CN104715099B - Virtual articulator design method for tooth crown bridge working bite relation face - Google Patents
Virtual articulator design method for tooth crown bridge working bite relation face Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000013461 design Methods 0.000 title claims abstract description 27
- 210000000332 tooth crown Anatomy 0.000 title claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 206010061274 Malocclusion Diseases 0.000 claims abstract description 28
- 208000034718 Tooth crowding Diseases 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 210000004513 dentition Anatomy 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 12
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- 238000004458 analytical method Methods 0.000 claims description 4
- 210000003484 anatomy Anatomy 0.000 claims description 3
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- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 208000035126 Facies Diseases 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 6
- 238000011002 quantification Methods 0.000 abstract description 3
- 210000000214 mouth Anatomy 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
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- 238000011960 computer-aided design Methods 0.000 description 3
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Abstract
The present invention relates to a kind of virtual articulator design method for tooth crown bridge working bite relation face, comprise the following steps：1）With the three-dimensional track information of lower jaw characteristic kinematic during tooth crowding analyzer recording individual masticatory movement；2）Tooth crowding analyzer work coordinate system is merged with denture 3-D scanning co-registration of coordinate systems used；3）Create static intercuspal occlusion tooth crown bridge prosthesis CAD data；4）Virtual occlusion automatic detection and the automatic foundation for adjusting tooth to close platform；5）Virtual occlusion automatic detection；6）Automatic virtual tune tooth closes, and creates the tooth crown bridge CAD data with working bite relation face.By simulation, everyone personalized masticatory properties move the present invention, realize the virtual occlusion automatic detection of accurate quantification and virtually adjust tooth to close automatically, avoid patient from being ground repeatedly when trying dummy on, so as to substantially increase the precision and efficiency of dummy making.
Description
Technical field
The present invention relates to a kind of tooth crown bridge prosthesis CAD, and in particular to one kind is used for tooth crown bridge working bite relation face
Virtual articulator design method.
Background technology
It is that a kind of clinical conventional dummy designs and produces servicing unit that tooth, which closes frame,.It can simulate the lower jaw fortune of the mankind
Dynamic, the dummy that the making of frame Computer Aided Design is closed with tooth is easier the individual demand for meeting patient.
Oral restoration CAD/CAM（Computer Aided Design/Computer Aided manufacturing, meter
Calculation machine Computer Aided Design makes with area of computer aided）Technology is a kind of very high dummy design process technology of automaticity, should
Class system is also integrated with substantial amounts of doctor in addition to high-precision, the efficient feature with industrial automation in CAD software
The knowledge and clinical experience of expert is learned, the production quality of dummy can be significantly improved in a short time, clinical practice is increasingly extensive.
Oral restoration CAD/CAM system common at present, when bridge occlusal surface form is preced with design, it is only capable of applying static cusp
Interleaved bits denture relation data, can not still dynamic functional be applied to be engaged, i.e. extension, lateral occlusion data.Cause to design and produce
Dissection complete crown out, fixed bridge still need to adjust and reform noise spot after wearing, and add doctor's clinical position amount, extend patient's
Consultation time.
The computer virtual program of frame operation principle exploitation, referred to as virtual articulator are closed according to mechanical tooth.It is engaged in Guan Qiao
During the CAD virtual designs of face, if being aided with virtual full adjustable articulator program, center, extension and side can be removed in the CAD stages and is stung
Early contact point and noise spot in resultant motion, reduce clinic and grind difficulty.Both at home and abroad on virtual articulator in oral restoration
The correlative study applied in CAD/CAM technologies can be divided into three phases.
First stage in the virtual simple articulator stage
With first set commercialization oral restoration CAD/CAM system Cerec1 in the world in 1986（Sirona companies, Germany）
For the early stage oral restoration CAD/CAM system of representative, by scanning and carrying out dummy occlusal surface form using articulation registration
Design.Only simulate human simple opening and closing mouth motion.Recorded without standard measure and using the occlusal contact condition under lower jaw functional movement state
Relation, it is functionally similar to simple and mechanical tooth and closes frame.Using such system design make mouth mending material, clinically position suffer from
When person tries on, generally require repeatedly to grind repeatedly, add patient's physiology, psychological burden and clinical position amount.
Second stage working bite relation records the stage（Virtual enhanced simple articulator）
There are scholar in foreign countries in Cicero systems（Elephant companies, Holland）And Cerec3D（Sirona companies, Germany）System
In system, domestic Lv Pei armies, Wang Yong, Zou Bo, Liu Mingli etc. fix in the oral cavity that Peking University School of Stomatology is voluntarily developed and repaired
Working bite relation is recorded in CAD/CAM system（Functional Generated Path,FGP）Technology and leaf-comb cad technique
With reference to being single tooth Full Crown design functionality occlusal surface form.Closed to jaw tooth anatomic form and the occlusion of upper lower jaw
When being normal, FGP can meet leaf-comb CAD requirement.And when to jaw tooth paramophia, have defect, occluding relation bad or
Need to carry out polydonita position or even full occlusion of dentition is rebuild when repairing, FGP can not provide enough design information and accuracy.
Phase III individual masticatory movement virtual phase
Korda β in 2002 etc. obtain tooth crowding with Mandibular kinesiograph, tentatively establish virtual teeth conjunction
Frame system.Closed with the system simulation mandibular movement, detection natural dentistry and oral cavity fixed restoration CAD mathematical models occlusal contact condition
System；2003, Faust pairsCAD/CAM system（Girrbach Dental companies, Germany）In virtual teeth close
Frame program is set forth, and inputs individual patients tooth crowding in this procedure, can simulate the Individual Mandibular fortune of patient
It is dynamic, and remove oral cavity fixed restoration CAD mathematical models Occlusal interference point with subtraction mechanism.
The country, Li Hong ripples in 2004 etc. obtain upper and lower jawbone three-dimensional data with three dimensional CT, and tooth is obtained with spatial digitizer
Column data, by two parts Registration of Measuring Data, denture, the three-dimensional digital model of remporomandibular joint are established, is retouched with tooth crowding
After remembering that instrument obtains tooth crowding, realize and upper and lower denture relative position relation, contact point and temporomandibular joint in mandibular movement are closed
The observation of section；The grand grades of Lu Er in 2005 obtain half adjustable mechanical tooth with three-dimensional coordinate measuring instrument and close frame protrusive movement track characteristic
Point, establish arbitrfary point protrusive movement track, rear exploitation again on artificial maxillary occlusion of dentition face when tooth closes frame simulation mandibular movement
The algoritic module of simulation mandibular dentition protrusive movement.
So far, home and abroad there is no closes frame available for the virtual complete adjustable tooth of oral restoration CAD/CAM technologies.
The content of the invention
It is an object of the invention to provide a kind of virtual articulator design method for tooth crown bridge working bite relation face, leads to
Cross and simulate everyone personalized masticatory properties motion, realize the virtual occlusion automatic detection of accurate quantification and automatic virtual tune tooth
Close, avoid patient from being ground repeatedly when trying dummy on, so as to substantially increase the precision and efficiency of dummy making.
In order to achieve the above object, the present invention has following technical scheme：
A kind of virtual articulator design method for tooth crown bridge working bite relation face of the present invention, including following step
Suddenly：
1）With the three-dimensional track information of lower jaw characteristic kinematic during tooth crowding analyzer recording individual masticatory movement；
2）Tooth crowding analyzer work coordinate system is merged with denture 3-D scanning co-registration of coordinate systems used；
3）Create static intercuspal occlusion tooth crown bridge prosthesis CAD data；
4）Virtual occlusion automatic detection and the automatic foundation for adjusting tooth to close platform；
5）Virtual occlusion automatic detection；
6）Automatic virtual tune tooth closes, and creates the tooth crown bridge CAD data with working bite relation face.
Wherein, the step 1）Before the Arch bar splint that middle tooth crowding analyzer is equipped with sensor is fixed on lower jaw
Tooth area, signal receiver are fixed on subject's head, and during mandibular movement, sensor keeps relatively quiet with mandibular dentition
Only, by computer signal Analysis, three-dimensional tooth crowding is created.The individual masticatory movement includes：Be opened and closed mouth motion, under
The hybrid motion of protraction motion, lower jaw lateral movement and three of the above motion.
Wherein, the step 2）Refer to the setting mark plane on Arch bar splint, it is desirable to have between the mark plane and denture
Known quantity space relation, and the quantitative description of spatial pose can be carried out with work coordinate system, using this mark plane in
It is situated between, realizes the accuracy registration of tooth crowding analyzer work coordinate system and denture 3-D scanning coordinate system and merge.
Wherein, the step 3）It is to carry out preparing volume data extraction and curved surface successively on Imageware11 software platforms
Reverse, ideal dental crowns data are read in, ideal dental crowns positioning, the personalized modification of axial plane, static anatomy occlusal surface, are completed Guan Qiao and are repaiied
The Preliminary design of complex.
Wherein, the step 4）It is using VC++2008 as development platform, based on the void developed under OpenGL figure shows storehouse
Intend occlusion automatic detection and close platform with automatic tune tooth, the virtual automatic detection that is engaged is examined with adjusting tooth to close platform automatically including interference and collision
Survey module and adjust tooth matched moulds block, the two modules hat that alternating action is completed in CAD design in the platform automatically with interference region
Bridge, so as to which the dynamic for reaching final is engaged " balance " state.
Interference and collision detection module：Mutual motion between lower jaw and the upper jaw is driven by tooth crowding.Colliding
In detection process, space motion path is sampled by the equal rule of neighbor point displacement, as shown in figure 3, in lower jaw
With in upper jaw relative movement, when mandibular movement is to sampling point position, using interference and collision detection technique to Guan Qiao with
Interference and collision detection is carried out to jaw tooth, if there is interference, interference is removed by adjusting tooth to close；Do not interfere, then continue relative motion.
Interference region adjusts tooth matched moulds block automatically：After interference region has been identified using interference and collision detection technique, " kind is utilized
Son " search technique identifies whole interference region（Shown in Fig. 4）." seed " search technique is specially：Interference and collision detects skill
Behind the border of art identification interference region（Fig. 4（a）It is shown）, find " seed " tri patch in interference region（Fig. 4（b）
It is shown）, tri patch around iterative search " seed " tri patch, to interfere border as search border, until search three
Untill edged surface piece is not further added by, Fig. 4（c）For the pilot process of search, Fig. 4（d）For the whole interference region obtained after the completion of search
Domain, after the completion of identification, in interference region, interference region is removed using local deformation technology.
Adjust the alternating action of tooth conjunction automatically with interference region by multiple impacts interference detection, be finally completed Guan Qiao tune tooth
Close.
Wherein, the step 5）In, co-registration of coordinate systems used algorithm is primarily based on, realizes mandibular dentition relative to maxillary dentition
Three-dimensional functional exercise, it is main to include the motion of opening and closing mouth, mandibular protraction, lower jaw lateral movement and three of the above motion
Hybrid motion；After the registration of relative coordinate system is completed, the mandibular movement rail obtained by tooth crowding analyzer is utilized
Virtual occlusion automatic detection and the automatic compound motion of adjusting tooth close platform on simulation lower jaw of the mark in exploitation, in mandibular movement process
In, using interference and collision detection module, detect in real time and feed back CAD complete crowns digital model and the interference situation to jaw tooth, if
Determine detection threshold value, i.e., the thickness of virtual occluding paper, when mandibular movement is to a certain terminating point automatic detection dummy with to jaw tooth
Between data interference, the numerical value of output be on the occasion of when represent there occurs data interference, represent the early contact zone of occlusion or interference range;
When output numerical value is zero represent dummy with it is contactless to jaw tooth；Represent that dummy is engaged with to jaw tooth when output data is negative value
Gap between face be present；Dummy occlusal surface is shown with multizone color gradient and to the spatial relation between jaw denture,
Interference and collision detection technique calculates dummy and is engaged early contact point, the position of noise spot, distribution and interference region volume automatically.
Wherein, the step 6）It is virtually to be engaged automatic detection with adjusting tooth to close on platform automatically, using interference region certainly
It is dynamic to adjust tooth matched moulds block, utilize the identification of " seed " search technique simultaneously brightness enhancing display " early contact zone " or position, the scope of " interference range "
And depth, after operator confirms the tooth of needs " grinding ", whether interference region adjusts tooth matched moulds block automatic decision interference values automatically
Such as it is on the occasion of then virtual tune occlusal system calls joining cloud edit tool to carry out virtual tune tooth conjunction, final to create for " on the occasion of "
Tooth crown bridge CAD data with working bite relation face.
The advantage of the invention is that：
By simulation everyone personalized masticatory properties move, realize accurate quantification virtual occlusion automatic detection and from
Dynamic virtual tune tooth closes, and avoids patient from being ground repeatedly when trying dummy on, so as to substantially increase the precision and effect of dummy making
Rate.
Brief description of the drawings
Fig. 1 is the block diagram of workflow of the present invention；
Fig. 2 adjusts tooth to close platform technology route schematic diagram for virtual occlusion automatic detection with automatic；
Fig. 3-（1）For movement locus schematic diagram；
Fig. 3-（2）To sample schematic diagram；
Fig. 4-a are the schematic diagram on the interference region border of " seed " search technique；
Fig. 4-b are the schematic diagram of the selected seed triangle of " seed " search technique；
Fig. 4-c are the schematic diagram of the feed search of " seed " search technique；
Fig. 4-d are the schematic diagram that the search of " seed " search technique is completed.
In figure, 1, boundary edge；2nd, seed triangle；L1, first sampling section；L2, second sampling section；Ln, n-th sampling section；
L1、L2、―――――LnEqual length.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Referring to Fig. 1, a kind of virtual articulator design method for tooth crown bridge working bite relation face of the invention, including
Following steps：
1）With the three-dimensional track information of lower jaw characteristic kinematic during tooth crowding analyzer recording individual masticatory movement；
2）Tooth crowding analyzer work coordinate system is merged with denture 3-D scanning co-registration of coordinate systems used；
3）Create static intercuspal occlusion tooth crown bridge prosthesis CAD data；
4）Virtual occlusion automatic detection and the automatic foundation for adjusting tooth to close platform；
5）Virtual occlusion automatic detection；
6）Automatic virtual tune tooth closes, and creates the tooth crown bridge CAD data with working bite relation face.
The step 1）The Arch bar splint that middle tooth crowding analyzer is equipped with sensor is fixed on mandibular anterior teeth area,
Signal receiver is fixed on subject's head.During mandibular movement, sensor keeps geo-stationary with mandibular dentition, passes through
Computer signal Analysis, create three-dimensional tooth crowding.The individual masticatory movement includes：It is opened and closed mouth motion, mandibular protraction
The hybrid motion of motion, lower jaw lateral movement and three of the above motion.
The step 2）Refer to the setting mark plane on Arch bar splint, it is desirable to which there have between the mark plane and denture to be known fixed
Quantity space relation, and the quantitative description of spatial pose can be carried out with work coordinate system, using this mark plane as intermediary, realize
The accuracy registration of tooth crowding analyzer work coordinate system and denture 3-D scanning coordinate system and merge.
The step 3）It is to carry out preparing volume data extraction and camber counter solution successively on Imageware11 software platforms,
Ideal dental crowns data are read in, ideal dental crowns positioning, the personalized modification of axial plane, static anatomy occlusal surface, complete crown bridge prosthesis
Preliminary design.
As shown in Figure 2：
The step 4）It is using VC++2008 as development platform, based on the virtual occlusion developed under OpenGL figure shows storehouse
Automatic detection adjusts tooth to close platform with automatic.Virtual occlusion automatic detection closes platform with automatic tune tooth includes interference and collision detection module
Adjust tooth matched moulds block automatically with interference region.The two modules Guan Qiao that alternating action is completed in CAD design in the platform, so as to
Reach final dynamic occlusion " balance " state.
Interference and collision detection module：Mutual motion between lower jaw and the upper jaw is driven by tooth crowding.Colliding
In detection process, space motion path is sampled by the equal rule of neighbor point displacement, as Fig. 3-（1）, Fig. 3-（2）
It is shown, in lower jaw and upper jaw relative movement, when mandibular movement is to sampling point position, skill is detected using interference and collision
Art, with carrying out interference and collision detection to jaw tooth, if there is interference, interference is removed by adjusting tooth to close to Guan Qiao；Do not interfere, then continue
Relative motion.
Interference region adjusts tooth matched moulds block automatically：After interference region has been identified using interference and collision detection technique, " kind is utilized
Son " search technique identifies whole interference region（Shown in Fig. 4-a to Fig. 4-d）." seed " search technique is specially：Collision
Behind the border for interfering detection technique identification interference region（Shown in Fig. 4-a）, find " seed " triangular facet in interference region
Piece（Shown in Fig. 4-b）, tri patch around iterative search " seed " tri patch, to interfere border as search border, until searching
Rope to tri patch be not further added by untill, Fig. 4-c be search pilot process, Fig. 4-d for search after the completion of obtain it is whole
Individual interference region, after the completion of identification, in interference region, interference region is removed using local deformation technology.
Adjust the alternating action of tooth conjunction automatically with interference region by multiple impacts interference detection, be finally completed Guan Qiao tune tooth
Close.
The step 5）In, co-registration of coordinate systems used algorithm is primarily based on, realizes three-dimensional of the mandibular dentition relative to maxillary dentition
Virtual functions move, main to include the mixed of the motion of opening and closing mouth, mandibular protraction, lower jaw lateral movement and three of the above motion
Resultant motion；After the registration of relative coordinate system is completed, existed using the tooth crowding obtained by tooth crowding analyzer
The virtual occlusion automatic detection of exploitation closes the compound motion that lower jaw is simulated on platform with automatic tune tooth.During mandibular movement,
Using interference and collision detection module, detect in real time and feed back CAD complete crowns digital model and the interference situation to jaw tooth.Setting inspection
Survey threshold value（The thickness of virtual occluding paper）, the automatic detection dummy and between jaw tooth when mandibular movement is to a certain terminating point
Data are interfered, the numerical value of output be on the occasion of when represent there occurs data interference, represent the early contact zone of occlusion or interference range;Export number
When value is zero represent dummy with it is contactless to jaw tooth；Dummy is represented when output data is negative value and between jaw facies occlusalis dentis
Gap be present；Dummy occlusal surface is shown with multizone color gradient and the spatial relation between jaw denture, collision are done
Relate to detection technique and calculate dummy occlusion early contact point, the position of noise spot, distribution and interference region volume automatically.
The step 6）It is to adjust tooth to close on platform with automatic in virtually occlusion automatic detection, tooth is adjusted automatically using interference region
Matched moulds block, the identification of " seed " search technique simultaneously brightness enhancing display " early contact zone " or position, scope and the depth of " interference range " are utilized,
After operator confirms the tooth of needs " grinding ", interference region adjusts whether tooth matched moulds block automatic decision interference values are " just automatically
Value ", such as it is on the occasion of then virtual tune occlusal system calls joining cloud edit tool to carry out virtual tune tooth conjunction.Final create has
The tooth crown bridge CAD data in working bite relation face.
In the tooth crown bridge CAD stage, annotation dentistry can be automated and design and produce tooth crown bridge etc.
Dentistry knowledge, theory and clinical principle needed for the form of mouth mending material working bite relation face, realize working bite relation face
Digitlization, the Automation Design, the virtual complete adjustable tooth that can be used for oral restoration CAD/CAM technologies closes frame.
As described above, it more can sufficiently realize the present invention.It the foregoing is only the relatively reasonable implementation of the present invention
Example, protection scope of the present invention include but is not limited to this, and those skilled in the art is any to be based on the technology of the present invention side
Unsubstantiality denaturation change is included within the scope of the present invention includes in case.
Claims (5)
1. a kind of virtual articulator design method for tooth crown bridge working bite relation face, it is characterised in that including following step
Suddenly：
1) the three-dimensional track information of lower jaw characteristic kinematic when using tooth crowding analyzer recording individual masticatory movement；
2) tooth crowding analyzer work coordinate system is merged with denture 3-D scanning co-registration of coordinate systems used；
3) static intercuspal occlusion tooth crown bridge prosthesis CAD data is created；
4) virtually occlusion automatic detection and the automatic foundation for adjusting tooth to close platform；
5) virtually it is engaged automatic detection；
6) automatic virtual tune tooth closes, and creates the tooth crown bridge CAD data with working bite relation face；
In the step 5), co-registration of coordinate systems used algorithm is primarily based on, realizes three-dimensional of the mandibular dentition relative to maxillary dentition
Functional exercise, the main mixing fortune for including the motion of opening and closing mouth, mandibular protraction, lower jaw lateral movement and three of the above motion
It is dynamic；After the registration of relative coordinate system is completed, developed using the tooth crowding obtained by tooth crowding analyzer
Virtual occlusion automatic detection adjust tooth to close to simulate the compound motion of lower jaw on platform with automatic；During mandibular movement, application
Interference and collision detection module, detect in real time and feed back CAD complete crowns digital model and the interference situation to jaw tooth, set detection threshold
Value, the automatic detection dummy and to the data interference between jaw tooth when mandibular movement is to a certain terminating point, the numerical value of output is
On the occasion of when represent there occurs data interference, represent the early contact zone of occlusion or interference range；When output numerical value is zero represent dummy with
It is contactless to jaw tooth；Dummy is represented when output data is negative value and to gap be present between jaw facies occlusalis dentis；With multizone face
Color gradient shows dummy occlusal surface and the spatial relation between jaw denture, interference and collision detection technique is calculated automatically
Dummy is engaged early contact point, the position of noise spot, distribution and interference region volume；
The step 4) be using VC++2008 as development platform, it is automatic based on the virtual occlusion developed under OpenGL figure shows storehouse
Detection closes platform with automatic tune tooth, and the virtual automatic detection that is engaged includes interference and collision detection module with doing with adjusting tooth to close platform automatically
Relate to region and adjust tooth matched moulds block, the two modules Guan Qiao that alternating action is completed in CAD design in the platform, so as to reach automatically
Final dynamic occlusion " balance " state；
Interference and collision detection module：Mutual motion between lower jaw and the upper jaw is driven by tooth crowding；In collision detection
During, space motion path is sampled by the equal rule of neighbor point displacement, in lower jaw and upper jaw relative motion
During, when mandibular movement is to sampling point position, using interference and collision detection technique to Guan Qiao with being collided to jaw tooth
Interference detection, if there is interference, interference is removed by adjusting tooth to close；Do not interfere, then continue relative motion；
Interference region adjusts tooth matched moulds block automatically：After interference region has been identified using interference and collision detection technique, utilize " seed "
Search technique identifies whole interference region, and " seed " search technique is specially：Interference and collision detection technique identifies interference region
Behind the border in domain, " seed " tri patch in interference region is found, triangle around iterative search " seed " tri patch
Dough sheet, to interfere border untill the tri patch searched is not further added by, after the completion of identification, interfering as search border
In region, interference region is removed using local deformation technology；
Adjust the alternating action of tooth conjunction automatically with interference region by multiple impacts interference detection, the tune tooth for being finally completed Guan Qiao closes.
2. a kind of virtual articulator design method for tooth crown bridge working bite relation face according to claim 1, its
It is characterised by：Tooth crowding analyzer is equipped with the Arch bar splint of sensor and is fixed on mandibular anterior teeth in the step 1)
Area, signal receiver are fixed on subject's head, and during mandibular movement, sensor keeps geo-stationary with mandibular dentition,
By computer signal Analysis, three-dimensional tooth crowding is created.
3. a kind of virtual articulator design method for tooth crown bridge working bite relation face according to claim 1, its
It is characterised by：The step 2) refers to the setting mark plane on Arch bar splint, it is desirable to has between the mark plane and denture known
Quantity space relation, and the quantitative description of spatial pose can be carried out with work coordinate system, it is real using this mark plane as intermediary
Now the accuracy registration of jaw gripper path analysis instrument work coordinate system and denture 3-D scanning coordinate system and merge.
4. a kind of virtual articulator design method for tooth crown bridge working bite relation face according to claim 1, its
It is characterised by：The step 3) is to carry out preparing volume data extraction and camber counter solution successively on Imageware11 software platforms,
Ideal dental crowns data are read in, ideal dental crowns positioning, the personalized modification of axial plane, static anatomy occlusal surface, complete crown bridge prosthesis
Preliminary design.
5. a kind of virtual articulator design method for tooth crown bridge working bite relation face according to claim 1, its
It is characterised by：The step 6) is to adjust tooth to close on platform with automatic in virtually occlusion automatic detection, is adjusted automatically using interference region
Tooth matched moulds block, utilize the identification of " seed " search technique simultaneously brightness enhancing display " early contact zone " or position, scope and the depth of " interference range "
Degree, after operator confirms the tooth of needs " grinding ", interference region adjusts whether tooth matched moulds block automatic decision interference values are " just automatically
Value ", such as it is on the occasion of then virtual tune occlusal system calls joining cloud edit tool to carry out virtual tune tooth conjunction, and final create has
The tooth crown bridge CAD data in working bite relation face.
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| US20200261190A1 (en) * | 2018-03-16 | 2020-08-20 | Coredental Lab Yokohama Co., Ltd. | Try-in device and method for producing denture |
| KR102057207B1 (en) * | 2018-04-30 | 2019-12-18 | 주식회사 디디에스 | Method for analizing 3d oral model and method for designing virtual prosthetics having the same |
| CN110478068B (en) * | 2019-07-02 | 2021-06-15 | 北京大学口腔医学院 | Digital design method for bionic dental crown shape with individual function |
| CN110328856B (en) * | 2019-07-19 | 2021-04-30 | 上海交通大学医学院附属第九人民医院 | Method for manufacturing digital occlusal plate |
| CN110815493B (en) * | 2019-11-28 | 2021-03-23 | 四川大学 | Guide plate manufacturing method based on 3D model and used for anterior tooth restoration |
| CN111613332B (en) * | 2020-05-22 | 2022-10-04 | 中国人民解放军空军军医大学 | Method for evaluating occlusion meshing degree based on scanned image and finite element model |
| CN111973309B (en) * | 2020-07-24 | 2022-05-17 | 上海交通大学医学院附属第九人民医院 | Manufacturing method of blending guide plate |
| CN112155777A (en) * | 2020-09-04 | 2021-01-01 | 北京大学口腔医学院 | Bionic reconstruction method for space pose of tooth in occlusion function state |
| CN113096236B (en) * | 2021-03-23 | 2024-04-09 | 北京联袂义齿技术有限公司 | Virtual articulator design method for functional occlusal surface of dental crown bridge |
| CN113362955B (en) * | 2021-06-18 | 2023-09-29 | 北京联袂义齿技术有限公司 | Modeling and evaluation method for dental motion trail |
| CN117814753B (en) * | 2023-12-29 | 2024-06-18 | 南京航空航天大学 | Optimization and adjustment method of temporomandibular joint detection system |
-
2013
- 2013-12-17 CN CN201310695825.5A patent/CN104715099B/en active Active
Non-Patent Citations (6)
| Title |
|---|
| ARCUS digma下颌运动轨迹记录仪获取牙合架参数精确度的研究;李鸿波 等;《口腔颌面修复学杂志》;20050531;第6卷(第2期);第86-88页 * |
| The virtual articulator in dentistry：concept and development;Bernd Kordaß 等;《The Dental Clinics of North America》;20021221;第2002年卷(第46期);第493-506页 * |
| 基于OpenGL的三维牙颌模型可视化研究;赵越超 等;《计算机技术与发展》;20080131;第18卷(第1期);第119-121、125页 * |
| 用于全口义齿的人工牙三维坐标系的建立;王勇 等;《实用口腔医学杂志》;20050930;第21卷(第5期);第653-655页 * |
| 用于全口义齿计算机辅助设计的虚拟半可调牙合架;孙玉春 等;《北京大学学报（医学版）》;20080229;第40卷(第1期);第2.2、3.2、4.3.1节，图2 * |
| 虚拟牙合架软件系统和三维可视化研究;吴国星;《中国优秀硕士学位论文全文数据库.医药卫生科技辑》;20061215;第2006年卷(第12期);前言、第1、2节 * |
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