WO2017111184A1 - Procédé de modélisation de dents - Google Patents

Procédé de modélisation de dents Download PDF

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Publication number
WO2017111184A1
WO2017111184A1 PCT/KR2015/014067 KR2015014067W WO2017111184A1 WO 2017111184 A1 WO2017111184 A1 WO 2017111184A1 KR 2015014067 W KR2015014067 W KR 2015014067W WO 2017111184 A1 WO2017111184 A1 WO 2017111184A1
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WO
WIPO (PCT)
Prior art keywords
tooth
shape
teeth
modifying
model
Prior art date
Application number
PCT/KR2015/014067
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English (en)
Korean (ko)
Inventor
김태환
Original Assignee
김태환
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
Application filed by 김태환 filed Critical 김태환
Publication of WO2017111184A1 publication Critical patent/WO2017111184A1/fr

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    • 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
    • A61C13/08—Artificial teeth; Making same
    • 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
    • A61C13/34—Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • the present invention relates to a method of modeling a tooth, and more particularly, to a modeling method for generating a tooth model for use in dental treatment.
  • CAD computer aided design
  • CAM computer aided manufacturing
  • a dental mold for processing the upper and lower teeth of the lower jaw is mounted on the processing tray, and a file which scans the oral condition of the patient through the oral scanner is sent to the computer according to the program setting designed. It is designed to process the tooth shape using a working machining tool.
  • Patent No. 10-1329732 name: model assembly for manufacturing tooth model
  • horseshoe type dental mold which is the base material of the upper and lower jaw pre-shape processing
  • a plurality of model bases used for fixing the dental mold, and serving as an upper and lower jaw occlusal state measurement and a manufacturing part of the tooth model
  • As the model base is closely assembled on the upper and lower outer surfaces, respectively, a plurality of orthodontic molds are disposed to face each other, and the center base is fixedly mounted to the prosthetic machine;
  • a tooth mold which is further provided and coupled to the front end portion of the center base, as a base material for abutment-shape processing, wherein the model assembly for manufacturing a tooth model is described.
  • One embodiment of the present invention provides a method for modeling an aesthetically superior tooth model.
  • an embodiment of the present invention provides a method for modeling a tooth model that can be applied according to various body characteristics of the subject to which the tooth model is applied.
  • a method for modeling a tooth model for the arch of the computing device including the upper and lower teeth the teeth by scanning the teeth or teeth A scan step of obtaining data on the shape of the field; Generating a tooth model based on the obtained data; Modifying the shapes of the teeth included in the generated tooth model according to a user input; And modifying the tooth model such that the tooth model is symmetrical with respect to the center line.
  • modeling method according to another embodiment may further include changing the angle of the maxillary and mandibular included in the modified tooth model.
  • the tooth model may include information on the arrangement of the plurality of teeth.
  • the step of modifying the shape of the teeth the step of loading the shape of one of the teeth included in the tooth model; Modifying the shape of the loaded tooth; And reflecting the shape of the modified tooth to the tooth model.
  • modifying the shape of the loaded tooth may include adjusting the flatness of the upper portion of the tooth.
  • the modifying the shape of the loaded tooth may include removing the surface of the shape of the loaded tooth to a predetermined thickness.
  • modifying the shape of the loaded tooth may include modifying the length of the shape of the loaded tooth.
  • the step of modifying the tooth model selecting a left side or a right side divided based on the center line; Copying and inverting the arrangement of the shapes of the teeth contained in the selected face; And replacing the shape of the teeth included in the non-selected face with an array of shapes of the copied and inverted teeth.
  • 1 is an exemplary view illustrating shapes of teeth included in a tooth model, according to an exemplary embodiment.
  • FIG. 2 is a flowchart illustrating a process of modeling a tooth model, according to an exemplary embodiment.
  • FIG 3 is a conceptual diagram illustrating a process of modifying a tooth model such that the tooth model is symmetrical with respect to the center line according to an embodiment.
  • FIG. 4 is an exemplary diagram for describing a tooth model formed according to an exemplary embodiment.
  • FIG. 5 is a conceptual diagram illustrating a process of changing an angle of a maxillary or mandible included in a tooth model, according to an exemplary embodiment.
  • FIG. 6 is a conceptual diagram illustrating a process of removing a surface of a tooth shape to a predetermined thickness according to an embodiment.
  • FIG. 7 is a conceptual diagram illustrating a process of adjusting the flatness of the upper tooth in accordance with an embodiment.
  • FIG. 8 is a conceptual diagram illustrating a process of correcting a length of a tooth shape according to an exemplary embodiment.
  • FIG. 9 is a block diagram schematically illustrating a structure of a computing device according to an exemplary embodiment.
  • a method of modeling a tooth model for a arch of the computing device including upper and lower teeth includes: a scanning step of scanning a tooth or a toothbone to obtain data about the shape of the teeth; Generating a tooth model based on the obtained data; Modifying the shapes of the teeth included in the generated tooth model according to a user input; And modifying the tooth model such that the tooth model is symmetrical with respect to the center line.
  • a “teeth model” is a collection of data that includes at least one of information about the appearance of a tooth, information about the arrangement of the teeth, and information about the boundary between the tooth and the gum, and includes a prosthesis or an artificial tooth. It can be used to make the back.
  • “teeth models” can be applied to computer aided manufacturing (CAM) technology to produce the appearance of prosthetics or artificial teeth.
  • FIG. 1 is an exemplary view illustrating shapes of teeth included in a tooth model 100 according to an exemplary embodiment.
  • Tooth model 100 means that the shape of at least one tooth is arranged.
  • the tooth model 100 may include a shape for at least one of the upper jaw 110 and the lower jaw 120.
  • the tooth model 100 includes the teeth 11 to 18 included in the left surface 112 and the centerline 111 of the maxillary 110 based on the centerline 111 of the maxillary 110.
  • the teeth 21 to 28 included in the right side 113, the teeth 31 to 38 included in the right side 123 based on the centerline 121 of the mandible 120, and the mandible It may be the shape of the teeth 41 to 48 included in the left surface 122 and their arrangement with respect to the center line 121 of 120.
  • the present invention is not limited thereto, and the tooth model 100 may be configured by only some shapes of the teeth of FIG. 1 and their arrangement.
  • FIG. 2 is a flowchart illustrating a process of modeling a tooth model, according to an exemplary embodiment.
  • 3 is a conceptual diagram illustrating a process of modifying a tooth model such that the tooth model is symmetrical with respect to the center line according to an embodiment.
  • 4 is an exemplary view for explaining a tooth model formed according to an embodiment.
  • the computing device may acquire data about a shape of a tooth by scanning a tooth of a target vehicle or a tooth bone modeled after a tooth. For example, by photographing or viewing a subject's tooth or tooth bone, the external shape of the tooth, the information on the boundary area between the gum and the tooth, the information on the arrangement of the tooth, and the like are numerically detected to form a tooth model. Data can be obtained.
  • the computing device may use a separate device such as an imaging device to scan the teeth or the tooth bone of the subject.
  • the computing device may be a device capable of processing electronic data, such as a desktop, a tablet PC, a laptop, but is not limited thereto.
  • the computing device may generate a tooth model based on the obtained data.
  • the computing device may obtain an initially generated basic tooth model 410 based on the obtained data.
  • the basic tooth model 410 shown in FIG. 4 is a basic tooth model 410 that includes the shape of anterior teeth.
  • the basic tooth model 410 initially generated by scanning a subject's teeth or tooth bones does not have symmetrical shapes of teeth at corresponding positions with respect to the center line 111, and the shape of the teeth It may include shapes that are not aesthetically appropriate due to wear or damage. Therefore, it is necessary to modify the shape of the tooth included in the basic tooth model 410 or the structure of the basic tooth model 410.
  • the computing device may modify the shape of at least one tooth included in the tooth model.
  • the method of modifying the shape of the tooth may be variously implemented according to an embodiment.
  • the computing device may load the tooth model using a CAD program and modify the shape of the tooth included in the tooth model based on user information input through the input unit.
  • the computing device may correct a damaged portion or an aesthetically inappropriate portion of the tooth included in the tooth model.
  • the computing device may load the shape of one tooth among the shape of at least one tooth included in the tooth model. The computing device may then modify the shape of the loaded tooth.
  • the computing device may receive a user input through the input unit and modify the shape of the tooth through a CAD program based on the received user input, but is not limited thereto.
  • the computing device may reflect the shape of the modified tooth in the tooth model.
  • a user may incorrectly select a tooth to correct the shape of the tooth.
  • the user may select and modify the tooth 12 of FIG. 1.
  • the computing device in order to apply to the tooth model, the computing device may be inverted and applied to the tooth model.
  • the computing device may modify the tooth model.
  • the computing device may modify the overall arrangement of the teeth included in the tooth model or the shape of the tooth model.
  • the computing device may modify the tooth model such that the tooth model is symmetrical about the centerline.
  • the computing device may select a left or right side relative to the centerline with respect to the tooth model. Thereafter, the computing device may copy the shape and the arrangement of the teeth included in the selected surface, and then reverse the shape and the arrangement of the copied teeth. Thereafter, the computing device may replace the shape and arrangement of the teeth included in the non-selected surface with the shape and arrangement of the copied and inverted teeth so that the tooth model is symmetric about the centerline.
  • the computing device includes a tooth model 100-1 in which the teeth included in the left side 112 and the teeth included in the right side 113 are symmetrical with respect to the center line 111. ) Can be obtained.
  • the computing device may obtain a final tooth model 420 symmetrical with respect to the centerline 111 as shown in FIG. 4 by performing steps S230 and S240.
  • FIG. 2 is for describing an embodiment, and the process illustrated in FIG. 2 may be changed according to an embodiment.
  • FIG. 2 shows that step S240 is performed after step S230 is performed, S240 may be performed first or two steps may be repeatedly performed alternately.
  • the computing device may further perform a process of changing the maxillary or mandibular angle included in the tooth model in operation S240 of FIG. 2.
  • FIG. 5 is a conceptual diagram illustrating a process of changing an angle of a maxillary or mandible included in a tooth model, according to an exemplary embodiment. Since there are various forms of the arch of the subject to which the prosthesis manufactured by using the tooth model is applied, it is necessary to change the angle of the tooth model differently according to the subject.
  • the computing device may adjust the angle of the horseshoe shape 511 of the tooth model 510.
  • the computing device may modify the tooth model 510 like the first modified tooth model 520 by reducing the angle of the horseshoe shape 511.
  • the computing device may modify the tooth model 510 like the second modified tooth model 530 by increasing the angle of the horseshoe shape 511.
  • the prosthesis may be manufactured in the form of an outer wall of a material such as ceramic or resin around the inner core and the surroundings.
  • the computing device may remove the surface of the tooth loaded at a predetermined thickness in operation S230.
  • 6 is a conceptual diagram illustrating a process of removing a surface of a tooth shape to a predetermined thickness according to an embodiment. Referring to FIG. 6, after the computing device loads the shapes 611, 612, and 613 of the respective teeth in the tooth model 600, the computing device may set a thickness to be removed with respect to the loaded tooth shape. Shapes 621, 622, 623 of the tooth having been removed to a constant thickness along the surface from the shape of the loaded tooth may be created. After the prosthesis is manufactured based on the shapes of the modified teeth 621, 622, and 623, the final prosthesis may be made by combining an outer wall of a material such as ceramic or resin to the outside of the manufactured prosthesis.
  • the computing device may adjust the flatness of the upper portion of the tooth included in the tooth model.
  • 7 is a conceptual diagram illustrating a process of adjusting the flatness of the upper tooth in accordance with an embodiment.
  • the computing device may modify the shape of the tooth 710 such that the flatness of the upper portion 715 of the tooth 710 is increased.
  • a modified shape 720 of the tooth with a higher flatness of the upper 725 can be obtained.
  • the computing device may further modify the shape of the upper portion 725 of the modified shape 720 to obtain the shape 730 of the tooth with the higher flatness of the upper portion 735.
  • the computing device may modify the length of the shape of the tooth in step S230.
  • 8 is a conceptual diagram illustrating a process of correcting a length of a tooth shape according to an exemplary embodiment.
  • the computing device may acquire the shape 820 of the modified length tooth by vertically enlarging the shape 810 of the loaded tooth.
  • the computing device may not only modify the length of the shape of the tooth, but also generate information about the shape of the tooth such that the shape of the tooth includes the root portion of the tooth.
  • the computing device may determine the shape of the appropriate root portion in accordance with the shape of the tooth.
  • FIG. 9 is a block diagram schematically illustrating a structure of a computing device 1000 according to an exemplary embodiment.
  • the computing device 1000 may include an input unit 1010, a control unit 1020, and a display unit 1030.
  • the computing device 1000 illustrated in FIG. 9 is for describing an exemplary embodiment, and according to the exemplary embodiment, the computing device 1000 may include more components than those illustrated in FIG. 9, or may include only some components. It may be.
  • the input unit 1010 may receive a user input and provide the received user input to the controller 1020.
  • the input unit 1010 may include at least one of a keyboard, a mouse, a tablet, a camera, and a touch screen, but is not limited thereto.
  • the input unit 1010 may acquire data on the shape of the tooth by scanning the tooth or the tooth bone. For example, by photographing or viewing a subject's tooth or tooth bone, the external shape of the tooth, the information on the boundary area between the gum and the tooth, the information on the arrangement of the tooth, and the like are numerically detected to form a tooth model. Data can be obtained.
  • the input unit 1010 may provide the controller 1020 with data about the acquired shape of the tooth.
  • the controller 1020 may perform a command according to a user input and process data.
  • the controller 1020 may include at least one processor for data processing.
  • the controller 1020 may generate a tooth model based on data obtained by scanning a tooth or a tooth bone.
  • the controller 1020 may modify the tooth model or the shape of the tooth included in the tooth model based on a user input input through the input unit 1010.
  • the method of modifying the shape of the tooth may be variously implemented according to an embodiment.
  • the controller 1020 may load a tooth model using a CAD program, and may modify a shape of a tooth included in the tooth model based on user information input through an input unit.
  • the controller 1020 may modify the overall arrangement of the teeth included in the tooth model or the shape of the tooth model.
  • the controller 1020 may modify the tooth model such that the tooth model is symmetric with respect to the center line.
  • the controller 1020 may select a left side or a right side based on the center line with respect to the tooth model according to a user input. Thereafter, the controller 1020 may copy the shape and the arrangement of the teeth included in the selected surface, and then reverse the shape and the arrangement of the copied teeth. Thereafter, the controller 1020 may replace the shape and arrangement of the teeth included in the unselected surface with the shape and arrangement of the copied and inverted teeth so that the tooth model is symmetric with respect to the center line.
  • the controller 1020 may adjust the angle of the tooth model, remove the surface of the tooth shape to a certain thickness, adjust the flatness of the upper portion of the tooth shape, or modify the length of the tooth shape.
  • the display 1030 may display a tooth model generated by the controller 1020.
  • the display 1030 may include an LCD panel, a PDP, a CRT, or a projector, but is not limited thereto.
  • Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media.
  • Computer readable media may include both computer storage media and communication media.
  • Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.
  • Communication media typically includes computer readable instructions, data structures, or program modules, or other transport mechanisms, and may include any information delivery media.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention concerne un procédé de modélisation destiné à produire un modèle de dents utilisé pour un traitement dentaire. Le procédé de modélisation peut comprendre les étapes consistant à : numériser des dents ou un moule de dents pour obtenir des données sur la forme des dents ; produire un modèle de dents sur la base des données obtenues ; modifier la forme des dents comprises dans le modèle de dents produit, selon une entrée d'utilisateur ; et modifier le modèle de dents pour rendre le modèle de dents symétrique en fonction d'une ligne centrale.
PCT/KR2015/014067 2015-12-22 2015-12-22 Procédé de modélisation de dents WO2017111184A1 (fr)

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KR1020150183416A KR101641840B1 (ko) 2015-12-22 2015-12-22 치아 모델링 방법
KR10-2015-0183416 2015-12-22

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KR101873517B1 (ko) * 2017-04-25 2018-08-02 오스템임플란트 주식회사 치아 보철물 모델의 디자인 방법, 장치 및 그 방법을 실행하기 위한 프로그램이 기록된 기록 매체
KR101872393B1 (ko) 2017-09-06 2018-06-28 단국대학교 산학협력단 개인맞춤형 치아 모델링 방법
US11039905B2 (en) 2017-11-06 2021-06-22 Dds Company Prosthesis design method and system based on arch line
KR101984028B1 (ko) * 2017-11-06 2019-06-04 주식회사 디디에스 아치라인에 기초한 보철물 디자인 방법 및 시스템
KR102073478B1 (ko) * 2018-06-25 2020-02-04 오스템임플란트 주식회사 구강 스캔 정보를 이용하여 치아 교정 모델을 셋업하는 장치 및 그 방법
KR102214615B1 (ko) * 2019-08-08 2021-02-15 오스템임플란트 주식회사 교합을 고려한 치아 정렬 제공 장치 및 방법
KR102227460B1 (ko) * 2019-09-03 2021-03-12 오스템임플란트 주식회사 교정치료를 위한 치아 배열 방법 및 이를 수행하는 교정 캐드 시스템
KR102361406B1 (ko) * 2020-03-18 2022-02-11 오스템임플란트 주식회사 가상 치근 병합 방법 및 장치
KR102363338B1 (ko) * 2020-06-05 2022-02-16 오스템임플란트 주식회사 치아 계측 정보 표시 방법, 치아 계측 정보 표시 장치 및 기록매체
KR102364905B1 (ko) * 2021-07-01 2022-02-21 가톨릭대학교산학협력단 한국인에서 표준화된 c형 근관을 가지는 치아의 제조방법

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