CN108056829A - A kind of method for being used to that tooth to be promoted to reposition dental treatment - Google Patents
A kind of method for being used to that tooth to be promoted to reposition dental treatment Download PDFInfo
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- CN108056829A CN108056829A CN201710978944.XA CN201710978944A CN108056829A CN 108056829 A CN108056829 A CN 108056829A CN 201710978944 A CN201710978944 A CN 201710978944A CN 108056829 A CN108056829 A CN 108056829A
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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
- 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
- A61C2007/004—Automatic construction of a set of axes for a tooth or a plurality of teeth
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Abstract
A kind of method for tooth to be promoted to reposition dental treatment includes：Receive the CT scan of patient oral cavity dental structure, receive the optical scanner of patient oral cavity dental structure, registering CT scan and optical scanner, the initial model of patient oral cavity dental structure is established based on CT scan and optical scanner, simulate tooth movement, the final mask of preferable patient oral cavity dental structure after generation treatment, generation represents multiple mid-modules of the patient oral cavity dental structure of the continuous tooth movement from initial model to final mask, and prepares dental appliance based on multiple models of patient oral cavity dental structure.
Description
Technical field
This patent disclosure relates generally to correction fields.It is more particularly related to a kind of be used to that tooth to be promoted to reposition
The method of dental treatment.
Background technology
Doctor routinely realizes repositioning teeth by wearing " orthodontic bracket ".Orthodontic bracket is installed to the tooth of patient
It is cumbersome and time-consuming task on tooth.Therefore, conventional orthodontic treatment is very inconvenient.Doctor wears also by patient
" rectifier " realizes repositioning teeth.One group of rectifier is mounted on the tooth of patient by stages, gradually by tooth
From initial teeth arrangement, final teeth arrangement is repositioned onto by several intermediate tooth arrangements.
Rectifier is substantially a series of dental brace type models inferred based on corona design data and by tooth position.
There are four parts for oral cavity dental structure：The occluding relation of corona, root of the tooth, soft tissue and lower jaw and the upper jaw.Rectifier is based only upon
Corona design data, therefore the anatomical structure of patient cannot be represented completely, usually occur in therapeutic process with actual intermediate teeth
Arrange unmatched situation.Therefore, rectifier is frequently necessary to redesign and remakes to complete repositioning processing.
A kind of design method of tooth re-positioning device is needed now, and the design of wherein rectifier is based on corona, tooth
The joint of root, soft tissue and lower jaw and the upper jaw, and this rectifier properly represents the anatomical structure of patient.
The content of the invention
A kind of method for tooth to be promoted to reposition dental treatment includes：The CT for receiving patient oral cavity dental structure is swept
It retouches, the optical scanner of patient oral cavity dental structure, the registering CT scan and the optical scanner is received, based on the CT scan
The initial model of patient oral cavity dental structure is established with the optical scanner, simulates tooth movement to generate desired control
The final mask of patient oral cavity dental structure after treatment, generation are represented from the initial model to the final mask
Multiple mid-modules of the patient oral cavity dental structure of continuous tooth movement, and based on patient oral cavity dental structure
The multiple model prepare dental appliance.
This method, which further includes, splits the tooth data of the CT scan to obtain the CT scan of segmentation, and the CT of the segmentation is swept
It retouches including corona data and root data.
This method, which further includes, splits the corona data of the optical scanner to obtain the optical scanner of segmentation, the segmentation
Optical scanner includes soft tissue data.
In the method, it is described establish patient oral cavity dental structure initial model be CT scan based on the segmentation and
The optical scanner of the segmentation.
In the method, the CT scan of patient oral cavity dental structure is to open jaw angle to patient oral cavity dentistry with first
The CT scan of structure, the optical scanner of patient oral cavity dental structure are to open jaw angle to patient oral cavity dental structure with second
Optical scanner, and first opens jaw angle and second to open difference between jaw angle be 1 degree or bigger.
This method further includes based on the CT scan, the optical scanner or both to create virtual joint, the simulation
Tooth movement is the adjustment based on the virtual joint and the movement of individual tooth.
This method is further included under the temporo of the CT scan, the optical scanner or both generation patient oral cavity dental structure
The axis in jaw joint and when creating the virtual joint apply the axis.
This method, which further includes, splits the tooth data of the CT scan to obtain the CT scan of segmentation, splits the optics and sweeps
Optical scanner of the corona data retouched to obtain segmentation and the CT scan based on the segmentation and the optical scanner of the segmentation
Create virtual joint；The CT scan of the segmentation includes corona data and root data, and the optical scanner of the segmentation is including soft
Organize data；It is described establish patient oral cavity dental structure the initial model be the CT scan based on the segmentation, described point
Optical scanner cut or both, the simulation tooth movement are the adjustment based on the virtual joint and the movement of individual tooth.
In the method, the CT scan and the optical scan data are shown in 3D rendering and 2D images, described
3D rendering and 2D images include the jawbone area data around tooth, and for the jawbone area data assessment tooth around tooth
Tooth repositions dental treatment.
In the method, in the tooth repositions dental treatment, can be moved multiple teeth as single entity
It is dynamic.
A kind of method for tooth to be promoted to reposition dental treatment includes：It receives and opens jaw angle to patient mouthful with first
The scanning of chamber dental structure, receives and opens scanning of the jaw angle to patient oral cavity dental structure with second, and registration described first opens jaw
Jaw angle is opened in the scanning that the scanning of angle opens jaw angle with described second, the scanning for opening jaw angle based on described first and described second
The initial model of patient oral cavity dental structure is established in the scanning of degree, simulates tooth movement to generate the institute after desired treatment
The final mask of patient oral cavity dental structure is stated, the continuous tooth that generation represents from the initial model to the final mask moves
Multiple mid-modules of dynamic patient oral cavity dental structure, and based on the multiple centre of patient oral cavity dental structure
Model prepares dental appliance, wherein described first opens jaw angle and described second to open difference between jaw angle be 1 degree or more.
This method further includes segmentation described first and opens the tooth data of jaw angle scanning to obtain the first point for opening jaw angle
It cuts scanning and segmentation described second opens the corona data of jaw angle scanning to obtain the second segmentation scanning for opening jaw angle.
In the method, the initial model for establishing patient oral cavity dental structure is to open jaw angle based on described first
The segmentation scanning of degree, described second open segmentation scanning of jaw angle or both.
This method further include based on described first open the scanning of jaw angle, described second open scanning of jaw angle or both come
Virtual joint is created, the adjustment simulation tooth movement moved based on the virtual joint and individual tooth.
The method further includes：The scanning of jaw angle is opened from described first, described second opens the scanning or both of jaw angle
It generates the axis of the remporomandibular joint of patient oral cavity dental structure and the axis is applied when creating the virtual joint.
This method further includes segmentation described first and opens the tooth data of jaw angle scanning to obtain the first point for opening jaw angle
Scanning is cut, segmentation described second is opened the corona data of jaw angle scanning and scanned to obtain the second segmentation for opening jaw angle, and base
The segmentation scanning of jaw angle is opened in described first, the described second segmentation scanning or both for opening jaw angle creates virtual joint.
It is described establish patient oral cavity dental structure the initial model be based on described first open jaw angle segmentation scanning, described the
Two open segmentation scanning of jaw angle or both, and the movement of the simulation tooth is based on the virtual joint.
In the method, the scanning of patient oral cavity dental structure is CT scan or optical scanner.
A kind of computer readable storage medium, is stored thereon with computer program, which is executed by processor
The step of Shi Shixian any of the above the methods.
It should be appreciated that the general description of front and it is described in detail below be all exemplary and illustrative, and be intended to carry
For the further explanation to the present invention for required protection.
Description of the drawings
It is included to the attached of the part that a further understanding of the present invention is provided and is incorporated and constitutes this specification
Show the embodiment of the present invention, and the principle for explaining the present invention together with specification.
In the accompanying drawings：
Fig. 1 a are the CT scan for showing patient in the transversal surface models of 2D；
Fig. 1 b are the CT scan for showing patient in 3D patterns；
Fig. 2 is to show the patient oral cavity dental structure in jaw angle is opened；
Fig. 3 is to show patient oral cavity dental structure in the close position；
Fig. 4 is the dental models for showing patient oral cavity dental structure；
Fig. 5 to show using ICP registrations CT scan and optical scanner, wherein three points on each image represent for
Datum mark with two scanning；
Fig. 6 is the optical scanner shown with CT scan registration；
Fig. 7 is to show two by virtual joint generation based on the CT scan and optical scanner that jaw angle is opened with difference
Different opens jaw angle；
Fig. 8 is the axis for the remporomandibular joint for showing patient oral cavity dental structure；
Fig. 9 is the segmentation for showing the tooth structure by threshold process so that operating personnel can only select high density area
Domain；
Figure 10 is the segmentation for showing the tooth structure by threshold process so that operating personnel can preferably select tooth
Region, and further select interested tooth with the software tool；
Figure 11 is to show obtained tooth model；
Figure 12 is to show for interested tooth limited boundary, wherein border of the border between soft tissue and corona
Place；
Figure 13 is to show for interested tooth limited boundary, including corona and surrounding tissue；
Figure 14 is to show that tooth is all split from model；
Figure 15 is the tooth for showing moving；In left side, with positioning instrument moving teeth, i.e. its corona and root of the tooth；
Right side, mobile corona, metaplasia；
Figure 16 is the displacement for showing to define the point on tissue regions compared with the distance between this point and tooth border
Function；
Figure 17 is the movement for showing the tooth in CT fault imagings；
Figure 18 is to show to be designed to the attachment for contributing to moving teeth；
Figure 19 a are Shell model, rectifier and the tooth shown below rectifier；In Figure 19 a, dotted line represents housing
Model or rectifier, solid line represent the tooth below rectifier；The offset on surface can generate moving teeth as shown by arrows
Power；Figure 19 b are to show original tooth model, have the tooth model of local deformation, apply the rectifier that the distorted pattern makes
Additional force is added on actual tooth and generated with the elevated regions of moving teeth；
Figure 20 is the combination for the geometry inexact matching tooth for showing rectifier.
Specific embodiment
It will be apparent from the implementation of the present invention now, example is shown in the drawings.
The present invention provides a kind of for promoting the method that tooth repositions dental treatment.This method includes：It receives and suffers from
The CT scan of person oral cavity dental structure receives the optical scanner of patient oral cavity dental structure, the registering CT scan and the light
Scanning is learned, the initial model of patient oral cavity dental structure is established based on the CT scan and the optical scanner, simulation tooth moves
The dynamic final mask with the generation patient oral cavity dental structure after desired dental treatment, generation are represented from the introductory die
The multiple mid-modules for the patient oral cavity dental structure that the continuous tooth of type to the final mask moves, and based on patient mouthful
The multiple mid-module of chamber dental structure prepares dental appliance.
CT scan, also referred to as X ray computer tomography or computed axial tomographic scan, using from difference
The computer disposal of multiple radioscopic images of angle shot combines to generate the cross section (tomography of the specific region of sweep object
Photography) image (virtual " tomography ").Here, sweep object is patient oral cavity dental structure.
First, CT scan is obtained for patient.The data of the CT scan are observed in computer systems, and perform 3D weights
It builds to show the CT layer datas in the 3 d space, Fig. 1 a are the 2D CT scan of patient, and Fig. 1 b are the 3D CT scan of patient.
When obtaining the CT scan of both the upper jaw and lower jaw in single pass, double jaws of patient can have difference
Position：With some soft and lightweight materials, such as cotton pad, the upper lower jaw of separation obtains point jaw position or jaw in closure
Position.In order to describe patient's jaw position, using opening one word of jaw angle.The jaw angle of opening is defined as by representing the flat of patient's upper jaw
Face and represent the angle that the plane of patient's lower jaw is formed.When jaw is closed completely, which is considered as 0.
Fig. 2 is to show out patient oral cavity dental structure that jaw angle is a, and it can be 0-50 degree to open jaw angle (a).When opening jaw
When angle (a) is 0 degree (plane for representing patient's upper jaw is parallel with the plane for representing patient's lower jaw), at the dental structure of patient oral cavity
In closed position.Fig. 3 is to show patient oral cavity dental structure in the close position.
When the jaw of patient, which has, opens jaw angle (a), CT scan is obtained.It can be 0-50 degree to open jaw angle (a).For example,
When it is 0 degree, 1 degree, 5 degree, 8 degree or 10 degree that jaw angle is opened described in the jaw of patient, CT scan is obtained.
Next, obtain the optical scanner of patient oral cavity dental structure.Scanner in mouth can be used, is suffered from by scanning
The tooth and gum of person directly acquires data.The dental models of patient oral cavity dental structure can also be made, then using any
Optical scanner scans the model, to obtain the mathematical model of tooth and gum.
Similar to CT scan, optical scanner is obtained.Fig. 4 is the dental models for showing patient oral cavity dental structure.Work as patient
Jaw have when opening jaw angle (a).It can be 0-50 degree to open jaw angle (a).For example, when patient jaw open jaw angle for 0 degree,
At 1 degree, 5 degree, 8 degree or 10 degree, the optical scanner is obtained.
Better choice is when the jaw angle (a) of opening of the jaw of patient obtains optics when opening jaw angle different from CT scan and sweeps
It retouches.Specifically, CT scan is obtained when the jaw of patient has first to open jaw angle, and when the jaw of patient has second to open jaw
Optical scanner is obtained during angle.Described first open jaw angle and described second open difference between jaw angle for 1 degree or more, 5 degree with
Above, 8 degree or more or 10 degree or more.For example, first opens jaw angle as 0 degree, second opens jaw angle as 1 degree, 5 degree, 8 degree or 10 degree.
Optical scanner can be that there are two one digital documents of an individual digit file of jaw or each jaw for tool.If
Two jaws are placed in single file, then can use computer approach so that in the stage later, they can be divided into
Two individual parts；In the rest part of the present invention, the optical scanner will be used as two models or two files, wherein
One jaw, one file.But this is not that implementation is essential to the invention.
In the next step, computer system will have module with load both CT data and optical scan data and by it
Be aligned together.
Computer system will use point or the matched method for registering of patch based on two jaws.By taking the upper jaw as an example, system
It will show both CT data and upper gnathode.User can specify the position in CT data using automated process or hand-operated tools
(point or region), these positions correspond to the position of optical scanner.
Using the algorithm of such as " iteration closest approach " (ICP) region specified can be matched, thus will create conversion with
The optical data of jaw is moved to the position of CT data.Fig. 6 is to show to use ICP registrations CT scan and optical scanner.
When obtaining CT scan when the jaw of patient has first to open jaw angle, when the jaw of patient opens jaw angle with second
Obtain optical scanner, and described first open jaw angle and described second open difference between jaw angle for 1 degree or more, 5 degree or more,
8 degree or more or 10 degree or more, obtain the data group of two jaw positions.This create the virtual joints of two jaws.It can use soft
Part instrument come in push away or extrapolation described in joint position, then can simulate the opening and closing of jaw.Fig. 7 is to show to be based on having
Difference opens the CT scan of jaw angle and the virtual joint of optical scanner.
When with identical, when opening jaw angle acquisition both CT and optical scanner, which cannot be established.This
In the case of, remporomandibular joint is used to limit the joint of jaw.Virtual axis can be specified by checking CT scan and identifying joint.
The movement of lower jaw is extremely complex, but can be reduced to the rotation around remporomandibular joint.Pass through CT scan and/or light
Scanning is learned, the axis of the remporomandibular joint of patient oral cavity dental structure can be established.Then the axis can be applied to wound
Build virtual joint.Fig. 8 is the axis for the remporomandibular joint for showing patient oral cavity dental structure.
In the next step, CT scan is handled to separate root of the tooth.Image processing process is used for 3D models and 2D tomographies
Imaging is associated.Partition tools are used to create individual root model from CT data sets, are created on CT data sets and correspond to sense
The region of the tooth of interest.And instrument is used for individual tooth, at least part corona and CT data separatings.
Two image windows are shown in computer systems.The system is furnished with threshold value instrument, can change the threshold of 2D views
It is worth and accordingly updates 3D imagings.For individual tooth, user can adjust threshold value so that root data is properly filtered.
The pixel of a tooth or tooth group is captured from CT data using segmentation or cutting tool.Turned for the 3D pixels of tooth data
Change the 3D surface models represented by the geometric data in such as face and point into.
Fig. 9 is the segmentation for showing the tooth structure by threshold process so that only selects high-density region.
Figure 10 is the segmentation for showing the tooth structure by threshold process so that selects the good area of tooth, instrument is used
In further selecting interested tooth.
Figure 11 is to show obtained tooth model.
According to current teeth arrangement or orthodontic treatment demand, user can in one operation for individual root of the tooth or
Multiple roots of the tooth create model.Multiple operations are performed to obtain the entire tooth structure of patient.It may need to identical CT data sets
Or the upper jaw and lower jaw of the patient of different data collection applies identical operation.
Next, the optical data that jaw will be handled so that corona and soft tissue model can be obtained.Similar to CT data point
The method cut, corona can be individually separated, and can also be separated in groups.For example, user, which will only specify, surrounds two corona borders
Point, and system is using tie point as ring, and by corona model that the regional choice in ring is lower tooth/multiple lower tooths.
Border between corona and corona and soft tissue need not be totally separated.Corona can be with from the separation of optical data
Including only splitting crown region or segmentation crown region and the soft tissue around some.Reason there are two so doing：1) model or
Optical scanner may not generate the clear boundary of corona；2) user determines that it is to have to move together some surrounding tissues with corona
It helps.This will also be resolved in metaplasia step.
Figure 12 is to show for interested tooth limited boundary, wherein border of the border between soft tissue and corona
Place.
Figure 13 is to show for interested tooth limited boundary, including corona and surrounding tissue.
After all corona models of segmentation optical scanner, the remaining area on mathematical model is considered as soft tissue.
On this time point, have been set up that there is root of the tooth, jawbone, corona, soft tissue and the oral cavity in joint dentistry knot
The complete model of structure.The second stage of this method is simulation tooth movement.User will determine the movement of tooth by various standards
Amount and mode, the aesthetics of such as teeth arrangement, the occlusion of jaw, the skeletal structure of surrounding and bone density and joint are all available
Foundation.
The joint position of jaw can be used for jaw is made entirely to move, to determine the optimum target position of entire jaw.User can be with
Adjust joint angles.Then individual tooth or tooth group are repositioned, to simulate treatment results.Visual chemical industry will be provided a user
Tool, to understand how tooth moves.
Each in tooth or tooth group can be shown as to the combination of root of the tooth and corona or CT data and optical data
Combination.Therefore, when tooth moves, system will show how root of the tooth correspondingly moves.Movement can be in CT tomographies and 3d space
Middle display.In CT tomographies, user can assess the bone density of tooth peripheral region, and determine that movement is easy or difficult.
In the 3 d space, it can be seen that any possible collision of corona and root of the tooth.Whether feedback tool can for alerting user's movement
Cause collision.
Figure 14 is to show that tooth is split from model and shown with different colors.
When simulating tooth movement, change point/patch of the tissue model with the corresponding number of teeth.When tooth moves,
Surrounding tissue area can deform to follow movement.With tooth border similar in point will be moved together with border, it is farther apart from border
Region will mobile smaller distance.This method will ensure that tooth movement is usually complied in the deformation of soft tissue.
Soft Tissue Deformation is automated procedure.For the borderline each point of tooth, there will be the tops of adjacent area or grid
Point.This is used to represent surface model.These points form the candidate set of deformation together.When tooth is moved, all these points will
" to be moved " and " non-to be moved " are re-classified as compared with tooth.In addition, the distance between point and tooth border will be used for
Calculate how point will move.For example, Gaussian distribution model is used to ensure that the displacement of point " to be moved " will be on 0 and tooth border most
Between close point, point " non-to be moved " will have 0 displacement.
As a result, the deformation of model is obtained, without creating new topology element on model.
Figure 15 is the tooth for showing moving.In left side, with positioning instrument moving teeth, i.e. its corona and root of the tooth.
Right side, mobile corona, metaplasia.
It is moved with all teeth of plan, this method has the final tooth position of both corona and root of the tooth now, soft
The final deformation of tissue.Therefore, for each in tooth or tooth group, movement can be quantified as three parts：It translates, enclose
Around the rotation of long axis of tooth or center line and in cheek side direction or from inboard to the inclination in lateral direction.
Moving projection is created for all teeth or tooth group now.The total step number of all teeth movement by tooth maximal translation
It is determined with the movement rotated and experience allows in one step, is usually 0.2mm.This also can be by user according to bone density
It is adjusted with patient age.Then system is by the linearly or non-linearly interior movement for pushing away each tooth.
There can be various strategies to plan the movement of tooth.As general rule, before moving projection, period or it
Afterwards, several things will be done：
1. this method will cut (IPR) using final tooth position to determine the need for execution proximal surface stripping or piece,
It is to reduce tooth width to generate the technology in some spaces of moving teeth.Between the final position of substantially two adjacent teeths
Impact momentum be regarded as being IPR values.Whether 2. need to check has collision between corona and root of the tooth.Crashworthness is if greater than plan
IPR will be considered as invalid.The plan will need to change.3. reappraise the metaplasia of each step.
Figure 16 is the displacement for showing to define the point on tissue regions compared with the distance between this point and tooth border
Function.
Figure 17 is the movement for showing the tooth in CT fault imagings.
After the movement of all teeth has been planned, this method is by synthetic time series model to represent each step of tooth movement
Suddenly.The model of each step will be corona and the combination of the movement of the soft tissue of deformation.If desired, user can be on model
Some additional geometric properties are created, commonly referred to as attachment, and the movement of tooth can be helped.Figure 18 is to show to be designed to help
In the attachment of moving teeth.
There are two types of methods to make final rectifier.
First method is to create a series of pedestal models and create rectifier using hot forming techniques, which is
The housing that can be matched with model.The series model will be used as digital file format to export, and then can be sent to 3D printing
Machine, fast forming machine, CNC or any other equipment that physical model can be made from digital document.
Each pedestal model can be placed on hot former, and plastic film can be heated and suck mould by hot former
Type, so as to generate Shell model.The inner surface of the Shell model not only represents the target location of the dental surface of corresponding steps, and
And possible metaplasia can be represented.Model can be trimmed to tooth border or including some tissue regions.As a result obtain
The rectifier of one processing step.
When the Shell model of step N+1 is applied in the pedestal model of step N, the inner surface of housing and pedestal it is outer
Shape difference between surface will generate power on model, therefore will be in the tooth of moved further reality.
Due between Shell model and pedestal model shape difference generate moving teeth power, pedestal model it is any into
The deformation of one step can cause the other shapes difference on Shell model, and therefore generate additional power in processes.
Therefore, the embodiment of this method is to provide software tool, to change base before hot forming is used to make rectifier
Seat model.For example, can be generated on model small dent local deformation operation will cause it is inwardly protruding in orthotics models,
This may cause additional power to promote tooth along the direction of protrusion.
In Figure 19 a, dotted line represents Shell model or rectifier, and solid line represents the tooth below rectifier.Surface it is inclined
The strength of moving teeth as shown by arrows can be generated by moving.Figure 19 b are to show original tooth model, the tooth with local deformation
Model, the rectifier that the distorted pattern makes is applied on actual tooth and therefore elevated regions generate additional force with
Moving teeth.
Second method is the Shell model for each step for being directly designed for pedestal model.This system provides for
The instrument in region is specified at family, and wherein Shell model will cover or simply use the set of crown surfaces.The region be extracted and
It thickeies to make rectifier.Final Shell model will match most of profile of dental surface and attachment, but may not reflect
All geometric details are so done and are also not necessarily to.
Figure 20 is to show that the geometry of rectifier is not the accurate matching of the combination of tooth.
It is identical with first method, be supplied to user software instrument, with make before housing generates pedestal model deform or
Person deforms Shell model after its creation.Shell model is further transmitted to manufacturing equipment to make final rectifier.
It will be apparent to one skilled in the art that without departing from the spirit or scope of the present invention, it can
To carry out various modifications in the present invention and modification.Therefore, if they within the scope of the appended claims and their equivalents,
It is contemplated that the modifications and variations of the covering present invention.
Claims (17)
1. it is a kind of for promoting the method that tooth repositions dental treatment, comprising：
The CT scan of patient oral cavity dental structure is received,
The optical scanner of patient oral cavity dental structure is received,
The registering CT scan and the optical scanner,
The initial model of patient oral cavity dental structure is established based on the CT scan and the optical scanner,
Tooth movement is simulated to generate the final mask of the patient oral cavity dental structure after desired treatment,
Generation represents the patient oral cavity dental structure of the continuous tooth movement from the initial model to the final mask
Multiple mid-modules, and
The multiple mid-module based on patient oral cavity dental structure prepares dental appliance,
The CT scan of wherein described patient oral cavity dental structure opens jaw angle, patient oral cavity dental structure in first
The optical scanner open jaw angle in second.
2. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, also include：
Split the tooth data of the CT scan to obtain the CT scan of segmentation,
The CT scan of wherein described segmentation includes corona data and root data.
3. it is according to claim 2 a kind of for promoting the method that tooth repositions dental treatment, also include：
Split the corona data of the optical scanner to obtain the optical scanner of segmentation,
The optical scanner of wherein described segmentation includes soft tissue data.
4. it is according to claim 3 a kind of for promoting the method that tooth repositions dental treatment, wherein, the foundation
The initial model of patient oral cavity dental structure is the optical scanner of CT scan and the segmentation based on the segmentation.
5. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, wherein, described first
It is 1 degree or bigger to open jaw angle and the described second difference opened between jaw angle.
6. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, also include：
Virtual joint is created based on the CT scan, the optical scanner or both,
Wherein described simulation tooth movement is the adjustment based on the virtual joint and the movement of individual tooth.
7. it is according to claim 6 a kind of for promoting the method that tooth repositions dental treatment, also include：
The axis of the remporomandibular joint of patient oral cavity dental structure is generated from the CT scan, the optical scanner or both
Line and
The axis is applied when creating the virtual joint.
8. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, also include：
Split the tooth data of the CT scan to obtain the CT scan of segmentation,
Split the corona data of the optical scanner with obtain the optical scanner of segmentation and
The optical scanner of CT scan and the segmentation based on the segmentation creates virtual joint,
The CT scan of wherein described segmentation includes corona data and root data,
The optical scanner of wherein described segmentation includes soft tissue data,
The wherein described initial model for establishing patient oral cavity dental structure is the CT scan based on the segmentation, described
Optical scanner of segmentation or both and
Wherein described simulation tooth movement is the adjustment based on the virtual joint and the movement of individual tooth.
9. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, wherein, the CT is swept
It retouches and is shown in both optical scanners in 3D rendering and 2D images, the 3D rendering and 2D images are included around the tooth
The area data of the jawbone of tooth, and assess the tooth repositioning tooth for the area data of the jawbone around the tooth
Section treats.
10. it is according to claim 1 a kind of for promoting the method that tooth repositions dental treatment, wherein, described
Tooth is repositioned in dental treatment, can be moved multiple teeth as single entity.
11. it is a kind of for promoting the method that tooth repositions dental treatment, comprising：
It receives and opens scanning of the jaw angle to patient oral cavity dental structure with first,
It receives and opens scanning of the jaw angle to patient oral cavity dental structure with second,
Registration described first opens the scanning of jaw angle and described second and opens the scanning of jaw angle,
The patient mouthful is established in the scanning and the described second scanning for opening jaw angle for opening jaw angle based on described first
The initial model of chamber dental structure,
Tooth movement is simulated to generate the final mask of the patient oral cavity dental structure after desired treatment,
Generation represents the patient oral cavity dental structure of the continuous tooth movement from the initial model to the final mask
Multiple mid-modules, and
The multiple mid-module based on patient oral cavity dental structure prepares dental appliance,
Wherein described first to open jaw angle and the described second difference opened between jaw angle be 1 degree or bigger.
12. it is according to claim 11 a kind of for promoting the method that tooth repositions dental treatment, also include：
Split described first open the tooth data of jaw angle scanning with obtain described first open jaw angle segmentation scanning and
Split described second and open the corona data of jaw angle scanning to obtain the described second segmentation scanning for opening jaw angle.
13. it is according to claim 12 a kind of for promoting the method that tooth repositions dental treatment, wherein, it is described to build
The initial model of vertical patient oral cavity dental structure be based on described first open jaw angle segmentation scanning, described second
Open segmentation scanning of jaw angle or both.
14. it is according to claim 11 a kind of for promoting the method that tooth repositions dental treatment, also include：
The scanning of jaw angle is opened based on described first, second described scanning of jaw angle or both is opened and creates virtual pass
Section,
Wherein described simulation tooth movement is the adjustment based on the virtual joint and the movement of individual tooth.
15. it is according to claim 14 a kind of for promoting the method that tooth repositions dental treatment, also include：
The scanning of jaw angle is opened from described first, described second opens in the scanning or both of jaw angle and generates the trouble
The axis of the remporomandibular joint of person oral cavity dental structure and
The axis is applied when creating the virtual joint.
16. it is according to claim 11 a kind of for promoting the method that tooth repositions dental treatment, wherein, the trouble
The scanning of person oral cavity dental structure is CT scan or optical scanner.
17. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It is realized during execution in claim 1-10 in any or claim 11-16 the step of any the method.
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