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A data assimilation-based prediction system on tooth movement for supporting orthodontic treatment

Research Project

Project/Area Number 18K11339
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60100:Computational science-related
Research InstitutionKogakuin University

Principal Investigator

Suga Kazuhiro  工学院大学, 工学部, 准教授 (30408992)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
KeywordsOrthodontics / Inverse problem / Finite element method / NiTi wire / Data assimilation / 歯科矯正 / データ同化 / 逆問題 / 歯科矯正治療支援 / 歯の移動予測 / 矯正力評価 / 光学印象
Outline of Final Research Achievements

This research developed a mechanics based a tooth movement prediction system to realize safe and effective orthodontic treatment. Firstly, a simple mechanical model was developed to predict tooth movement. Combining the simple mechanical model with an inverse analysis, we proposed a method to predict tooth movement under orthodontic forces. Furthermore, a finite element model was proposed to evaluate the orthodontic force quantitatively by the orthodontic wire .

Academic Significance and Societal Importance of the Research Achievements

健康的な歯並びの維持・実現が,心身の健康に繋がる.健康的な歯並びを維持・実現する歯科矯正治療は,これまで医師の経験に基づいて治療方針が決定されてきた.そのため,計画通りに治療が進まない,重大な障害が発生する事例も報告されている.本研究成果は,力学的根拠に基づいて歯の移動過程を予測を実現することで,安全かつ効果的な歯科矯正治療の実現に貢献するものである.さらには,人類の心身の健康に貢献するものである.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (26 results)

All 2021 2019 2018

All Journal Article (2 results) Presentation (23 results) (of which Int'l Joint Research: 13 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] 数値解析の仕組みと解析のポイント2021

    • Author(s)
      須賀一博
    • Journal Title

      日本歯科理工学会誌

      Volume: 40 Pages: 1-4

    • Related Report
      2020 Research-status Report
  • [Journal Article] 小型力覚センサーを用いた矯正力シミュレーション2021

    • Author(s)
      宇尾基弘,頼威任,簡野瑞誠,小野卓史,竹村裕,須賀一博,曽我公平
    • Journal Title

      日本歯科理工学会誌

      Volume: 40 Pages: 29-32

    • Related Report
      2020 Research-status Report
  • [Presentation] Verification of Dentition Shape Extraction Method2021

    • Author(s)
      Yutaro Iso, Kazuhiro Suga
    • Organizer
      The 20th International Symposium on Advanced Technology (ISAT-20)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantitative Evaluation by Orthodontic Moment Measurement Device -Comparative study of the two types of wire during orthodontic treatment-2021

    • Author(s)
      Mark Kondo, Kohei Soga, Kazuhiro Suga, Naoki Mikami, Wei-Jen Lai, Sunmin Kim, Ikuo Yonemitsu, Zuisei Kanno, Motohiro Uo and Hiroshi Takemura
    • Organizer
      6th International Conference on Intelligent Informatics and BioMedical Sciences(ICIIBMS 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Our Applications of Numerical Simulation and Machine Learning to Orthodontic Treatment2021

    • Author(s)
      Kazuhiro Suga
    • Organizer
      Virtual Conference on Computational and Experimental Mechanics (VCCEM ’21)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reconstruction of Intraoral 3D Shape Using Machine Learning2021

    • Author(s)
      Yutaro Iso, Kazuhiro Suga
    • Organizer
      Virtual Conference on Computational and Experimental Mechanics (VCCEM ’21)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 歯の初期動揺予測逆問題における予測精度向上2021

    • Author(s)
      須賀一博,桂彰吾
    • Organizer
      第26回計算工学講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 自己教師あり学習によるCBCT像のノイズ低減効果の評価と学習効率化2021

    • Author(s)
      須賀一博,大里竜介
    • Organizer
      第26回計算工学講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A Computational Support Platform to Orthodontic Treatment for Oral Health2019

    • Author(s)
      Kazuhiro Suga
    • Organizer
      Mechanical Enginnering Symposium 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Computational Design of Orthodontic V-Bend Wire System based on Force and Moment during Tooth Movement2019

    • Author(s)
      Kazuhiro Suga
    • Organizer
      Mechanical Enngineering Multiconference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Tooth Segmentations from CBCT based on Image Processing with Tooth Smoothness and based on Deep Learning2019

    • Author(s)
      Kazuhiro Suga, Akira Shinohara
    • Organizer
      ISAT 18, The 18th International Symposium on Advanced Technology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Numerical Study on Intravascular Pressure Estimation with Convolutional Neural Network2019

    • Author(s)
      Hikaru Kobayashi, Kazuhiro Suga
    • Organizer
      ISAT 18, The 18th International Symposium on Advanced Technology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Root shape prediction from crown shape using machine learning (Poster)2019

    • Author(s)
      Yutaro Iso, Kazuhiro Suga
    • Organizer
      ISAT 18, The 18th International Symposium on Advanced Technology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Support of Orthodontic Treatment by Computational Mechanics2019

    • Author(s)
      Kazuhiro Suga
    • Organizer
      APCOM 2019, The Asian Pacific Congress on Computational Mechanics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Orthodontic Force and Moment Sensing Device: Influence of Deflection of Wire and Tooth’s Orientation2019

    • Author(s)
      Kunio Shimoda, Satoki Tsuichihara, Hiroshi Takemura, Kohei Soga, Kazuhiro Suga, Wei-Jen Lai, Sunmin Kim, Zuisei Kanno, and Motohiro Uo
    • Organizer
      2019 IEEE International Conference on Systems, Man, and Cybernetics (IEEE SMC 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 深層学習を用いたCBCT像からの歯領域自動抽出2019

    • Author(s)
      佐々木北都,須賀一博
    • Organizer
      日本機械学会 関東学生会第57回学生員卒業研究発表講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 歯の初期動揺予測逆問題における解探索手法の検討2019

    • Author(s)
      永吉祐介,須賀一博
    • Organizer
      日本機械学会 関東学生会第57回学生員卒業研究発表講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 携帯撮影機器を用いた口腔内3次元形状計測のための撮影条件の検討2019

    • Author(s)
      川尻圭佑,須賀一博
    • Organizer
      日本機械学会 関東学生会第57回学生員卒業研究発表講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 素人こそ医工連携2019

    • Author(s)
      須賀一博
    • Organizer
      第10回バイオメディカルインターフェースワークショップ
    • Related Report
      2018 Research-status Report
  • [Presentation] Development of Supporting System for Safety and Efficient Orthodontic Treatment2018

    • Author(s)
      Kazuhiro Suga
    • Organizer
      The 17th International Symposium on Advanced Technology (ISAT-17)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Computational Methods for Supporting Patient-Specific Treatment on Orthodontics2018

    • Author(s)
      Kazuhiro Suga
    • Organizer
      WCCM 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] データ同化を見据えた簡便な歯の初期動揺予測手法2018

    • Author(s)
      須賀一博
    • Organizer
      日本機械学会 第31回計算力学講演会(CMD2018)
    • Related Report
      2018 Research-status Report
  • [Presentation] 深層学習を用いたCT像からの歯の三次元形状再構成手法の検討2018

    • Author(s)
      須賀一博
    • Organizer
      日本機械学会 第31回計算力学講演会(CMD2018)
    • Related Report
      2018 Research-status Report
  • [Presentation] 歯科矯正治療支援のための効率的な歯の初期動揺予測モデルの有効性評価2018

    • Author(s)
      須賀一博
    • Organizer
      第23回計算工学講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 歯の動揺に伴い超弾性矯正ワイヤーが歯に及ぼす回転モーメントの経時変化2018

    • Author(s)
      須賀一博,西濱悠
    • Organizer
      第23回計算工学講演会
    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 歯の位置の分析装置、歯の領域抽出モデル生成方法、歯の位置の分析方法 、プログラム、および記録媒体2019

    • Inventor(s)
      小林 匡治,石田 雄之,須賀 一博 他3名
    • Industrial Property Rights Holder
      小林 匡治,石田 雄之,須賀 一博 他3名
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2019
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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