching orthodontic treatment purpose；
Minimum bounding box algorithm refers to that searching can wrap the hexahedron of confining space, and it is the smallest to find volume by alternative manner
Hexahedron.
Point cloud data distribution refers to that adjacent edge is reference axis using some vertex 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 is set as, other two axis is respectively X-axis and Y-axis.Since 3D point cloud data are face data, tooth bottom missing.Using
Tooth point cloud data is parallel to X/Y plane and makes section, can obtain cyclic annular point cloud mostly, and since tooth bottom lacks, it is most
In the case of be parallel to other planes and make section and cannot obtain cyclic annular point cloud.It, can be from three change in coordinate axis direction according to this characteristic
Middle determining tooth direction.
Vertical direction axis is obtained according to the position of the three-dimensional digitalization model of corona and the three-dimensional digitalization model of gum；Root
According to tooth position distributed acquisition plane tongue side to lip side direction axis and horizontal direction axis, tooth jaw coordinate system is established, wherein three
Axis is tongue side respectively to lip side direction, gum to corona direction and the direction parallel with lip；Tooth digital model is put
Enter tooth jaw coordinate system and 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, mobile or rotation process is carried out to tooth, to achieve the effect that adjust tooth；Adjust tooth mistake
Cheng Zhong, while showing the positional relationship of adjacent teeth, and prompt is provided to impact severity；During adjusting tooth, while showing tooth
The distance and angle and tooth of this movement add up mobile distance and angle, and to the behaviour beyond pre-determined distance or angle
Provide warning.
Confirm that primary tune tooth work terminates using interactive mode；It can be based on default threshold after adjusting tooth in the process or adjusting tooth
The moving process that value inputs user decomposes, and primary movement is decomposed into continuous repeatedly movement, and guarantee every time
Amount of movement is no more than preset threshold；During adjusting tooth, above-mentioned decomposable process can be for single or multiple teeth while carry out
Operation；During adjusting tooth, prevent from adding in above-mentioned decomposable process because tooth position changes the degree of colliding by given threshold
Deep situation adjusts tooth module to automatically attempt to the mobile sequence and rate of adjustment two sides tooth when the collision of generation exceeds threshold value,
To avoid collision；During adjusting tooth, multiple tune tooth stages of automatic classifying can be demonstrated by visualization device, and by user into one
The change in location in successive step wherein any one stage, to reach customer satisfaction system effect.
The threedimensional model adjusted and rebuild after tooth is obtained by CT scan, and is matched with three-dimensional digital dentognathic model, CT
It is more comprehensive to scan the threedimensional model generated, includes tooth, tooth jawbone, alveolar bone etc., can observe in tooth moving process
The range for whether having exceeded alveolar bone avoids the excessive adjusting to tooth position；If root of the tooth moves out the range of alveolar bone,
Reuse adjuster tune tooth；If the mobile range without departing from alveolar bone of root of the tooth, continues step S302.
S302. the tooth jaw shape for predicting and rebuilding each correction state, generates three-dimensional digital dentognathic model or three-dimensional
Digitize appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；
Gum curved surface and tooth surface chart after correction can also be obtained generate the three-dimensional digital tooth jaw mould of cavity structure
Type or three-dimensional digital appliance model；Support construction necessary to printer model is directly generated in the cavity of dentognathic model,
Based on the roots of the tooth of adjacent three or four teeth after adjusting tooth, corona information, gum curved surface is generated.
During generating gum curved surface, 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 method:
Method one: setting negative camber for gum curved surface and exterior of teeth, then extends to the outside generation positive camber, inside and outside
Surface composition generates the appliance model that can directly print.
Method two: setting positive camber for gum curved surface and exterior of teeth, and then inwardly extended generation negative camber, inside and outside
Surface composition generates the cavity structure of tooth jaw, i.e. printable dentognathic model.
S303. the three-dimensional digital dentognathic model of acquisition or three-dimensional digital appliance model are imported into 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 carry out repeatedly adjust tooth, thus obtain sequentially occur in entire correcting process it is a series of rectify
Control state.
The beneficial effects of the present invention are:
(1) designing and manufacturing method of a kind of orthodontic appliance of the invention is dyed laggard by the plaster cast to tooth
Row colour 3D scanning, can be with the three-dimensional digitalization model of quick obtaining corona and gum；
(2) designing and manufacturing method of a kind of orthodontic appliance of the invention, scanning directly acquire the three-dimensional of corona and gum
Digital model does not need to carry out cutting process later, simplifies the generation method of model, avoid digital model and divided
Issuable error in journey；
(3) present invention calculates the tooth bearing data for obtaining three-dimensional digitalization model by automation；
(4) designing and manufacturing method of a kind of orthodontic appliance of the invention, it is easy to operate, adjust tooth it is accurate, improve tooth
Correction efficiency and effect.
The above is a preferred embodiment of the present invention, it should be noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (7)
1. a kind of designing and manufacturing method of orthodontic appliance, which comprises the steps of:
S1. the plaster cast that dental impressions are obtained with tooth jaw, carries out dyeing processing to every tooth of plaster cast；
S2. the plaster cast of dyeing is scanned, the three-dimensional digitalization model and gum of corona is obtained based on different colours
Three-dimensional digitalization model, by the tooth corona directional information and root of the tooth location information of the three-dimensional digitalization model of corona and acquisition
Verifying is compared, according to tooth direction and root of the tooth location information, rebuilds the three-dimensional digitalization model of complete tooth；
S3. the three-dimensional digital dentognathic model or three after adjusting tooth to operate and obtaining correction is carried out to the three-dimensional digitalization model of tooth
Dimension word appliance model, printing obtains dentognathic model or orthodontic appliance later；
The step S3 is specifically included:
S301. it by adjusting tooth module to carry out adjusting tooth operation to the three-dimensional digitalization model of tooth, adjusts the position of tooth and comes into line
Denture obtains the multiple correction stages passed through required for reaching orthodontic treatment purpose；Specifically, according to the three-dimensional digital of corona
The position of the three-dimensional digitalization model of model and gum obtains vertical direction axis；It is arrived according to tooth position distributed acquisition plane tongue side
Lip side direction axis and horizontal direction axis establish tooth jaw coordinate system；Tooth digital model is put into tooth jaw coordinate system and carries out position
It sets or angular adjustment operates；
S302. the tooth jaw shape for predicting and rebuilding each correction state, generates three-dimensional digital dentognathic model or 3-dimensional digital
Change appliance model；The three-dimensional digital dentognathic model is entity structure or hollow structure；Specifically, after by obtaining correction
Gum curved surface and tooth surface chart, the three-dimensional digital dentognathic model or three-dimensional digital after generating the correction of cavity structure be hidden
Shape appliance model；It include support construction necessary to generating printer model in the cavity of the dentognathic model；
S303. the three-dimensional digital dentognathic model of acquisition or three-dimensional digital appliance model are imported into 3D printing equipment, printing
Obtain dentognathic model or appliance；After printing obtains dentognathic model, orthodontic appliance is made using the method for press mold.
2. a kind of designing and manufacturing method of orthodontic appliance according to claim 1, which is characterized in that in the step S1
The tooth on plaster cast is dyed using different colours, and covers entire corona part.
3. a kind of designing and manufacturing method of orthodontic appliance according to claim 2, which is characterized in that phase adjacent teeth after dyeing
The color of tooth is different.
4. a kind of designing and manufacturing method of orthodontic appliance according to claim 3, which is characterized in that in the step S2
The plaster cast of dyeing is scanned by colored 3D scanner, obtains the three-dimensional digital of corona corresponding to different colours
The three-dimensional digitalization model of model and gum.
5. a kind of designing and manufacturing method of orthodontic appliance according to claim 1, which is characterized in that the step S301
In position and tooth jaw coordinate system in tooth jaw of tooth, gum, tooth coordinate system, tooth shown by visualization device；It is logical
Dragging tooth direction signs are crossed, mobile or rotation process is carried out to tooth, to achieve the effect that adjust tooth；During adjusting tooth,
It shows the positional relationship of adjacent teeth simultaneously, and prompt is provided to impact severity；During adjusting tooth, while showing this shifting of tooth
Dynamic distance and angle and tooth add up mobile distance and angle, and provide to the operation beyond pre-determined distance or angle
Warning.
6. a kind of designing and manufacturing method of orthodontic appliance according to claim 5, which is characterized in that the step S301
Tune tooth during, confirmed using interactive mode and primary tooth work adjusted to terminate；Based on default after adjusting tooth in the process or adjusting tooth
The moving process that threshold value inputs user decomposes, and primary movement is decomposed into continuous repeatedly movement, and guarantee every time
Amount of movement be no more than preset threshold；During adjusting tooth, decomposition is for single or multiple teeth while to be operated；Adjust tooth mistake
Cheng Zhong, by given threshold prevent in above-mentioned decomposable process because tooth position variation collide degree deepen the case where, when
When the collision of generation exceeds threshold value, tooth module is adjusted to automatically attempt to the mobile sequence and rate of adjustment two sides tooth, to avoid collision；
During adjusting tooth, multiple tune tooth stages of automatic classifying can be demonstrated by visualization device, and further be adjusted wherein by user
The change in location in any one stage.
7. a kind of designing and manufacturing method of orthodontic appliance according to claim 6, which is characterized in that treat straightening of teeth
Position carries out repeatedly adjusting tooth, to obtain the multiple correction stages sequentially occurred in entire correcting process.
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| JP7178013B2 (en) * | 2019-03-18 | 2022-11-25 | アリッド株式会社 | Dental model virtualization method |
| 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 |
| CN115422613B (en) * | 2022-09-20 | 2023-04-07 | 国能(惠州)热电有限责任公司 | Three-dimensional digital intelligent design method and system |
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