WO2014069934A1 - Dispositif de colorisation de données dentaires - Google Patents

Dispositif de colorisation de données dentaires Download PDF

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Publication number
WO2014069934A1
WO2014069934A1 PCT/KR2013/009843 KR2013009843W WO2014069934A1 WO 2014069934 A1 WO2014069934 A1 WO 2014069934A1 KR 2013009843 W KR2013009843 W KR 2013009843W WO 2014069934 A1 WO2014069934 A1 WO 2014069934A1
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WO
WIPO (PCT)
Prior art keywords
tooth
module
data
boundary line
digital
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Application number
PCT/KR2013/009843
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English (en)
Korean (ko)
Inventor
김희범
Original Assignee
주식회사 리얼오쏘
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Application filed by 주식회사 리얼오쏘 filed Critical 주식회사 리얼오쏘
Publication of WO2014069934A1 publication Critical patent/WO2014069934A1/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
    • A61C13/34—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects

Definitions

  • the present invention relates to a tooth data coloring apparatus and a method thereof, and more particularly, 3D scan a tooth model of a color similar to the actual tooth by specifying the color of the tooth and the gingiva of the 3D scanned digital tooth data for the patient's teeth.
  • the present invention relates to a printable tooth data coloring apparatus and a method thereof.
  • a tooth model that is the same as the structure and shape of the gingiva in the oral cavity in order to preserve the dental state of the patient or to manufacture a dental device such as orthodontic device, prosthetic device, implant.
  • the digital dental data is generated using a 3D scanner and the digital dental data is stored in a memory or a database instead of the existing plaster model, thereby ensuring the ease of storage.
  • a tooth model manufacturing method using a 3D scanner and a 3D printing machine that can easily obtain a desired number of tooth models using a dimensional printer has been introduced and used.
  • the conventional tooth model manufacturing method using the 3D scanner and the 3D printing machine has a problem that it is difficult to secure the same as the actual teeth because the teeth and the gingiva are recognized and printed in the same color.
  • the boundary between the tooth and the gingiva is unclear and the accuracy is lowered, and there is a problem that the understanding of the patient to wear the dental device is poor.
  • an object of the present invention is to designate a tooth model having a color similar to that of a real tooth by specifying the color of the tooth and the gingiva of the 3D scanned digital tooth data with respect to the patient's tooth.
  • the tooth data coloring apparatus comprises a boundary line setting module for setting a tooth boundary line between a tooth and a gingival area from digital tooth data of a 3D scanned patient and a tooth according to the set boundary line.
  • the watch is characterized by including a color assignment module for designating a different color area.
  • a preprocessing module for aligning the digital dental data of the 3D scanned patient, setting the dimension and axis information, and flatly filling the lower portion to enable 3D printing when the lower portion of the digital tooth data is not filled. It features.
  • the boundary line setting module may further include a first module for converting an outline of the digital tooth data into a triangular mesh and a second module for specifying a vertical boundary line of a Z-axis cross section of the digital tooth data converted into the triangular mesh. It characterized in that it comprises a third module for designating the boundary line between the teeth and gingiva by connecting the tooth boundary point of the teeth and gingiva among the boundary lines.
  • the second module generates a Z-axis plane perpendicular to the X and Y axes, and converts the digital tooth data converted into the triangular mesh to generate a contact point between the Z-axis plane and the actual digital tooth data as a plurality of samples. And obtaining a vertical boundary line.
  • the third module extracts a recessed portion having the greatest boundary change for each of the plurality of sampled vertical boundary lines as a tooth boundary point, and connects the extracted consecutive tooth boundary points to separate teeth and gingiva. And generating a line.
  • the third module divides the triangular mesh of the portion where the tooth boundary line passes and divides the triangular mesh into small triangle meshes and allocates the tooth and gingival areas to generate tooth boundary lines.
  • the color designation module to specify a different color by dividing the tooth region and the gingival area based on the tooth boundary line, the tooth region is assigned to the same or similar color to the actual tooth, the gingival area and the actual gingiva It is characterized by the same or similar color.
  • the color assignment module is characterized in that it is assigned to a different color for each tooth.
  • teeth that need to be corrected and the rest of the teeth can be designated in different colors, and the accuracy of dental devices can be increased by focusing the teeth that need to be visually corrected.
  • the tooth data coloring apparatus can 3D print a tooth model having a color similar to the actual tooth by specifying the color of the teeth and the gingiva of the 3D scanned digital tooth data with respect to the patient's teeth.
  • the excellent effect is to create the same tooth model as the actual tooth.
  • FIG. 1 is a system configuration diagram schematically showing a tooth data coloring apparatus according to a preferred embodiment of the present invention.
  • FIG. 2 shows the case where the lower end of the scanned digital tooth data is filled (Model 1) and when it is not filled (Model 2).
  • FIG. 3 illustrates a cross-sectional state of scanned digital tooth data.
  • FIG. 5 illustrates digital tooth data converted into a triangular mesh with axis information.
  • FIG. 6 illustrates obtaining a vertical boundary line from digital tooth data converted into a triangular mesh.
  • FIG. 7 illustrates forming a tooth boundary line by connecting tooth boundary points of a vertical boundary line of digital tooth data.
  • FIG. 8 is an enlarged perspective view of a tooth boundary line.
  • FIG. 9 is a schematic diagram for generating a tooth boundary line according to a preferred embodiment of the present invention.
  • Figure 10 shows that the color of the teeth and gingiva according to a preferred embodiment of the present invention is designated.
  • Figure 11 schematically illustrates a process of separating the teeth and gingiva according to a preferred embodiment of the present invention.
  • the tooth data coloring apparatus is a boundary line setting module for setting a tooth boundary line between a tooth and a gingival area from digital tooth data of a 3D scanned patient and designates the tooth and the gingival area in different colors according to the set boundary line. It characterized in that it comprises a color designation module.
  • FIG. 1 is a system configuration diagram schematically showing a tooth data coloring apparatus according to a preferred embodiment of the present invention.
  • the tooth data coloring apparatus includes a preprocessing module 10 for aligning and preprocessing digital tooth data of a patient scanned through a 3D scanner and a boundary between a tooth and a gingival from the preprocessed digital tooth data. It may be configured to include a boundary line setting module 20 for setting a line and a color designation module 30 for assigning different colors to teeth and gingiva according to the set boundary line.
  • the tooth data coloring device When the interface between the teeth and the gingiva is designated by the tooth data coloring device, colors are printed on the teeth and the gingival area through a 3D printing machine, thereby making the same tooth model as the actual teeth.
  • the preprocessing module 10 is responsible for aligning the digital tooth data of the 3D scanned patient, setting the dimension and axis information, and filling the lower part to enable 3D printing when the lower part of the digital tooth data is not filled. do.
  • FIG. 2 illustrates the case where the lower end of the digital tooth data is filled (model 1) and the case where it is not filled (model 2).
  • the appearance of the scanned digital tooth data as shown in FIG. 2A is the same, but the invisible lower end portion may be scanned in a filled state but scanned in an unfilled state.
  • the preprocessing module 10 performs a process of filling the lower end flat so that the cross section of the digital tooth data is blocked when the lower end of the digital tooth data is not filled.
  • the boundary line setting module 20 designates a first module 210 for converting the outline of the preprocessed digital tooth data into a triangle mesh and a vertical boundary line of the Z axis cross section of the digital tooth data converted into the triangle mesh.
  • the second module 220 may be configured to include a third module 230 connecting the tooth boundary points of the teeth and the gingiva to designate the boundary lines of the teeth and the gingiva.
  • the first module 210 converts the outline of the scanned digital dental data into a triangular mesh model and outputs the triangle mesh model.
  • the contour line is converted into a triangular mesh in order to accurately represent the curvature of the scanned contour line.
  • the second module 220 generates a Z axis plane perpendicular to the X and Y axes of the digital tooth data converted into the triangular mesh as shown in FIG. 5 to draw a contact point between the Z axis plane and the actual digital tooth data. Implement to obtain vertical boundary line.
  • the obtained cross section is formed of a hollow shape inside the tooth outline, so that the Z-axis plane and the actual digital tooth data are separated.
  • a vertical boundary line formed as a contact can be obtained.
  • the second module 220 acquires a continuous vertical boundary line sampled with respect to the appearance of the digital dental data, and extracts the tooth boundary point of the continuous vertical boundary line.
  • the third module 230 extracts the boundary line between the teeth and the gingiva by connecting the continuous tooth boundary points.
  • the tooth boundary line which is the boundary line between the teeth and the gingiva can be extracted.
  • the tooth boundary line may also act as a tooth separation line that separates the teeth and the gingiva.
  • FIG. 8 is an enlarged perspective view of a tooth boundary line.
  • the third module 230 generates a tooth boundary line by dividing the triangular mesh of a portion through which the tooth boundary line passes to divide the triangular mesh of a small unit in order to increase the accuracy of the division of the tooth and the gingival area. can do.
  • FIG. 9 is a schematic diagram for generating a tooth boundary line according to a preferred embodiment of the present invention.
  • the triangular mesh passing through the tooth boundary line is subdivided into a mesh including at least one triangular mesh as shown in (d), it can be divided into a tooth and a gingival area.
  • the 12 triangular meshes passing through the tooth boundary line are subdivided, 12 meshes are added, and the digital tooth data is changed into a structure having 42 triangular meshes, and the 42 triangular meshes can be accurately divided into teeth and gingival areas. have.
  • the color designation module 30 specifies a different color by dividing the tooth region and the gingival region based on the tooth boundary line. do.
  • the color designation module 30 may select the tooth region to designate the same or similar color as the actual tooth, and select the gingival region to designate the same or similar color to the actual gingiva.
  • output to the 3D printing machine can generate a tooth model of the same color pattern as the actual tooth.
  • the tooth data coloring apparatus is a tooth that is the boundary of the teeth and gingiva in all scanning data including the conventional scanning data By accurately extracting the boundary line, it is possible to distinguish between the tooth area and the gingival area.
  • the color designation module 30 may designate the entire tooth in the same or similar color as the tooth as shown in FIG. 10, but may designate a different color for each individual tooth.
  • only the teeth that need to be corrected can be designated in different colors to distinguish between the teeth that need to be corrected and the teeth that are not needed, thereby improving patient understanding through visual contrast of the teeth.
  • Figure 11 schematically illustrates a process of separating the teeth and gingiva according to a preferred embodiment of the present invention.
  • FIG. 11A illustrates a process of separating teeth and gingiva for a unit tooth
  • FIG. 11B illustrates a process of separating teeth and gingiva for an entire tooth.
  • the tooth boundary line according to the present invention may serve to separate not only the teeth and the gingival area, but also to separate the individual teeth from the gingival as well as the 3D printing by dividing the color of the actual tooth and the color of the gingival.
  • a tooth boundary line is a boundary line of a tooth and a lung curve surrounding the tooth boundary line
  • individual teeth may be separated from the gingiva based on the tooth boundary line.
  • the separation of the individual teeth as described above may be utilized as a basis for moving and rotating the teeth during orthodontic treatment.
  • the dental data coloring apparatus precisely separates the boundary between the teeth and the gingiva, so that the tooth region is output in the color of the actual tooth, and the gingival area is output in the color of the actual gingiva, so that the same model of the tooth can be generated. It can be seen that it is very beneficial for dental treatment because it can increase the accuracy of manufacturing the device for the patient, and improve the understanding of the patient.
  • the present invention relates to a tooth data coloring apparatus and a method thereof, and more particularly, 3D scan a tooth model of a color similar to the actual tooth by specifying the color of the tooth and the gingiva of the 3D scanned digital tooth data for the patient's teeth.
  • a printable tooth data coloring device and a method thereof which is applicable to the field of orthodontics for straightening teeth.

Abstract

La présente invention concerne un dispositif de colorisation de données dentaires et un procédé associé, et plus spécifiquement, un dispositif de colorisation de données dentaires capable d'imprimer en 3D un modèle dentaire ayant une couleur qui est similaire à celle des dents réelles en attribuant séparément les couleurs des dents et de la gencive dans des données dentaires numériques obtenues par balayage en 3D des dents d'un patient, et un procédé associé.
PCT/KR2013/009843 2012-11-02 2013-11-01 Dispositif de colorisation de données dentaires WO2014069934A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0123356 2012-11-02
KR1020120123356A KR101295610B1 (ko) 2012-11-02 2012-11-02 치아 데이터 컬러링 장치

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WO2014069934A1 true WO2014069934A1 (fr) 2014-05-08

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WO (1) WO2014069934A1 (fr)

Cited By (1)

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US20220079718A1 (en) * 2016-05-30 2022-03-17 3Shape A/S Predicting the development of a dental condition

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KR101506476B1 (ko) 2014-11-03 2015-03-27 이진균 교정기 제조용 치아 데이터 생성 장치 및 이를 이용하여 투명 교정기를 제작하는 방법
CN105676777B (zh) * 2016-01-15 2018-05-25 广东工业大学 面向三角网格曲面的双向插值数控代码生成方法及其应用
CN105700469B (zh) * 2016-01-15 2018-11-02 广东工业大学 面向三角网格曲面数控加工的刀位点求取方法及其应用
CN109431632B (zh) * 2018-09-30 2020-09-11 西安增材制造国家研究院有限公司 一种模拟牙龈变形的方法
KR102425717B1 (ko) * 2019-12-30 2022-07-27 주식회사 메디트 마진라인 설정 장치 및 방법
KR102632338B1 (ko) * 2020-11-05 2024-02-01 주식회사 메디트 데이터 처리 방법
US20230290093A1 (en) * 2020-11-05 2023-09-14 Medit Corp. Data processing method
KR102591976B1 (ko) * 2021-06-24 2023-10-23 주식회사 메디트 구강에 대한 마진 라인 정보를 제공하는 방법 및 그를 수행하는 전자 장치
WO2023003399A1 (fr) * 2021-07-21 2023-01-26 주식회사 메디트 Procédé et dispositif de traitement de modèle tridimensionnel de cavité buccale
KR102631922B1 (ko) * 2021-07-21 2024-02-01 주식회사 메디트 삼차원 구강 모델을 처리하는 방법 및 장치
KR102537013B1 (ko) * 2023-02-17 2023-05-30 주식회사 올소비트 수치로 측정한 임상학적 치열궁을 바탕으로 기성품 브라켓 부착용 가이드를 제조하는 방법과 그로 인하여 제조된 가이드
KR102537012B1 (ko) * 2023-02-17 2023-05-30 주식회사 올소비트 치아교정을 위한 임상학적 치열궁을 수치적으로 측정하여 결정하는 방법
KR102537014B1 (ko) * 2023-02-17 2023-05-30 주식회사 올소비트 수치로 측정한 임상학적 치열궁을 바탕으로 가이드 일체형 브라켓을 제조하는 방법과 그로 인하여 제조된 가이드 일체형 브라켓

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US7063532B1 (en) * 1997-06-20 2006-06-20 Align Technology, Inc. Subdividing a digital dentition model
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Publication number Priority date Publication date Assignee Title
US20220079718A1 (en) * 2016-05-30 2022-03-17 3Shape A/S Predicting the development of a dental condition
US11918438B2 (en) * 2016-05-30 2024-03-05 3Shape A/S Predicting the development of a dental condition

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