Development of a high accuracy analytical system for medical treatment of malfunction of mandibular movement

• Project/Area Number: 21300187
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Medical systems
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: INOU Norio 東京工業大学, 大学院・理工学研究科, 教授 (70126308)
• Co-Investigator(Kenkyū-buntansha): KOSEKI Michihiko 信州大学, 繊維学部, 准教授 (50334503) ; MAKI Koutarou 昭和大学, 歯学部, 教授 (80219295)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2010: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2009: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
• Keywords: 顎運動 / 運動機能 / 咬合状態 / 咀嚼 / 運動分析 / 干渉検出 / 顎運動機能 / 個体別モデル / 表示システム / 咬合治療 / 個体別モデリング / 咬合疾患 / 医療診断システム

Research Abstract

The human mandible produces variety of movements because the mandibular joints are able to move to both rotational and translational directions. To make a proper diagnosis of the malfunction of occlusion, it needs to observe exact mandibular movements. This study aims to develop a 3-D mandibular display system that provides useful biomechanical information for medical diagnosis of the malfunction of occlusion.
1. The display system was successfully to decrease the measurement error within 0. 1mm optimizing allocation of video cameras and selecting a proper frame rate of the cameras.
2. We developed a method to produce a precise mandibular model for each patient by use of the CT data of gypsum mold of teeth. Contact states and detection of interference between up and down teeth were demonstrated.
3. It was clarified that masticatory muscles cooperatively worked in mastication by analyzing time change of muscular lengths of masticatory muscles.
4. We proposed a method to synthesize chewing motion from three basic motion modes. The method provides a unified estimation for malfunction of mandibular movement.

Research Products

• [Journal Article] Synthesis of Mandibular Movements from Basic Motion Modes Considering Dynamic Profile of Masticatory Muscles (2012)
  • Author(s): Kiwamu SAITOU, Norio INOU, Hitoshi KIMURA, Taisei FUJIKAWA, Naoki OGAWA and Koutarou MAKI
  • Journal Title: Journal of Biomechanical Science and Engineering Volume: Vol.7, No.22 Pages: 223-236
  • NAID: 130002066905
  • Peer Reviewed
• [Journal Article] X線CT画像に基づく個体別モデリング (2012)
  • Author(s): 伊能教夫
  • Journal Title: バイオメカニズム学会誌 Volume: Vol.36 No.1 Pages: 9-12
  • NAID: 10030039021
• [Journal Article] Synthesis of Mandibular Movements from Basic Motion Modes Considering Dynamic Profile of Masticatory Muscles (2012)
  • Author(s): Kiwamu SAITOU, Norio INOU, Hitoshi KIMURA, Taisei FUJIKAWA, Naoki OGAWA, Koutarou MAKI
  • Journal Title: Journal of Biomechanical Science and Engineering Volume: Vol.7 No.22 Pages: 223-236
  • NAID: 130002066905
  • Peer Reviewed
• [Journal Article] 個体別顎運動表示システムを用いた咀嚼筋群の動態観察 (2010)
  • Author(s): 齊藤極, 伊能教夫, 木村仁, 小関道彦, 藤川泰成, 浅間雄介, 小川尚己, 槇宏太郎
  • Journal Title: 顎顔面バイオメカニクス学会誌 Volume: Vol.16, No.1 Pages: 1-6
  • Peer Reviewed
• [Presentation] 基本運動モードによる下顎運動表現と咀嚼筋の活動状態の関係 (2012)
  • Author(s): 齊藤極,伊能教夫,木村仁,藤川泰成,槇宏太郎
  • Organizer: 第24回バイオエンジニアリング講演会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2012-01-08
• [Presentation] 個体別顎運動表示システムによる上下歯列の干渉状態の観察手法の開発 (2011)
  • Author(s): 齊藤極,伊能教夫,木村仁,藤川泰成,槇宏太郎
  • Organizer: 顎顔面バイオメカニクス学会大会
  • Place of Presentation: 千里ライフサイエンスセンター(大阪・豊中市)
  • Year and Date: 2011-11-13
• [Presentation] 下顎骨の患者別モデルによる力学シミュレーション (2010)
  • Author(s): 伊能教夫
  • Organizer: 第37回臨床バイオメカニクス学会抄録集
  • Place of Presentation: 国立京都国際会館(京都)
  • Year and Date: 2010-11-01
• [Presentation] 下顎骨の患者別モデルによる力学シュシレーション (2010)
  • Author(s): 伊能
  • Organizer: 第37回臨床バイオメカニクス学会
  • Place of Presentation: 京都
  • Year and Date: 2010-11-01
• [Presentation] DEVELOPMENT OF 3-D MOTION DISPLAY SYSTEM TO ASSIST DIAGNOS TICTREATMENT OF OCCLUSAL DISORDER (2010)
  • Author(s): Kiwamu Saitou, Hitoshi Kimura, Norio Inou, Michihiko Koseki, Taisei Fujikawa, Asama Yuusuke, Naoki Ogawa, Koutarou Maki
  • Organizer: The First IFToMM Asian Conference on Mechanism and Machine Science
  • Place of Presentation: Taiwan Taipei
  • Year and Date: 2010-10-23
• [Presentation] DEVELOPMENT OF 3-D MOTION DISPLAY SYSTEM TO ASSIST DIAGNOSTIC TREATMENT OF OCCLUSAL DISORDER (2010)
  • Author(s): Saitou, Kimura, Inou, Koseki, Maki, et al.
  • Organizer: The First IFToMM Asian Conference on Mechanism and Machine Science
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-10-23
• [Presentation] 個体別顎運動表示システムを用いた上下歯列の干渉状態の観察 (2010)
  • Author(s): 齊藤極,木村仁,伊能教夫,小関道彦,槇宏太郎,藤川泰成,浅間雄介,小川尚己
  • Organizer: 18回顎顔面バイオメカニクス学会大会抄録集
  • Place of Presentation: 札幌市産業振興センター(北海道・札幌市)
  • Year and Date: 2010-09-19
• [Presentation] 個体別顎運動表システムを用いた上下歯列のキハ干渉状態の観察 (2010)
  • Author(s): 齊藤, 木村, 伊能, 小関, 槇, 他
  • Organizer: 顎顔面バイオメカニクス学会
  • Place of Presentation: 札幌
  • Year and Date: 2010-09-19
• [Presentation] 個体別顎運動表示システムの開発(顎運動の経時的変化を観察するための画像マッチング手法) (2009)
  • Author(s): 齊藤極, 木村仁, 伊能教夫, 小関道彦, 藤川泰成, 浅間雄介, 小川尚己, 槇宏太郎
  • Organizer: 日本機械学会バイオフロンティア講演会
  • Place of Presentation: 和歌山市
  • Year and Date: 2009-11-08
• [Presentation] 個体別顎運動表示システムを用いた咀嚼筋の動態観察 (2009)
  • Author(s): 齊藤極,木村仁,伊能教夫,小関道彦,藤川泰成,浅間雄介,小川尚己,槇宏太郎
  • Organizer: 第17回顎顔面バイオメカニクス学会大会抄録集
  • Place of Presentation: 株式会社ヨシダ中部支店研修センター(愛知・名古屋市)
  • Year and Date: 2009-10-04
• [Presentation] 個体別顎運動表示システムを用いた咀嚼筋の動態観察 (2009)
  • Author(s): 齊藤極, 木村仁, 伊能教夫, 小関道彦, 藤川泰成, 浅間雄介, 小川尚己, 槇宏太郎
  • Organizer: 顎顔面バイオメカニクス学会大会
  • Place of Presentation: 名古屋市
  • Year and Date: 2009-09-03
• [Remarks] 伊能研究室ホームページ
  • URL: http://www.mech.titech.ac.jp/~inouhp/
• [Remarks]
  • URL: http://www.mech.titech.ac.jp/~inouhp/