WO2000019930A1 - Fabrication d'un moule positif de la dentition d'un patient en vue de la creation d'un appareil orthodontique - Google Patents

Fabrication d'un moule positif de la dentition d'un patient en vue de la creation d'un appareil orthodontique Download PDF

Info

Publication number
WO2000019930A1
WO2000019930A1 PCT/US1999/023570 US9923570W WO0019930A1 WO 2000019930 A1 WO2000019930 A1 WO 2000019930A1 US 9923570 W US9923570 W US 9923570W WO 0019930 A1 WO0019930 A1 WO 0019930A1
Authority
WO
WIPO (PCT)
Prior art keywords
model
dentition
surface model
smaller
computer
Prior art date
Application number
PCT/US1999/023570
Other languages
English (en)
Other versions
WO2000019930A9 (fr
Inventor
Muhammad Chishti
Huafeng Wen
Original Assignee
Align Technology, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/169,034 external-priority patent/US6471511B1/en
Priority claimed from US09/264,547 external-priority patent/US7063532B1/en
Priority claimed from US09/311,715 external-priority patent/US6210162B1/en
Application filed by Align Technology, Inc. filed Critical Align Technology, Inc.
Priority to AU14441/00A priority Critical patent/AU1444100A/en
Publication of WO2000019930A1 publication Critical patent/WO2000019930A1/fr
Publication of WO2000019930A9 publication Critical patent/WO2000019930A9/fr

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • A61C13/0013—Production methods using stereolithographic techniques
    • 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

Definitions

  • the invention relates generally to the fields of dentistry and orthodontics.
  • Two-dimensional (2D) and three-dimensional (3D) digital image technology has recently 25 been tapped as a tool to assist in dental and orthodontic treatment.
  • Many treatment providers use some form of digital image technology to study the dentitions of patients.
  • U.S. patent application 09/169,276 describes the use of 2D and 3D image data in forming a digital model of a patient's dentition, including models of individual dentition components. That application also describes using the digital dentition models in developing an orthodontic treatment plan for the patient, as well as in creating one or more orthodontic appliances to implement the treatment plan.
  • Some of these orthodontic appliances are rigid, shell-like devices that fit over the patient's teeth, applying the forces necessary to move the teeth to prescribed final positions.
  • Such an appliance can be produced by pressure forming a sheet of material around a positive mold.
  • the positive mold is a solid block manufactured from a resin-based material in a rapid prototypmg cess:
  • the invention provides techniques for reducing the time and costs associated with producing positive molds for orthodontic appliances.
  • Conventional techniques involve the use of digital models that generate solid molds, in most cases leading to the use of material in areas that have no effect on the shapes of the orthodontic appliances.
  • the techniques described here yield hollow, shell-like molds that use just enough material to withstand the appliance fabrication process. These molds do not include any material in many or most of the areas that do not affect the shape of the orthodontic appliance. As a result, mold fabrication is quicker and less expensive because less material is used for each mold.
  • One technique for producing a positive mold involves obtaining a digital dentition model, such as a 3D geometric surface model or a 3D volumetric image model, that defines the shape of an orthodontic appliance; altering the digital dentition model to remove a portion that does not affect the shape of the orthodontic appliance; and then using the altered digital dentition model to construct the positive mold.
  • Processing circuitry such as a programmed computer, is used to obtain and alter the digital dentition model.
  • a rapid prototyping device such as a stereolithography machine, is commonly used to construct the positive mold.
  • altering the model involves creating another 3D surface model that is smaller than the 3D surface model of the dentition and defining a cutting surface that intersects both the 3D surface model of the dentition and the smaller 3D surface model.
  • a cut operation is performed along the cutting surface to form a single 3D surface model that follows contours of both the 3D surface model of the dentition and the smaller 3D surface model.
  • the single 3D surface model forms a shell having an outer surface that follows contours of the 3D surface model of the dentition and 5 an inner surface that follows contours of the smaller 3D surface model.
  • One technique for creating the smaller 3D surface model involves identifying an area that defines a cavity in the shell and forming the smaller 3D surface around the cavity.
  • the processing circuitry receives a 3D surface model of the dentition and creates a volumetric image model from the 3D surface model.
  • the smaller 3D surface model can then be produced by forming a 3D surface around the volumetric image model after removing the outer layer of volume elements
  • Another technique for creating the smaller 3D surface involves creating a copy of the 3D surface model of the dentition and reducing the size of the copy.
  • One way to reduce the size of the model is to select points on the model and move the points toward an inner portion of the model.
  • each of the points is a vertex on a 3D surface triangle
  • moving the points involves, for each point, calculating normals for the triangles that share the point, averaging the normals to create an averaged normal, and moving the point along the averaged normal.
  • Mathematical springs can be placed between adjacent pairs of the points to ensure that the triangle edges do not cross or buckle when the points are moved.
  • FIG. 1 is a cross sectional slice of a 3D volumetric digital model of a positive mold for use in producing an orthodontic appliance.
  • FIG. 2 is a cross sectional view of a solid mold for use in producing an orthodontic appliance.
  • FIG. 3 is a cross sectional view of a hollow mold for use in producing an orthodontic appliance.
  • FIG. 4 is a flow chart of a technique for creating a digital model of the hollow mold of FIG. 3.
  • FIGS. 5, 6, 7, 8, 9, 10 and 11 illustrate one implementation of the technique of FIG. 4.
  • FIGS. 12, 13, 14, 15 and 16 illustrate another implementation of the technique of FIG. 4.
  • FIG. 17 shows a system used in producing positive molds for orthodontic appliances.
  • One technique for forming the data set includes embedding a physical model of the patient's dentition in a potting material and optically scanning successive slices of the physical model with a destructive scanning system. This produces a three- dimensional (3D) volumetric image ("voxel representation") of the physical model.
  • the physical model and the potting material usually have sharply contrasting colors, such as white and black, so that the volume elements ("voxels") in the voxel representation that correspond to the dentition model contrast sharply with the voxels that correspond to the background image.
  • the applications incorporated above also describe computer-implemented techniques for using the digital dentition model in designing and simulating an orthodontic treatment plan for the patient.
  • One such technique involves receiving an initial data set that represents the patient's teeth before treatment, specifying a desired arrangement of the patient's teeth after treatment, and calculating the necessary translational and rotational forces that will move the teeth from the initial to the final positions.
  • the initial data set often is the voxel representation obtained by optically scanning the physical dentition model.
  • the computer creates a 3D geometric surface model from the voxel representation and uses the surface model as the initial data set.
  • U.S. applications 09/169,276 and 09/169,034 together describe techniques for designing and producing orthodontic appliances, such as polymer shell aligners, that carry out orthodontic treatment plans.
  • Polymeric shell aligners and similar appliances are designed to fit over the patient's teeth and exert the forces required to move the teeth to the desired final positions.
  • Polymeric shells are particularly useful because they are rigid enough and strong enough to carry out treatment, yet they are lightweight and, unlike conventional braces, are removable from the patient's mouth.
  • Polymeric shells also are invisible or nearly invisible to the naked eye and therefore are more appealing to patients who consider traditional braces unsightly.
  • One technique for producing polymeric shell aligners or similar appliances involves creating a positive mold and then vacuum molding a sheet of material over the mold.
  • a rapid prototyping machine selectively hardens portions of a fluid, resin-based material and then separates the hardened material from the remaining unhardened material.
  • the hardened material then serves as a positive mold for appliance fabrication.
  • Each appliance is formed by placing the corresponding mold and a sheet of moldable material, such as thermal forming dental material available from Tru-Tain Plastics in Rochester, Minnesota, into a conventional pressure or vacuum molding machine and forcing the material to conform permanently to the shape of the mold.
  • Suitable pressure molding and vacuum molding equipment is available from Great Lakes Orthodontics, Ltd., in Tonawanda, New York, and Raintree Essix, Inc.
  • FIG. 1 shows a partial slice 100 taken from a digital image model (voxel representation) of a positive mold for use in appliance fabrication.
  • Each image slice 100 in the voxel representation has a thickness of one voxel and includes both light-colored (e.g., white) voxels 105 and dark- colored (e.g., black) voxels 110.
  • the light-colored voxels represent the positive mold, which in many cases replicates the patient's dentition at a selected treatment stage, and the dark-colored voxels represent the background image.
  • a rapid prototyping machine analyzes each successive image slice 100 to identify the light-colored voxels and constructs the positive mold one layer at a time by hardening the fluid material at locations that correspond to the light-colored voxels.
  • FIG. 2 shows a cross-section of a typical dentition mold 115 produced in a rapid prototyping process.
  • the mold 115 is solid throughout.
  • FIG. 3 shows a hollow mold 120, or hollow shell, that requires less material than the solid mold 115.
  • the hollow mold 120 is lighter in weight than the solid mold 115, and the hollow mold 120 can be produced more quickly and less expensively than the solid mold 115.
  • FIG. 4 illustrates a computer-implemented technique for producing hollow molds.
  • the computer first receives or creates a digital data set embodying a 3D model of the solid mold (step 200).
  • the computer then alters or removes a portion of the data set lying within the model of the solid mold to form a model of a hollow mold (step 205).
  • the computer delivers the altered data set to a rapid prototyping device, such as a stereolithography machine, for use in constructing the hollow mold (step 210).
  • a rapid prototyping device such as a stereolithography machine
  • FIGS. 5 through 11 illustrate a specific implementation of this technique.
  • FIG. 6 shows a cross sectional slice 130 of the data set that includes a cross-section of the 3D geometric surface model 135.
  • the computer then converts the 3D geometric surface model 135 into a 3D volumetric model ("voxel model") 140 of the solid mold (step 225).
  • the computer receives a voxel model of the mold and therefore does need to create a voxel model from a geometric surface model.
  • FIG. 7 shows a cross-sectional slice of the voxel model 140, in which light-colored voxels 145 represent the mold and dark-colored voxels 150 represent the background image.
  • the light-colored voxels 145 are created to fit within the geometric surface model 135.
  • the computer selects a group of voxels 155 that represent the hollow portion of the mold (step 230). As shown in FIG. 8, one way of doing this is by "removing" a layer of voxels 160 on the outer surface of the voxel model, e.g., by altering the image values of these voxels 160 to make the voxels 160 part of the background image.
  • the thickness of the removed layer of voxels 160 defines the thickness of the hollow mold, or shell. The thicknesses of the molds often vary, but a shell thickness on the order of 0.5 mm is suitable in most instances.
  • voxels in the data set used to generate the hollow mold are larger than voxels in the initial data set obtained by scanning a physical model of the patient's dentition. Creating larger voxels reduces the amount of data in the data set from which the mold is created and therefore reduces the amount of time and system resources required to process the data and create the hollow mold.
  • the computer After removing the outer layer of voxels 160, the computer creates a geometric surface 165 around the group of voxels 155 that represent the hollow portion of the mold (step 235).
  • This geometric surface forms a model of the void or cavity to be formed in the mold.
  • FIG. 10 shows the relative size and position of the geometric surface model 165 of the cavity with respect to the geometric surface model 135 of the solid mold.
  • the computer then creates a plane 170 that intersects both geometric surface models 135, 165 near their bottom surfaces 175, 180 (step 240) and performs a mathematical cut operation at the plane 170 (step 245).
  • the resulting geometries include a geometric surface model 185 of the hollow mold and two geometric surfaces 190, 195 that have been severed from the hollow mold model 185.
  • the computer discards the severed JirfacesJi ⁇ JL 5 step. 2 i) ⁇ a d ⁇ hollow mold.
  • the computer converts the geometric surface model 185 into a voxel model before delivering the model to a rapid prototyping system (step 255).
  • the distance between the cutting plane 170 and the bottom surfaces 175, 180 of the geometric models 135, 165 is usually on the order of two voxels.(e.g., approximately 0.1 mm) so that only a very small portion of the model is discarded.
  • FIGS. 12 through 16 illustrate another implementation of the technique for producing the hollow mold 120.
  • a computer applying this implementation begins by receiving a 3D geometric surface model of the solid mold (step 260) and creating a duplicate copy of the geometric surface model (step 265). This implementation allows the computer to operate directly on the geometric surface model, instead of on a voxel model as described above.
  • FIG. 13 shows a portion of the duplicate geometric surface model 300, which in most cases is a triangular surface mesh having many control points, or vertices 305A-F, shared by the triangles in the mesh.
  • Each of the vertices 305A-F can be shared by virtually any number of triangles, although most are shared by only a few triangles, typically between three and seven triangles.
  • two of the vertices 305A, 305B shown in FIG. 13 are shared by five triangles and six triangles, respectively.
  • the geometric surface model almost always includes vertices that are shared by differing numbers of triangles.
  • FIG. 14 shows an example in which the computer has moved two of the vertices 305D, 305E and has added a vertex 305G to ensure that six triangles share the center vertex 305A.
  • the computer places mathematical "springs” 31 OA-L between each pair of adjacent vertices, along the edges of the triangles in the mesh (step 275).
  • These springs 31 OA-L allow the computer to adjust the positions of the vertices 305 A-G in a nonlinear manner, so that each of the vertices 305A-G can change positions without buckling or crossing the triangle edges.
  • the computer can shrink the duplicate geometric surface model 300 without deforming or changing the shape of the model 300.
  • the computer calculates a "normal" 315 for each vertex by calculating ⁇ dJhej ⁇ j r ⁇ xagingithe ⁇
  • the computer then shrinks the model by moving each of the vertices 305 A-G by a predetermined amount along the corresponding normal 315 (step 285).
  • the computer moves each of the vertices 305 A-G inward by approximately 0.5 mm.
  • the computer creates a surface model of the hollow mold by defining a cutting plane, as described above, and performing a mathematical cut operation along the plane near the bottom surfaces of the original and duplicate geometric surface models (step 290).
  • the computer then removes unwanted, severed surfaces from the model (step 295) and, in most cases, converts the geometric surface model of the hollow mold into a voxel model (step 299).
  • FIG. 17 shows a system used in producing positive molds for orthodontic appliances.
  • the system includes a processing unit, such as a programmed computer 340, coupled to a mold producing system, such as a stereolithography machine or other rapid prototyping system 350.
  • the computer 340 receives a digital dentition model, such as a 3D surface model or a volumetric image model, from an acquisition system 360, such as a laser scanning or destructive scanning device.
  • the computer 340 manipulates the digital dentition model to form a digital model of the hollow mold, as described above, and then delivers the altered model to the rapid prototyping system.
  • Some implementations of the invention are realized in digital electronic circuitry, such as an application specific integrated circuit (ASIC); others are realized in computer hardware, firmware, and software, or in combinations of digital circuitry and computer components.
  • the invention is usually embodied, at least in part, as a computer program tangibly stored in a machine-readable storage device for execution by a computer processor. In these situations, methods embodying the invention are performed when the processor executes instructions organized into program modules, operating on input data and generating output.
  • Suitable processors include general and special purpose microprocessors, which generally receive instructions and data from read-only memory and/or random access memory devices.
  • Storage devices that are suitable for tangibly embodying computer program instructions include all forms of non- volatile memory, including semiconductor memory devices, such as EPROM, EEPROM, and flash memory devices; magnetic disks such as internal hard disks and removable disks; nagnetoaoptical isks; and CD ⁇ ROM

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un moule positif permettant de créer un appareil orthodontique. On obtient ce moule en générant un modèle de dentition numérique (200), tel qu'un modèle à surface géométrique tridimensionnelle ou à images volumétriques tridimensionnelles qui définit la forme de l'appareil orthodontique, et en modifiant le modèle de dentition numérique (205) par la suppression d'une partie de ses données, qui n'affecte pas la forme de l'appareil orthodontique. On utilise ensuite (210) le modèle de dentition numérique modifié pour fabriquer un moule positif destiné à l'appareil orthodontique. Pour obtenir et modifier le modèle de dentition numérique, on utilise des circuits de traitement, par exemple, un ordinateur programmé. Le moule positif est fabriqué au moyen d'un dispositif rapide de modélisation de prototypes, telle qu'une machine stéréolithographique.
PCT/US1999/023570 1998-10-08 1999-10-08 Fabrication d'un moule positif de la dentition d'un patient en vue de la creation d'un appareil orthodontique WO2000019930A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14441/00A AU1444100A (en) 1998-10-08 1999-10-08 Creating a positive mold of a patient's dentition for use in forming an orthodontic appliance

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US16927698A 1998-06-19 1998-06-19
US09/169,034 US6471511B1 (en) 1997-06-20 1998-10-08 Defining tooth-moving appliances computationally
US09/169,276 1998-10-08
US09/169,034 1998-10-08
US09/264,547 US7063532B1 (en) 1997-06-20 1999-03-08 Subdividing a digital dentition model
US09/264,547 1999-03-08
US09/311,715 US6210162B1 (en) 1997-06-20 1999-05-14 Creating a positive mold of a patient's dentition for use in forming an orthodontic appliance
US09/311,715 1999-05-14

Publications (2)

Publication Number Publication Date
WO2000019930A1 true WO2000019930A1 (fr) 2000-04-13
WO2000019930A9 WO2000019930A9 (fr) 2000-09-08

Family

ID=27496816

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/023570 WO2000019930A1 (fr) 1998-10-08 1999-10-08 Fabrication d'un moule positif de la dentition d'un patient en vue de la creation d'un appareil orthodontique

Country Status (3)

Country Link
AU (1) AU1444100A (fr)
TW (1) TW476634B (fr)
WO (1) WO2000019930A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696950B2 (en) 2001-10-12 2004-02-24 C. Thomas Adolphson Golf bag alarm
CN108999289A (zh) * 2018-07-19 2018-12-14 江苏东南结构防灾工程有限公司 数字生形混凝土板壳制造工艺
US10945812B1 (en) 2020-07-24 2021-03-16 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US10950061B1 (en) 2020-07-23 2021-03-16 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US10945811B1 (en) 2019-12-04 2021-03-16 Oxilio Ltd Systems and methods for determining orthodontic treatments
US10952819B1 (en) 2019-12-04 2021-03-23 Oxilio Ltd Methods and systems for making an orthodontic aligner having fixing blocks
US10952817B1 (en) 2019-12-04 2021-03-23 Oxilio Ltd Systems and methods for determining orthodontic treatments
US10984549B2 (en) 2018-06-21 2021-04-20 3D Med Ag Systems and methods for forming a desired bend angle in an orthodontic appliance
US10993782B1 (en) 2020-09-08 2021-05-04 Oxilio Ltd Systems and methods for determining a tooth trajectory
US11026767B1 (en) 2020-07-23 2021-06-08 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US11055850B1 (en) 2021-01-06 2021-07-06 Oxilio Ltd Systems and methods for tooth segmentation
US11058515B1 (en) 2021-01-06 2021-07-13 Arkimos Ltd. Systems and methods for forming dental appliances
US11116606B1 (en) 2021-01-06 2021-09-14 Arkimos Ltd. Systems and methods for determining a jaw curve
US11166787B1 (en) 2021-01-06 2021-11-09 Arkimos Ltd Orthodontic attachment systems and methods
US11191618B1 (en) 2021-01-06 2021-12-07 Arkimos Ltd Systems and methods for forming a dental appliance
US11197742B2 (en) 2018-08-31 2021-12-14 3D Med Ag Intra-oral device
US11197744B1 (en) 2021-01-06 2021-12-14 Arkimos Ltd Method and system for generating interdental filler models
US11253338B2 (en) 2020-02-18 2022-02-22 Arkimos Ltd Method of determining deformation of gingiva
US11273008B2 (en) 2019-12-04 2022-03-15 Oxilio Ltd Systems and methods for generating 3D-representation of tooth-specific appliance
USD958170S1 (en) 2020-09-08 2022-07-19 Arkimos Ltd Display screen or portion thereof with graphical user interface
US11439481B2 (en) 2020-05-19 2022-09-13 Arkimos Ltd Systems and methods for determining tooth center of resistance
US11600376B2 (en) 2019-12-05 2023-03-07 Oxilio Ltd Systems and methods for generating 3D-representation of tooth-specific platform for dental appliance
US11607827B2 (en) 2019-12-04 2023-03-21 Oxilio Ltd Methods and systems for thermoforming orthodontic aligners
US11864936B2 (en) 2020-04-08 2024-01-09 Oxilio Ltd Systems and methods for determining orthodontic treatment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI644655B (zh) 2017-11-23 2018-12-21 勘德股份有限公司 數位齒模分割方法及數位齒模分割裝置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324546A (en) * 1979-09-12 1982-04-13 Paul Heitlinger Method for the manufacture of dentures and device for carrying out the method
US5139419A (en) * 1990-01-19 1992-08-18 Ormco Corporation Method of forming an orthodontic brace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324546A (en) * 1979-09-12 1982-04-13 Paul Heitlinger Method for the manufacture of dentures and device for carrying out the method
US5139419A (en) * 1990-01-19 1992-08-18 Ormco Corporation Method of forming an orthodontic brace

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696950B2 (en) 2001-10-12 2004-02-24 C. Thomas Adolphson Golf bag alarm
US10984549B2 (en) 2018-06-21 2021-04-20 3D Med Ag Systems and methods for forming a desired bend angle in an orthodontic appliance
CN108999289A (zh) * 2018-07-19 2018-12-14 江苏东南结构防灾工程有限公司 数字生形混凝土板壳制造工艺
US11197742B2 (en) 2018-08-31 2021-12-14 3D Med Ag Intra-oral device
US10945811B1 (en) 2019-12-04 2021-03-16 Oxilio Ltd Systems and methods for determining orthodontic treatments
US10952817B1 (en) 2019-12-04 2021-03-23 Oxilio Ltd Systems and methods for determining orthodontic treatments
US11273008B2 (en) 2019-12-04 2022-03-15 Oxilio Ltd Systems and methods for generating 3D-representation of tooth-specific appliance
US10952819B1 (en) 2019-12-04 2021-03-23 Oxilio Ltd Methods and systems for making an orthodontic aligner having fixing blocks
US11607827B2 (en) 2019-12-04 2023-03-21 Oxilio Ltd Methods and systems for thermoforming orthodontic aligners
US11600376B2 (en) 2019-12-05 2023-03-07 Oxilio Ltd Systems and methods for generating 3D-representation of tooth-specific platform for dental appliance
US11253338B2 (en) 2020-02-18 2022-02-22 Arkimos Ltd Method of determining deformation of gingiva
US11864936B2 (en) 2020-04-08 2024-01-09 Oxilio Ltd Systems and methods for determining orthodontic treatment
US11439481B2 (en) 2020-05-19 2022-09-13 Arkimos Ltd Systems and methods for determining tooth center of resistance
US11026767B1 (en) 2020-07-23 2021-06-08 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US11386634B2 (en) 2020-07-23 2022-07-12 Arkimos Ltd Systems and methods for planning an orthodontic treatment by reconstructing a 3D mesh model of a gingiva associated with an arch form
US10950061B1 (en) 2020-07-23 2021-03-16 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US11490994B2 (en) 2020-07-24 2022-11-08 Arkimos Ltd. Systems and methods for planning an orthodontic treatment by reconstructing a 3D mesh model of a gingiva assosiated with an arch form
US10945812B1 (en) 2020-07-24 2021-03-16 Oxilio Ltd Systems and methods for planning an orthodontic treatment
US10993782B1 (en) 2020-09-08 2021-05-04 Oxilio Ltd Systems and methods for determining a tooth trajectory
US11678959B2 (en) 2020-09-08 2023-06-20 Oxilio Ltd Systems and methods for determining a tooth trajectory
USD958170S1 (en) 2020-09-08 2022-07-19 Arkimos Ltd Display screen or portion thereof with graphical user interface
US11166787B1 (en) 2021-01-06 2021-11-09 Arkimos Ltd Orthodontic attachment systems and methods
US11197744B1 (en) 2021-01-06 2021-12-14 Arkimos Ltd Method and system for generating interdental filler models
US11564776B2 (en) 2021-01-06 2023-01-31 Arkimos Ltd Orthodontic attachment systems and methods
US11116606B1 (en) 2021-01-06 2021-09-14 Arkimos Ltd. Systems and methods for determining a jaw curve
US11058515B1 (en) 2021-01-06 2021-07-13 Arkimos Ltd. Systems and methods for forming dental appliances
US11625831B2 (en) 2021-01-06 2023-04-11 Oxilio Ltd Systems and methods for determining an orthodontic treatment for a subject based on tooth segmentation
US11653999B2 (en) 2021-01-06 2023-05-23 Arkimos Ltd Systems and methods for forming a dental appliance
US11191618B1 (en) 2021-01-06 2021-12-07 Arkimos Ltd Systems and methods for forming a dental appliance
US11751975B2 (en) 2021-01-06 2023-09-12 Oxilio Ltd Systems and methods for determining a jaw curve
US11850112B2 (en) 2021-01-06 2023-12-26 Oxilio Ltd Systems and methods for forming dental appliances
US11055850B1 (en) 2021-01-06 2021-07-06 Oxilio Ltd Systems and methods for tooth segmentation

Also Published As

Publication number Publication date
WO2000019930A9 (fr) 2000-09-08
TW476634B (en) 2002-02-21
AU1444100A (en) 2000-04-26

Similar Documents

Publication Publication Date Title
US6210162B1 (en) Creating a positive mold of a patient's dentition for use in forming an orthodontic appliance
WO2000019930A1 (fr) Fabrication d'un moule positif de la dentition d'un patient en vue de la creation d'un appareil orthodontique
US7831322B2 (en) Producing wrinkled dental aligner for dental treatment
US7384266B2 (en) Method and apparatus for manufacturing and constructing a physical dental arch model
CN109890317B (zh) 具有切割线标记的模具和对准器
EP2053984B1 (fr) Procédé de fabrication d'aligneurs orthodontiques
US20060199142A1 (en) Dental aligner for providing accurate dental treatment
CN102655996B (zh) 专门制作的软性元件
US20220015864A1 (en) System For Preparing Teeth For The Placement Of Veneers
US7993134B2 (en) Accurately predicting and preventing interference between tooth models
US7293988B2 (en) Accurately predicting and preventing interference between tooth models
CN111743644B (zh) 具有弱化区域的模具
US8155780B2 (en) System and method for automated generating of a cutting curve on a surface
EP1368986B1 (fr) Procede de moulage de pieces auriculaires personnalisees
WO2019071037A1 (fr) Charges virtuelles pour modèles virtuels d'arcades dentaires
US20130323665A1 (en) Orthodontic aligners, methods of using such aligners, and additive manufacturing methods and apparatus for making and using such aligners
JP6403802B2 (ja) 義歯床半製品の製造方法
EP2349059A1 (fr) Procédé et système de formation d'une prothèse dentaire
CN110192923B (zh) 壳状矫治器及其制作方法
CN211633659U (zh) 壳状牙齿正畸矫治器
CN117635870A (zh) 牙齿三维数字模型处理方法
US20240065807A1 (en) 3d facial reconstruction and visualization in dental treatment planning
US20220242046A1 (en) Methods of Forming Orthodontic Appliances
WO2024049918A2 (fr) Reconstruction et visualisation faciales 3d dans une planification de traitement dentaire
KR20230050428A (ko) 치과 조형물의 화상 데이터 작성 방법, 치과 조형물의 화상 데이터 작성 장치, 치과 조형물의 화상 데이터 작성 프로그램, 치과 조형물의 제조 방법 및 치과 조형물

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref country code: AU

Ref document number: 2000 14441

Kind code of ref document: A

Format of ref document f/p: F

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: C2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: C2

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

COP Corrected version of pamphlet

Free format text: PAGES 1-9, DESCRIPTION, REPLACED BY NEW PAGES 1-12; PAGES 10-17, CLAIMS, REPLACED BY NEW PAGES 13-21; PAGES 1/6-6/6, DRAWINGS, REPLACED BY NEW PAGES 1/6-6/6; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase