CN110334444A - A kind of construction method and system of natural tooth form database - Google Patents
A kind of construction method and system of natural tooth form database Download PDFInfo
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- G—PHYSICS
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- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G06T19/00—Manipulating 3D models or images for computer graphics
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Abstract
The invention discloses a kind of construction methods of natural tooth form database, comprising the following steps: 1. record object informations；2. obtaining mathematical model；3. dividing denture data；4. modifying tooth volume morphing；5. mirror image processing；6. tooth form anatomic marker area edits；7. denture data positional editing；8. natural tooth form database imports.The invention also discloses a kind of building systems of natural tooth form database.The present invention a kind of construction method and system of natural tooth form database, the building that natural tooth form database is completed by above-mentioned technology solves the problems such as current oral restoration Design of digital tooth form mismatches, form is single, shortage natural form texture and aesthetic beauty is poor；And the design such as the natural tooth form database of this method building can use in the design of any Digital repair, be preced with, bridge, veneer, inlay, removable partial denture and complete denture；The tooth form data to match can also be selected according to patient personal considerations and feature.
Description
Technical field
The present invention relates to technical field of biological information, and in particular to a kind of construction method of natural tooth form database and is
System.
Background technique
The production of mouth mending material is a vital step in oral restoration treatment, as digitizing technique is repaired in oral cavity
The production of the extensive utilization in multiple field, artificial tooth artificial tooth is gradually converted into Design of digital, numerical control cutting by wax pattern, upper porcelain, row's tooth
It cuts and 3D printing, doctor and technician is also from pervious tooth body dissection shape cognitive change for the cognition and use of Tooth morphology
Three-dimensional mathematical model.Especially crowns and bridges, veneer restorations, plantation repair and complete denture restoration in, CAD/CAM
Utilization it is very universal.It is intelligent, convenient and efficient that digitizing technique in the rapid development of oral cavity restoration field has benefited from its
Feature, artificial tooth whole design process include digital scanning model, and Design of digital dummy, last numerical control cutting or 3D are beaten
Print；Only need simple step that can complete the production of dummy, and most of process is completed by computer, relative to biography
For artificial tooth processing flow of uniting needs more than 30 procedure of processings, digitizing technique advantage is clearly.
During dummy digitized manufacturing system, the step of uniquely needing more artificial participation is Design of digital CAD
Link, it is necessary to completing corresponding design could be cut or printing shaping.Current Design of digital is not in software
Dummy is designed without foundation, but uses existing finished product tooth volume data or tooth body three-dimensional models, is poured into design interface, it is complete
At arrangement, the suitably processing carved, and then dummy is formed, is designed directly to own for dummy referring generally to tooth form data
Dental profession design software in have tooth form database (Tooth Library), provide use for designer.So tooth form number
According to library quality for dummy design it is particularly important, and quality, shape of entity dummy being finally completed etc. also directly by
To the influence of tooth form database.
But the built-in tooth form database majority tooth form of most dental profession design softwares is more suitable for white people, and quantity has
Limit, classify it is less.And the tooth form database in mainstay software is manual manufacture, lacks the peculiar texture of natural teeth.Institute
Lack individuality so that reparation volume morphing is single made by present most of artificial tooth processing factories, be difficult to meet each countries and regions,
The demand of each patient, doctor and technician.So how to guarantee original digitlization artificial tooth processing flow, do not increase dummy
It solves the above problems on the basis of design difficulty and design procedure, needs a kind of the natural of the suitable Chinese of completely new personalization
Tooth form database.
Summary of the invention
The technical problem to be solved by the present invention is to existing tooth form databases to lack universal applicability, and lack natural
The peculiar texture of tooth, it is difficult to meet the needs of various types of patients and doctor, and it is an object of the present invention to provide a kind of natural tooth form data
The construction method and system in library, solve the above problems.
The present invention is achieved through the following technical solutions:
A kind of construction method of natural tooth form database, comprising the following steps: S1: filter out study subject and record tested
The information of object；S2: being scanned all natural tooth of study subject upperdental arch and constructs three-dimensional mould according to scanning result
Type；S3: each natural teeth on threedimensional model is all individually split, and cutting procedure does not destroy dental hard tissue's shape
State；S4: modifying the natural teeth split, removes the soft tissue portion around tooth body, retains dental hard tissue, and right
Coarse tri patch and scanning defect carries out smooth treatment；S5: mirror image processing is carried out to trimmed ipsilateral tooth body, generates shape
The identical symmetrical tooth volume data of state size；S6: tooth form anatomy is carried out to symmetrical tooth volume data according to the type of tooth and position
It edits to form tooth volume data and pontic data in logo area；S7: by the tooth volume data of each tooth with it is right in the threedimensional model
It answers the position of tooth body to be matched, obtains the position arrangement data of each tooth；S8: by tooth volume data, pontic data and position
It sets arrangement data and is matched with the information of study subject and form natural tooth form database.
The present invention in application, sample firstly the need of database, the formation of database sample need to follow certain requirement,
So first filtering out study subject in the present invention and recording the information of study subject, for the generation in follow-up data library；Then it sweeps
The all natural tooth of study subject upperdental arch is retouched, and threedimensional model is constructed according to scanning result, building mode can be using existing
The various auxiliary softwares and tool having are completed；Then each natural teeth on threedimensional model is all individually split, three
It include soft tissue and dental hard tissue in dimension module, for the ease of proposing soft tissue, the present invention first carries out herein
Subsequent processing is convenient in segmentation；Then the tooth split is modified, finishing content includes removal soft tissue, and to sweeping
It the defects of retouches and models and handled.
Due to if artificial tooth itself is asymmetric, not only resulting in tooth unsightly when clinic carries out artificial tooth production,
Some unfavorable physiological reactions can be caused after planting tooth, in order to avoid such case generation, the invention uses mirror
As technology to ipsilateral tooth body carry out mirror image processing, ipsilateral tooth body mentioned here refer to be all left side tooth or be all right side
Tooth.
Then tooth form anatomic marker area is carried out to symmetrical tooth volume data according to the type of tooth and position to edit to form tooth
Volume data and pontic data；Due to anatomical features difference, the feature edit of front and back tooth is different, and described justice is for different type
Tooth to be different editors, and the position of tooth refers to corona and pontic, and the editor of the two is also different, by right
The subdivision at tooth type and position can make database more perfect.
It after the completion of the data of all teeth itself are all extracted, needs to position tooth, obtains the tool of each tooth
The complete information that a whole set of entire tooth specifically combines just is able to achieve after body three-dimensional coordinate.Finally by tooth volume data, pontic data
The information for being matched with study subject with position arrangement data forms natural tooth form database；It is said herein it is matched mean,
The information of study subject and the tooth volume data obtained from the study subject, pontic data and position arrangement data are made into one and reflected
It penetrates, it in actual use, can be by the spy to new user when the new user of appearance carries out planting the dental treatments such as tooth
Sign goes the information of study subject in comparison data library, then finds out most matched study subject, then will most matched study subject
Tooth volume data, pontic data and position arrangement data extract and are used as treatment parameter, it is seen that the database tool that the present invention generates
There is fabulous applicability.The present invention scans the healthy natural teeth body of different crowd and records its feature by digitizing technique, leads to
It crosses to gained tooth form three-dimensional modeling, Design of digital, three-dimensional tooth form analysis, virtual tooth form engraving, is calculated according to needed for design software
Method carries out specific dental anatomy editor, completes the building of natural tooth form database, this database can be according to conventional design process
It imports and uses in all types of repair capsules, be used directly for Design of digital, improve artificial tooth processing efficiency, mention
The aesthetic properties of dummy are risen, the natural tooth form database of designed completion has the characteristics of natural teeth, appearance profile and line
Reason.
Further, in step S1: the screening content includes: without any Dental treatment；Without periodontosis, dental caries；
Without developmental deformity；Natural teeth has applicable anatomic characteristic；The information of the study subject include record study subject name,
Age, sex, race, occupation, birthplace, somatotype, the classification of positive face type, the classification of side face type, Arch width classification, in
Incisor typoiogical classification, occlusion classification and abrasion classification.
The present invention in application, in order to guarantee database obtain data accuracy and applicability, need to study subject into
The specific screening content of row, and in order to generate after database convenient for matching in the present invention, also by the information of the study subject of record
It is defined.
Further, in step S6: it includes: coordinate, occlusal surface, incisxal edge, shape that tooth form anatomic marker area, which edits,
High dotted line, bead, ditch split, contact zone, cusp, cusp vertex, ridge, engagement region and pontic bottom.
The present invention carries out anatomy volume to each tooth volume data in application, using dental profession database edits software
Volume, including coordinate (Axes), occlusal surface (Chewing surface), incisxal edge (Incisal edge), height of contour line
(Equator), bead (Cervical border), ditch split (Fissure), contact zone (Approx contact), cusp
(Cusp1-5), cusp vertex (Cusp tips), ridge (Ridge), engagement region (Desired occlusion area), pontic
Bottom (Bottom) 12；Due to anatomical features difference, the feature edit of front and back tooth is different.
Further, step S6 includes following sub-step: the editor of incisxal edge is carried out to labial teeth；To premolar teeth and progress of grinding one's teeth in sleep
Occlusal surface, cusp, cusp vertex, ditch split the editor with engagement region；For pontic, the threedimensional model is closed and to pontic
It is edited bottom.
The present invention in application, due to repair mode difference, the editor of corona and pontic is also different, and pontic needs to seal
The notch of root side is closed, then to the bottom of pontic, i.e. lap ridge portion is edited.
Further, step S7 includes following sub-step: using net mate algorithm by the tooth volume data of each tooth
The position that tooth body is corresponded to the threedimensional model is matched.
The present invention carries out three-dimensional position to each tooth volume data in application, using dental profession database edits software
Each tooth volume data is corresponded to tooth body in original dental column data and is matched by the editor of arrangement by mesh fitting algorithm, from
And obtain the three dimensional local information of per a moment database tooth form.
A kind of building system of natural tooth form database, comprising: Database Unit: it is used to form, stores and calls and is natural
Tooth form database；Screening unit: for filtering out study subject and storing into Database Unit after recording the information of study subject；
Three-dimensional modeling unit: being scanned for all natural tooth to study subject upperdental arch and is constructed according to scanning result three-dimensional
Model；Cutting unit: for all individually splitting each natural teeth on threedimensional model, and cutting procedure does not destroy tooth
Body hard tissue morphology；Trimming unit: for modifying to the natural teeth split, the soft tissue around tooth body is removed
Point, retain dental hard tissue, and smooth treatment is carried out to coarse tri patch and scanning defect；Mirror image unit: for repairing
The ipsilateral tooth body haveing suffered carries out mirror image processing, generates the identical symmetrical tooth volume data of shape size；It compiles in tooth form anatomic marker area
It collects unit: tooth form anatomic marker area being carried out to symmetrical tooth volume data for the type and position according to tooth and edits to form tooth body
Data and pontic data；Denture data positional editing unit: for by the tooth volume data of each tooth and the threedimensional model
The position of middle corresponding tooth body is matched, and obtains the position arrangement data of each tooth；The Database Unit is by tooth body number
Natural tooth form database is formed according to the information that, pontic data and position arrangement data are matched with study subject.
Further, in the screening unit: the screening content includes: without any Dental treatment；Without periodontosis,
Dental caries；Without developmental deformity；Natural teeth has applicable anatomic characteristic；The information of the study subject includes record study subject
Name, age, sex, race, occupation, birthplace, somatotype, positive face type classification, the classification of side face type, Arch width point
Class, central incisor typoiogical classification, occlusion classification and abrasion classification.
Further, in tooth form anatomic marker area edit cell: tooth form anatomic marker area, which edits, includes:
Coordinate, occlusal surface, incisxal edge, height of contour line, bead, ditch split, contact zone, cusp, cusp vertex, ridge, engagement region and pontic
Bottom.
Further, tooth form anatomic marker area edit cell is used for: the editor of incisxal edge is carried out to labial teeth；To premolar teeth and
It grinds one's teeth in sleep and carries out occlusal surface, cusp, cusp vertex, ditch split editor with engagement region；For pontic, the threedimensional model is closed
And pontic bottom is edited.
Further, the denture data positional editing unit uses net mate algorithm by the tooth body number of each tooth
It is matched according to the position for corresponding to tooth body in the threedimensional model.
Compared with prior art, the present invention having the following advantages and benefits:
1, the present invention a kind of construction method and system of natural tooth form database scans different people by digitizing technique
The healthy natural teeth body of group simultaneously records its feature, analyzed as tooth form three-dimensional modeling, Design of digital to obtained by, three-dimensional tooth form,
Virtual tooth form engraving, the algorithm according to needed for design software carry out specific dental anatomy editor, complete natural tooth form database
Building, this database can be imported and be used in all types of repair capsules according to conventional design process, be used directly for
Design of digital improves artificial tooth processing efficiency, improves the aesthetic properties of dummy, the natural tooth form data of designed completion
Library has the characteristics of natural teeth, appearance profile and texture；
2, the present invention a kind of construction method and system of natural tooth form database, the use of natural tooth form database, design
It is just the same etc. all steps and method and traditional digital design, it is easy to operate, it designs convenient and efficient；
3, the present invention a kind of construction method and system of natural tooth form database, the selection of natural tooth form database is according to disease
Example and the case where patient, matches with the information of study subject, selects the natural tooth form of personalization for being most suitable for the case；
4, the present invention a kind of construction method and system of natural tooth form database, natural tooth form database compatibility is strong, energy
In all modules in design software complete dummy design, including hat, bridge, veneer, inlay, removable partial denture and
Complete denture；
5, the present invention a kind of construction method and system of natural tooth form database, solves Digital repair body and lacks individuality
The problem of changing element provides more for dummy design, is more suitable for Asian tooth form selection.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is step schematic diagram of the present invention；
Fig. 2 is the threedimensional model schematic diagram that present invention scanning obtains；
Fig. 3 is present invention segmentation denture schematic diagram；
Fig. 4 is present invention finishing tooth volume morphing schematic diagram；
Fig. 5 is mirror image processing schematic diagram of the present invention；
Fig. 6 is that tooth form anatomic marker of the present invention area edits schematic diagram；
Fig. 7 is denture data positional editing schematic diagram of the present invention；
Fig. 8 is the natural tooth form database of the present invention in the fixed application schematic diagram for repairing Design of digital；
Fig. 9 is application schematic diagram of the natural tooth form database of the present invention in movable prosthodontics Design of digital；
Figure 10 is forming data library Tooth side view of the present invention；
Figure 11 is forming data library Tooth top view of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment
As shown in Figure 1, the present invention a kind of construction method and system of natural tooth form database, comprising the following steps: S1: sieve
It selects study subject and records the information of study subject；S2: all natural tooth of study subject upperdental arch is scanned simultaneously
Threedimensional model is constructed according to scanning result；S3: each natural teeth on threedimensional model is all individually split, and was divided
Journey does not destroy dental hard tissue's form；S4: modifying the natural teeth split, removes the soft tissue around tooth body
Point, retain dental hard tissue, and smooth treatment is carried out to coarse tri patch and scanning defect；S5: to trimmed ipsilateral
Tooth body carries out mirror image processing, generates the identical symmetrical tooth volume data of shape size；S6: according to the type of tooth and position to symmetrical
Tooth volume data carries out tooth form anatomic marker area and edits to form tooth volume data and pontic data；S7: by the tooth body of each tooth
The position that tooth body is corresponded in data and the threedimensional model is matched, and obtains the position arrangement data of each tooth；S8: will
The information that tooth volume data, pontic data and position arrangement data are matched with study subject forms natural tooth form database.
When the present embodiment is implemented, it is necessary first to which the formation of the sample of database, database sample needs to follow certain want
It asks, so first filtering out study subject in the present invention and recording the information of study subject, for the generation in follow-up data library；Then
The all natural tooth of study subject upperdental arch is scanned, and threedimensional model is constructed according to scanning result, building mode can use
Existing various auxiliary softwares and tool are completed；Then each natural teeth on threedimensional model is all individually split,
Include soft tissue and dental hard tissue in threedimensional model, for the ease of soft tissue is proposed, the present invention first herein into
Subsequent processing is convenient in row segmentation；Then the tooth split is modified, finishing content includes removal soft tissue, and right
The defects of scanning and modeling are handled.
Due to if artificial tooth itself is asymmetric, not only resulting in tooth unsightly when clinic carries out artificial tooth production,
Some unfavorable physiological reactions can be caused after planting tooth, in order to avoid such case generation, the invention uses mirror
As technology to ipsilateral tooth body carry out mirror image processing, ipsilateral tooth body mentioned here refer to be all left side tooth or be all right side
Tooth.
Then tooth form anatomic marker area is carried out to symmetrical tooth volume data according to the type of tooth and position to edit to form tooth
Volume data and pontic data；Due to anatomical features difference, the feature edit of front and back tooth is different, and described justice is for different type
Tooth to be different editors, and the position of tooth refers to corona and pontic, and the editor of the two is also different, by right
The subdivision at tooth type and position can make database more perfect.
It after the completion of the data of all teeth itself are all extracted, needs to position tooth, obtains the tool of each tooth
The complete information that a whole set of entire tooth specifically combines just is able to achieve after body three-dimensional coordinate.Finally by tooth volume data, pontic data
The information for being matched with study subject with position arrangement data forms natural tooth form database；It is said herein it is matched mean,
The information of study subject and the tooth volume data obtained from the study subject, pontic data and position arrangement data are made into one and reflected
It penetrates, it in actual use, can be by the spy to new user when the new user of appearance carries out planting the dental treatments such as tooth
Sign goes the information of study subject in comparison data library, then finds out most matched study subject, then will most matched study subject
Tooth volume data, pontic data and position arrangement data extract and are used as treatment parameter, it is seen that the database tool that the present invention generates
There is fabulous applicability.The present invention scans the healthy natural teeth body of different crowd and records its feature by digitizing technique, leads to
It crosses to gained tooth form three-dimensional modeling, Design of digital, three-dimensional tooth form analysis, virtual tooth form engraving, is calculated according to needed for design software
Method carries out specific dental anatomy editor, completes the building of natural tooth form database, this database can be according to conventional design process
It imports and uses in all types of repair capsules, be used directly for Design of digital, improve artificial tooth processing efficiency, mention
The aesthetic properties of dummy are risen, the natural tooth form database of designed completion has the characteristics of natural teeth, appearance profile and line
Reason.
For the course of work of further instruction the present embodiment, in step S1: the screening content include: without appoint
What Dental treatment；Without periodontosis, dental caries；Without developmental deformity；Natural teeth has applicable anatomic characteristic；The study subject
Information includes record study subject name, age, sex, race, occupation, birthplace, somatotype, positive face type classification, side
The classification of face face type, Arch width classification, central incisor typoiogical classification, occlusion classification and abrasion classification.
When the present embodiment is implemented, in order to guarantee that database obtains the accuracy and applicability of data, need to study subject
Specific screening content is carried out, and in order to generate after database convenient for matching in the present invention, also by the letter of the study subject of record
Breath is defined.
For the course of work of further instruction the present embodiment, in step S6: tooth form anatomic marker area edits
Include: coordinate, occlusal surface, incisxal edge, height of contour line, bead, ditch split, contact zone, cusp, cusp vertex, ridge, engagement region and
Pontic bottom.
When the present embodiment is implemented, using dental profession database edits software, anatomy is carried out to each tooth volume data
Editor, including coordinate (Axes), occlusal surface (Chewing surface), incisxal edge (Incisal edge), height of contour line
(Equator), bead (Cervical border), ditch split (Fissure), contact zone (Approx contact), cusp
(Cusp1-5), cusp vertex (Cusp tips), ridge (Ridge), engagement region (Desired occlusion area), pontic
Bottom (Bottom) 12；Due to anatomical features difference, the feature edit of front and back tooth is different.
For the course of work of further instruction the present embodiment, step S6 includes following sub-step: being cut to labial teeth
The editor of edge；Carry out that occlusal surface, cusp, cusp vertex, ditch is split and the editor of engagement region to premolar teeth and grinding one's teeth in sleep；For bridge
The threedimensional model is closed and is edited to pontic bottom by body.
When the present embodiment is implemented, due to the difference of repair mode, the editor of corona and pontic is also different, and pontic needs
The notch of root side is closed, then to the bottom of pontic, i.e. lap ridge portion is edited.
For the course of work of further instruction the present embodiment, step S7 includes following sub-step: using net mate
Algorithm matches the position that tooth body is corresponded in the tooth volume data of each tooth and the threedimensional model.
When the present embodiment is implemented, using dental profession database edits software, three-dimensional position is carried out to each tooth volume data
Each tooth volume data is corresponded to tooth body in original dental column data and is matched by the editor for setting arrangement by mesh fitting algorithm,
To obtain the three dimensional local information of per a moment database tooth form.
A kind of building system of natural tooth form database, comprising: Database Unit: it is used to form, stores and calls and is natural
Tooth form database；Screening unit: for filtering out study subject and storing into Database Unit after recording the information of study subject；
Three-dimensional modeling unit: being scanned for all natural tooth to study subject upperdental arch and is constructed according to scanning result three-dimensional
Model；Cutting unit: for all individually splitting each natural teeth on threedimensional model, and cutting procedure does not destroy tooth
Body hard tissue morphology；Trimming unit: for modifying to the natural teeth split, the soft tissue around tooth body is removed
Point, retain dental hard tissue, and smooth treatment is carried out to coarse tri patch and scanning defect；Mirror image unit: for repairing
The ipsilateral tooth body haveing suffered carries out mirror image processing, generates the identical symmetrical tooth volume data of shape size；It compiles in tooth form anatomic marker area
It collects unit: tooth form anatomic marker area being carried out to symmetrical tooth volume data for the type and position according to tooth and edits to form tooth body
Data and pontic data；Denture data positional editing unit: for by the tooth volume data of each tooth and the threedimensional model
The position of middle corresponding tooth body is matched, and obtains the position arrangement data of each tooth；The Database Unit is by tooth body number
Natural tooth form database is formed according to the information that, pontic data and position arrangement data are matched with study subject.
For the course of work of further instruction the present embodiment, in the screening unit: the screening content includes: not
By any Dental treatment；Without periodontosis, dental caries；Without developmental deformity；Natural teeth has applicable anatomic characteristic；It is described tested
The information of object includes record study subject name, age, sex, race, occupation, birthplace, somatotype, positive face type point
Class, the classification of side face type, Arch width classification, central incisor typoiogical classification, occlusion classification and abrasion classification.
For the course of work of further instruction the present embodiment, in tooth form anatomic marker area edit cell: institute
State tooth form anatomic marker area and edit include: coordinate, occlusal surface, incisxal edge, height of contour line, bead, ditch split, contact zone, cusp,
Cusp vertex, ridge, engagement region and pontic bottom.
For the course of work of further instruction the present embodiment, tooth form anatomic marker area edit cell is used for: to preceding
The editor of tooth progress incisxal edge；Carry out that occlusal surface, cusp, cusp vertex, ditch is split and the editor of engagement region to premolar teeth and grinding one's teeth in sleep；
For pontic, the threedimensional model is closed and pontic bottom is edited.
For the course of work of further instruction the present embodiment, the denture data positional editing unit uses network
The position that tooth body is corresponded in the tooth volume data of each tooth and the threedimensional model is matched with algorithm.
For the course of work of specific description the present embodiment, construction method the following steps are included:
(1) record object information: filtering out without any Dental treatment, no periodontosis, dental caries, no developmental deformity and
Natural teeth has the study subject of preferable anatomic characteristic, records its name, age, sex, race, occupation, birthplace, figure
Classification, positive face type classification, the classification of side face type, Arch width classification, central incisor typoiogical classification, occlusion classification and abrasion point
Grade.
(2) it obtains mathematical model: using scanner scanning upperdental arch all natural tooth in 3shape mouthfuls, then being led
It is out general three-dimensional formatted file.It is illustrated in figure 2 and obtains digital model schematic diagram.
(3) divide denture data: using Three-dimensional Design Software under the premise of not destroying any dental hard tissue's form
Each natural teeth in denture is split by the cutting tool of Materialise Magics, and cutting gap is set as 0, often
One tooth saves respectively.It is illustrated in figure 3 segmentation denture schematic diagram.
(4) it modifies tooth volume morphing: using Three-dimensional Design Software under the premise of not destroying any dental hard tissue's form
The engraving tool of exocad DentalCAD removes the soft tissue portion around tooth body, retains sclerous tissues, and to some coarse
Tri patch and scanning defect carry out smooth treatment.It is illustrated in figure 4 finishing tooth volume morphing schematic diagram.
(5) mirror image processing: using the mirror image tool in Three-dimensional Design Software Materialise Magics, to ipsilateral tooth body
Mirror image processing is carried out, the identical symmetrical tooth volume data of form size is obtained.It is illustrated in figure 5 mirror image processing schematic diagram.
(6) tooth form anatomic marker area edits: dental profession database edits software ToothModelEditor is used, it is right
Each tooth volume data carries out anatomy editor, including coordinate (Axes), occlusal surface (Chewing surface), incisxal edge
(Incisal edge), height of contour line (Equator), bead (Cervical border), ditch split (Fissure), contact zone
(Approx contact), cusp (Cusp1-5), cusp vertex (Cusp tips), ridge (Ridge), engagement region (Desired
Occlusion area), pontic bottom (Bottom) 12；Due to anatomical features difference, the feature edit of front and back tooth is not
Together, wherein incisxal edge only has labial teeth just to edit, and occlusal surface, cusp, cusp vertex, ditch is split, engagement region only has premolar teeth and mill
Tooth is just edited；Due to the difference of repair mode, the editor of corona and pontic is also different, and pontic needs to close lacking for root side
Mouthful, then to the bottom of pontic, i.e. lap ridge portion is edited.It is illustrated in figure 6 tooth form anatomic marker area and edits schematic diagram.
(7) denture data positional editing: dental profession database edits software exocad DentalCAD is used, to each
Tooth volume data carries out the editor of three-dimensional position arrangement, by mesh fitting algorithm, by each tooth volume data in original denture
Data correspond to tooth body and are matched, to obtain the three dimensional local information of per a moment database tooth form.It is illustrated in figure 7 denture number
According to positional editing schematic diagram.
(8) natural tooth form database imports: after the completion of all editors, we can obtain three kinds of data, respectively tooth body
Data, pontic data and position arrange data, each file of these three data are put in three files, file is to examine
The name of rope information, then tooth volume data is stored in " library-teeth " file, and pontic data are stored in " library-
In pontics " file, position arrangement data are stored in " library-metadata " file；In tooth form data when design
Library selection interface selects the name of named file and loading, so that it may be loaded into tooth form data.
Corresponding natural tooth form database, the natural tooth form database can be obtained by the technical solution that embodiment provides
Interior all tooth form three-dimensional modeling datas can use in all design dental case modules of the software.
As shown in Figure 10 and Figure 11, the tooth data of natural tooth form database are shown in figure, can clearly see from figure, this
In embodiment, the natural tooth form database of designed completion has the characteristics of natural teeth, appearance profile and texture.
In order to illustrate the effect that the database that the present embodiment generates uses, database is by aforementioned any embodiment method system
What work obtained, which specifically includes the following contents:
(1) in the fixed application for repairing Design of digital: after completing die edge line and being bonded the design in gap
It is loaded into natural teeth database, then according to conventional design step, tooth is arranged, calculates edge, adjustment contact and occlusion, last essence
Correction of the flank shape is at final dummy.Natural tooth form database is illustrated in figure 8 in the fixed application for repairing Design of digital.
(2) in the application of movable prosthodontics Design of digital: be directly loaded into natural tooth form database, then carry out row's tooth,
Occlusal adjustment, draws base range at adjacent area adjustment, can complete final dummy.It is illustrated in figure 9 natural tooth form database
In the application of movable prosthodontics Design of digital.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of construction method of natural tooth form database, which comprises the following steps:
S1: filtering out study subject and records the information of study subject；
S2: being scanned all natural tooth of study subject upperdental arch and constructs threedimensional model according to scanning result；
S3: each natural teeth on threedimensional model is all individually split, and cutting procedure does not destroy dental hard tissue's shape
State；
S4: modifying the natural teeth split, removes the soft tissue portion around tooth body, retains dental hard tissue, and
Smooth treatment is carried out to coarse tri patch and scanning defect；
S5: mirror image processing is carried out to trimmed ipsilateral tooth body, generates the identical symmetrical tooth volume data of shape size；
S6: tooth form anatomic marker area is carried out to symmetrical tooth volume data according to the type of tooth and position and edits to form tooth volume data
With pontic data；
S7: the position for corresponding to tooth body in the tooth volume data of each tooth and the threedimensional model is matched, is obtained each
The position of tooth arranges data；
S8: the information that tooth volume data, pontic data and position arrangement data are matched with study subject is formed into natural tooth form number
According to library.
2. a kind of construction method of natural tooth form database according to claim 1, which is characterized in that in step S1:
The screening content includes: without any Dental treatment；Without periodontosis, dental caries；Without developmental deformity；Natural teeth has suitable
Anatomic characteristic；
The information of the study subject includes record study subject name, age, sex, race, occupation, birthplace, figure point
Class, positive face type classification, the classification of side face type, Arch width classification, central incisor typoiogical classification, occlusion classification and abrasion classification.
3. a kind of construction method of natural tooth form database according to claim 1, which is characterized in that in step S6:
It includes: that coordinate, occlusal surface, incisxal edge, height of contour line, bead, ditch split, contact that tooth form anatomic marker area, which edits,
Area, cusp, cusp vertex, ridge, engagement region and pontic bottom.
4. a kind of construction method of natural tooth form database according to claim 3, which is characterized in that step S6 include with
Lower sub-step:
The editor of incisxal edge is carried out to labial teeth；
Carry out that occlusal surface, cusp, cusp vertex, ditch is split and the editor of engagement region to premolar teeth and grinding one's teeth in sleep；
For pontic, the threedimensional model is closed and pontic bottom is edited.
5. a kind of construction method of natural tooth form database according to claim 1, which is characterized in that step S7 include with
Lower sub-step:
The position that tooth body is corresponded in the tooth volume data of each tooth and the threedimensional model is carried out using net mate algorithm
Matching.
6. a kind of building system of natural tooth form database characterized by comprising
Database Unit: it is used to form, stores and calls natural tooth form database；
Screening unit: for filtering out study subject and storing into Database Unit after recording the information of study subject；
Three-dimensional modeling unit: it is scanned for all natural tooth to study subject upperdental arch and is constructed according to scanning result
Threedimensional model；
Cutting unit: for all individually splitting each natural teeth on threedimensional model, and cutting procedure does not destroy tooth
Body hard tissue morphology；
Trimming unit: for being modified to the natural teeth split, the soft tissue portion around tooth body is removed, tooth body is retained
Sclerous tissues, and smooth treatment is carried out to coarse tri patch and scanning defect；
Mirror image unit: for carrying out mirror image processing to trimmed ipsilateral tooth body, the identical symmetrical tooth body number of shape size is generated
According to；
Tooth form anatomic marker area edit cell: for carrying out tooth form solution to symmetrical tooth volume data according to the type and position of tooth
Logo area is cutd open to edit to form tooth volume data and pontic data；
Denture data positional editing unit: for tooth body will to be corresponded in the tooth volume data of each tooth and the threedimensional model
Position is matched, and obtains the position arrangement data of each tooth；
The Database Unit forms the information that tooth volume data, pontic data and position arrangement data are matched with study subject
Natural tooth form database.
7. a kind of building system of natural tooth form database according to claim 6, which is characterized in that the screening unit
In:
The screening content includes: without any Dental treatment；Without periodontosis, dental caries；Without developmental deformity；Natural teeth has suitable
Anatomic characteristic；
The information of the study subject includes record study subject name, age, sex, race, occupation, birthplace, figure point
Class, positive face type classification, the classification of side face type, Arch width classification, central incisor typoiogical classification, occlusion classification and abrasion classification.
8. a kind of building system of natural tooth form database according to claim 6, which is characterized in that the tooth form dissection
It learns in the edit cell of logo area:
It includes: that coordinate, occlusal surface, incisxal edge, height of contour line, bead, ditch split, contact that tooth form anatomic marker area, which edits,
Area, cusp, cusp vertex, ridge, engagement region and pontic bottom.
9. a kind of building system of natural tooth form database according to claim 8, which is characterized in that tooth form anatomy mark
Will area edit cell is used for:
The editor of incisxal edge is carried out to labial teeth；
Carry out that occlusal surface, cusp, cusp vertex, ditch is split and the editor of engagement region to premolar teeth and grinding one's teeth in sleep；
For pontic, the threedimensional model is closed and pontic bottom is edited.
10. a kind of building system of natural tooth form database according to claim 6, which is characterized in that the denture number
Tooth body will be corresponded in the tooth volume data of each tooth and the threedimensional model using net mate algorithm according to positional editing unit
Position matched.
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| WO2021004346A1 (en) * | 2019-07-05 | 2021-01-14 | 四川大学 | Method and system for constructing natural tooth library |
| CN113995539A (en) * | 2021-10-25 | 2022-02-01 | 北京大学口腔医院 | Method and system for constructing breast crown physiological database |
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