WO2016003256A1 - Méthode permettant de mettre en oeuvre une procédure virtuelle destinée à une procédure orthodontique - Google Patents

Méthode permettant de mettre en oeuvre une procédure virtuelle destinée à une procédure orthodontique Download PDF

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Publication number
WO2016003256A1
WO2016003256A1 PCT/KR2015/006974 KR2015006974W WO2016003256A1 WO 2016003256 A1 WO2016003256 A1 WO 2016003256A1 KR 2015006974 W KR2015006974 W KR 2015006974W WO 2016003256 A1 WO2016003256 A1 WO 2016003256A1
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Prior art keywords
tooth
view
simulation
model
procedure
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Ceased
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PCT/KR2015/006974
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English (en)
Korean (ko)
Inventor
지헌주
임용현
조헌제
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Ins Bio Co Ltd
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Ins Bio Co Ltd
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    • 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
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • the present invention relates to a method of performing a simulation for orthodontic treatment, and more particularly, based on various guides for the 3D teeth model and orthodontic simulation performed by minimizing the actual data and the error rate, Compared to the existing three-dimensional operation UI (User interface), which is difficult, it provides a subdivided UI with two-dimensional operation so that the user can operate the precision more conveniently and executes tooth movement similar to the actual correction process.
  • the present invention relates to a simulation method for orthodontic treatment that reflects and provides a deformation of the tooth arrangement structure in real time.
  • the three-dimensional manipulation method allows three-dimensional manipulation on a two-dimensional screen viewed by a computer monitor, and moves with a sense of space from the user's point of view, or moves too many operations at once to precisely desire There was a problem that it is difficult to operate.
  • the tooth model used in the existing simulation procedure can be divided into two major categories: the tooth model generated by dividing the individual teeth after generating the 3D CAD model using the plaster model made from the patient's mouth For example, a tooth model generated by segmenting the tooth parts in each tomography image by using the head CT image data (DICOM series) generated by CT, etc., is collected.
  • DICOM series head CT image data
  • the present invention was devised to solve such a problem, and an object of the present invention is to provide a simulation method that enables precise manipulation by simple manipulation compared to the conventional method by using a tooth model that minimizes actual data and error rate. .
  • various types of guides are provided to facilitate accurate simulation and user convenience, and to perform dental simulations in dental procedures, oral internal factors such as changes in teeth movement and jaw bones that change according to the movement of the teeth of the patient. It is an object of the present invention to provide a simulation method that can confirm the analysis information on the field in real time.
  • a simulation method for orthodontic treatment comprising: a first step of combining at least one 3D tooth crown model extracted from a 3D oral surface model and at least one 3D tooth volume model extracted from a 3D head image to generate at least one 3D tooth model ;
  • a guide that can be applied to the generated 3D tooth models is provided on one side of the screen as a 3D view, and the screen except for one side is divided into three sides and displayed as three fixed views, and the three fixed views.
  • the guide provides a reference for simulation or simulation, and a 3D oral surface model, a clipped 3D head image or a 3D diagnosis and analysis
  • a 3D view provided on one side of the screen during the second step the guide provides a reference for simulation or simulation, and a 3D oral surface model, a clipped 3D head image or a 3D diagnosis and analysis
  • One or more of the data can be selected and used together.
  • the teeth displayed in the other two views and the 3D tooth model displayed in the 3D view are simultaneously operated in the fixed view selected from the three views. Can be applied to move.
  • the 3D view which is one of the views provided as the 3D view, front view, side view, or mastication view in which the tooth is selected and manipulated by the user during the second step, is a positional relationship between the selected tooth and the surrounding tooth and the position of the guide Represented as a 3D view providing relationship information;
  • the other three front views, side views, or mastication views other than the 3D view may be provided by reconstructing a 3D transform by combining two-dimensional transforms performed in the corresponding fixed view.
  • a simulation method for orthodontic treatment wherein a tooth selected by a user is changed in real time according to the transition state of the marks or landmarks displayed on the 3D head image during the tooth movement simulation.
  • the changed marker point or the measured values using the same are reflected on the 3D view screen to provide a change in the anatomy of the patient in real time.
  • the present invention provides a simulation method to enable precise operation by a simple operation compared to the prior art, to provide a guide of various forms to facilitate accurate simulation and user convenience, and to simulate the procedure in the dental procedure It is effective to provide a simulation method that can confirm in real time the analysis information on the oral internal factors, such as the amount of tooth movement change and jaw bone that changes according to the movement of the patient's teeth.
  • Figure 1 is a 3D used in the simulation procedure, combining the 3D tooth crown model, which is an individual tooth portion extracted from the 3D oral surface model, and the 3D tooth volume model including the root portion of the tooth extracted from the 3D head image Drawing showing tooth model
  • FIG. 2 is a diagram illustrating a process of performing a simulation simulation by expressing a simulation user interface in three views including a 3D view and a front, side, and mastication surface.
  • 3 is a view showing that the simulation is performed using the 3D oral surface model as a guide
  • FIG. 4 is a diagram illustrating a simulation procedure using a clipped 3D head image as a guide.
  • FIG. 5 shows an example of the fact that the marker point displayed on the 3D head image or the measured values using the same are changed in real time according to the changed tooth position, and the movement distance, the rotation direction and the rotation angle of the tooth can be checked during the tooth movement simulation procedure.
  • FIG. 1 includes a root portion of a tooth extracted from a 3D tooth crown model 10 and a 3D head image, which are individual tooth parts identified by the naked eye extracted from a 3D stone model.
  • 3D tooth model used in the simulation combined with a 3D tooth volume model (3D Tooth Volume Model) is a view showing a 3D tooth model (30, 3D Tooth Model).
  • the 3D oral surface model is scanned by using a 3D scanner or by inserting an intra-oral 3D scanner into the gypsum model obtained from the patient's mouth.
  • CT computed tomography
  • MRI Magnetic resonance imaging
  • 3D surface landmarks are displayed on 3D stone models obtained by various methods to prepare data for 3D landmark-transform based registration.
  • marker points may be displayed on both anterior teeth, central incisors, and molar teeth, respectively.
  • tofu tomography image data can be obtained from equipment such as CT, MRI, Ultrasonic diagnostics, etc. Tomography).
  • a 3D head image having a volume is generated by combining the acquired tomographic image data (DICOMseries), and 3D to correspond to the mark point displayed on the 3D oral surface model (3D Stone Model).
  • 3D head landmarks are marked (3D Volume Landmarks) to perform 3D marker point-based registration (coordinate alignment using 3D marker points, 3D landmark-transform).
  • 3D Stone Model is matched with 3D Head Image. That is, registration is performed by rotating, translating, and the like based on the mark point.
  • a 3D oral surface model (3D Stone Model) matched to a 3D head image can be obtained.
  • 3D Tooth-Crown carving and Create Tooth-Crown surface are extracted from the 3D Tooth Crown Model, which is matched to the 3D Head Image.
  • the 3D tooth volume model (20, 3D Tooth Volume Model) including the tooth root from the 3D head image (Each Tooth Region Volume Clipping and Create Tooth Volumes)
  • the 3D tooth crown model (10 , 3D Tooth Crown Model) and 3D tooth volume model (20, 3D Tooth Volume Model) by combining to create a 3D tooth model (30, 3D Tooth Model).
  • the coordinate system is shared (Coordinates Mapping, Shared local Coordinates) so that the 3D tooth crown model (10, 3D Tooth Crown Model) and the 3D tooth volume model (20, 3D Tooth Volume Model) are synchronized.
  • 3D tooth models (30, 3D Tooth Model) such as 1.
  • 3D tooth models (30, 3D Tooth Model) generated through the above-described process can be used in the simulation for the orthodontic simulation.
  • FIG. 2 is a view illustrating a process of performing a simulation simulation by expressing a virtual set-up user interface as a 3D view and three operation views including a front, side, and mastication surface.
  • FIG. 3 is a diagram illustrating a simulation process using a 3D stone surface model as a guide.
  • 4 is a diagram illustrating a simulation procedure using a clipped 3D head image as a guide.
  • FIG. 5 is a marker point or measurement values displayed on a 3D head image during a tooth movement simulation in real time according to a changed tooth position, the distance of a tooth movement 50, It is a figure which shows the example of that a rotation direction, a rotation angle, etc. can be confirmed.
  • the left side of the screen is a view in which a combination of the above-described 3D tooth models 30 and 3D tooth models are visualized, and is provided as a 3D view.
  • the tooth 40 selected by the user is a front view on the right side. It is provided as three fixed views consisting of a frontal view, a lateral view and an occlusal view.
  • the tooth structure arrangement is composed of only a combination of 3D tooth models (30, 3D Tooth Model) without a guide, there is a disadvantage in that there is no standard in orthodontics, only the user's clinical experience should be used in performing the simulation. In addition, since the user performs a calibration simulation by setting arbitrary criteria, there is a possibility that the actual calibration and the error are large.
  • the guide may be a 3D oral surface model (3D Stone Model), as shown in FIG. 3, or a 3D head image (3D Head Image) clipped as shown in FIG. 4, may be used.
  • 3D oral surface model 3D Stone Model
  • 3D Head Image 3D Head Image
  • applications are possible, such as real-time visualization of changes in measurements used in 3D diagnosis and 3D analysis as the teeth move between simulations.
  • the teeth 40 to be selected by the user and changed through the simulation are provided as three views on the right side of the screen.
  • the three fields of view are provided as a frontal view, a lateral view, and an occlusal view, and the resulting two-dimensional motion rotation transformation for each view is applied to the currently selected tooth model. Since the three-dimensional transformation is performed through a combination of two-dimensional transformations, it is possible to predict the appearance of the tooth arrangement after the tooth structure is deformed by the correction, and the distance and rotation direction and the movement (50) as shown in FIG. Rotation angle, etc. are displayed numerically on the screen. In other words, the teeth selected by the user may be displayed on the screen by changing the markers or measurement values displayed on the 3D head image in real time according to the teeth movement during tooth movement simulation. It is visualized to provide information on changes in the anatomical state of the patient.
  • the simulation procedure can only be performed depending on the doctor's clinical experience.
  • the simulation procedure is provided by providing a guide to the simulation procedure.
  • UI user interface

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

Abstract

La présente invention concerne une méthode permettant de mettre en oeuvre une procédure virtuelle destinée à une procédure orthodontique, et plus spécifiquement une méthode selon laquelle on crée sur la base de données réelles, un modèle dentaire en 3D en réduisant au minimum un taux d'erreurs, et selon laquelle on utilise différents éléments de guidage pour des procédures virtuelles destinées à des procédures orthodontiques ainsi qu'une interface utilisateur (UI) subdivisée en manipulations en deux dimensions par opposition à une interface utilisateur (UI) classique qui opère en trois dimensions et ne facilite pas des manipulations précises, l'interface utilisateur selon l'invention permettant à un utilisateur d'effectuer des manipulations précises de manière plus commode et d'obtenir un mouvement des dents similaire au procédé de correction réelle, reflétant ainsi, en temps réel, la transformation de la structure d'agencement des dents provoquée par le travail orthodontique. La présente invention concerne une méthode permettant de mettre en oeuvre une procédure virtuelle qui utilise des données réelles et un modèle dentaire réduisant à un minimum un taux d'erreurs, autorisant ainsi des manipulations précises au moyen d'opérations simples par rapport à des méthodes classiques, et favorisant une procédure virtuelle précise et facile à utiliser grâce à divers types d'éléments de guidage. L'invention permet de réaliser une procédure virtuelle pour des procédures dentaires et d'identifier, en temps réel, des informations d'analyse relatives à des éléments situés à l'intérieur de la cavité buccale, tels que l'os maxillaire, ainsi que les modifications des mouvements des dents qui varient en raison du mouvement des dents d'un patient.
PCT/KR2015/006974 2014-07-04 2015-07-06 Méthode permettant de mettre en oeuvre une procédure virtuelle destinée à une procédure orthodontique Ceased WO2016003256A1 (fr)

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KR1020140083999A KR20160004863A (ko) 2014-07-04 2014-07-04 치아 교정 시술을 위한 모의시술 방법
KR10-2014-0083999 2014-07-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107229826A (zh) * 2017-05-23 2017-10-03 深圳市菲森科技有限公司 一种用于牙齿矫正的正畸影像管理装置和方法
WO2024215011A1 (fr) * 2023-04-10 2024-10-17 고려대학교 산학협력단 Système d'assistance orthodontique à base de ra et procédé de fonctionnement associé

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102413697B1 (ko) 2020-12-18 2022-06-28 오스템임플란트 주식회사 치아 배열용 그래픽 사용자 인터페이스를 이용한 디지털 치아 배열 방법 및 그 장치
KR102764428B1 (ko) * 2021-10-15 2025-02-07 오스템임플란트 주식회사 교정 진단에 이용되는 화면을 디스플레이하는 방법, 디바이스 및 그 기록매체
KR102747713B1 (ko) * 2022-03-16 2024-12-31 오스템임플란트 주식회사 치아 교정 시뮬레이션 방법, 그리고 이를 구현하기 위한 장치

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KR101138354B1 (ko) * 2011-06-16 2012-04-26 김태원 투명 교정기 제조용 교정 치아 데이터 제공 시스템
KR20130132038A (ko) * 2012-05-25 2013-12-04 이화여자대학교 산학협력단 맞춤형 치아 교정 시스템 및 그의 치아 교정 방법
KR20140015239A (ko) * 2010-06-29 2014-02-06 쓰리세이프 에이/에스 2ｄ 영상 장치

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KR20100092753A (ko) * 2009-02-13 2010-08-23 주식회사 오라픽스 악교정시 수술용 웨이퍼 제작방법
KR20140015239A (ko) * 2010-06-29 2014-02-06 쓰리세이프 에이/에스 2ｄ 영상 장치
KR20120036099A (ko) * 2010-10-07 2012-04-17 조선대학교산학협력단 의료용 인체 모형 및 수술 가이드 획득방법 및 그 방법을 수행하는 컴퓨터 프로그램을 기록한 기록매체, 그리고 의료용 인체 모형 및 수술 가이드 획득방법에 의해 획득된 의료용 인체 모형
KR101138354B1 (ko) * 2011-06-16 2012-04-26 김태원 투명 교정기 제조용 교정 치아 데이터 제공 시스템
KR20130132038A (ko) * 2012-05-25 2013-12-04 이화여자대학교 산학협력단 맞춤형 치아 교정 시스템 및 그의 치아 교정 방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107229826A (zh) * 2017-05-23 2017-10-03 深圳市菲森科技有限公司 一种用于牙齿矫正的正畸影像管理装置和方法
WO2024215011A1 (fr) * 2023-04-10 2024-10-17 고려대학교 산학협력단 Système d'assistance orthodontique à base de ra et procédé de fonctionnement associé
KR20240151296A (ko) * 2023-04-10 2024-10-18 고려대학교 산학협력단 Ar 기반의 치아 교정 보조 시스템 및 그 운용방법
KR102839446B1 (ko) 2023-04-10 2025-07-29 고려대학교 산학협력단 Ar 기반의 치아 교정 보조 시스템 및 그 운용방법

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