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Analysis of masticatory function and oral morphology using the newly developed tooth wear sensing method

Research Project

Project/Area Number 09309012
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 広領域
Research InstitutionToyota Technological Institute

Principal Investigator

SATA Toshio  Toyota Technological Institute, Faculth of Engineering Professor, 工学部, 教授 (80010594)

Co-Investigator(Kenkyū-buntansha) HONDA Fumihiro  Toyota Technological Institute, Faculty of Engineering, Professor, 工学部, 教授 (20005953)
YOSHIZAWA Toru  Tokyo A&T University, Faculty of Technology, Professor, 工学部, 教授 (80020387)
ESAHSHI Masayoshi  Tohoku University, New Industry Creation Hatchery Center, Professor, 未来科学技術共同研究センター, 教授 (20108468)
ITO Gakuji  Kagoshima University, Dental School, Professor, 歯学部, 教授 (60005064)
SUWA Gen  The University Museum, The University of Tokyo, Associate pROFESSOR, 総合研究博物館, 助教授 (50206596)
中島 耕一  豊田工業大学, 工学部, 教授 (90148346)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥27,400,000 (Direct Cost: ¥27,400,000)
Fiscal Year 1999: ¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1998: ¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 1997: ¥15,200,000 (Direct Cost: ¥15,200,000)
KeywordsBiting Force Sensor / Analysis of Tooth Wear / Analysis of Jaw Movement / Masticatory Organ / Masticatory Function
Research Abstract

(1) Development of sensors for occlusal force and relative motion of teeth (Esashi, Kuroe, Inoue, Kuwabara) An occlusal force sensor based on a capacitance change and a relative motion sensor based on a magnetic coupling were fabricated by micromachine technology. These sensors were implanted in the artificial teeth for the experiment and the occlusal force and the motion were measured. These sensors were applied for various measurements in dental research.
(2) Precise measurement of jaw movement by pattern projection method (Yoshizawa, Kuroe, Inou) We developed a measurement system with the accuracy of 0.1mm at the intermittent rate of 1/60 second and measured three dimensional movement of a jaw when a grown-up man, a child or an infant masticates.
(3) Microscopic determination of the specific wear rate of tooth surface (Honda, Mohri) Measurement and analytical method of the tooth wear rate are examined. The proposed method using Ti coating and x-ray measurement is useful to determine t … More he wear rate of patient's tooth within 1 nm of error.
(4) Three-demensional measurement of enamel distribution (Suwa) We developed a method of reconstructing the three-dimensional distribution of enamel in human molars. Using this method, we investigated the enamel distributional characteristics of human molars, and evaluated existing methods based on thickness measures taken on controlled and arbitrary sections.
(5) Analysis of the relation between dental wear and three-dimensional cranial structure (Mizoguchi) It was confirmed through multivariate analyses that three-dimensional cranial structure was associated with dental wear and with vertebral morphology.
(6) Comparative analysis of tooth wear patterns among hominoids (Uchida) Morphological variation of the mandibular molar in the extant and Miocene hominoids was analyzed.
(7) Development of clinical diagnostic test of masticatory function using a tooth-bearing sensor (Ito, Kuroe, Inoue). Using a pair of tooth-bearing sensors designed by Prof. Esashi, the biting force and the reciprocal movement of upper and lower molars were analyzed to develop a clinical diagnostic test of masticatory function with high accuracy.
(8) Evaluation of the development of masticatory system and its relation to diet (Inoue, Sakashita) Dental wear was evaluated on dental casts of infants and the relation among dental wear, ability of masticatory system, diet was studied. Less

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 山本将之・殿岡雅仁・大谷幸利・吉澤 徹: "格子パターン投影法を用いたモアレ法による形状計測"精密工学会誌. 65. 1111-1115 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Saito, Y.Imada and F.Honda: "The role of a reactant film on water-lubricated Si3n4/hBN surfaces Lubrication at the Frontier"Elsevier Science B.V.. 423-432 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Z.J Liu, K.Ikeda, S.Harada, Y.Kasahara, and G.Ito: "Functional Proper Tires of Jaw and Tongue Muscles in Rats Fed a Liquid Diet after Being Weaned"J. Dent Res. 77. 366-376 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 野崎浩一、戸津健太郎、王 誌男、黒江和斗、佐田登志夫、江刺正喜: "歯の噛み合い力と相対位置をモニタするセンサの開発"電気学会研究会誌. (印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 坂下玲子、井上昌一、渡辺和宏、井上直彦: "乳幼児の咀嚼器官の発育評価に関する研究"口腔衛生会誌. 46. 430-431 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] R.Sakashita, N.Inoue, K.Watanabe and T.Kamegai: "Electromyographic Evidence for Sufficient and Insufficient Developmental Space in Juvenile Jaws"Orthodontic Waves. 57. 409-416 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Yamamoto, M.Tonooka, Y.Otani, T,T,Yoshizawa: "Surface profile measurement by phase and contrast detection using grating projection method"Journal of Japan Society for Precision Engineering. 65. 1111-1115 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Sato, Y.Imada, F.Honda: "The role of reactant film on water-lubricated Si3N3/hBN surface Lubrication t the Frontier"Elsevier Science B.V.. 423-432 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] ZJ Liu, K.Ikeda, S.Harada, Y.Kasahara, G.Ito: "Functional Proper Tires of Jaw and Tongue Muscles in Rats Fed a Liquid Diet after Being Weaned"J.Dent Res. Vol.77. 366-376 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Nozaki, K. Totsu, S. Wang, K. Kuroe, T. Sata, M. Esashi: "Sensor Development for Occlusal Force and Relative Position"The Transaction of the Institute of Electrical Engineers of Japan. 120-E(in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] R.Sakashita, M.Inoue, K.Watanabe, N.Inoue: "A study on the Evaluation of Development of Masticatory System in Infants"Journal of Dental Health. Vol. 46. 430-431 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S.Skashit, N.inoue, K.Watanabe, T.Kamegai: "Electromyographic Evidence for Sufficient and insufficient Developmental Space in Juvenile Jaws"Orthodontic Wave. Vol.57. 409-416 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山本 将之,殿岡 雅仁,大谷 幸利,吉澤 徹: "格子パターン投影法を用いたモアレ法による形状計測"精密工学会誌. 65. 1111-1115 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Saito, Y. Imada and F. Honda: "The rols of a reactant film on water-lubricated Si3N4/hBN surfaces Lubrication at the Frontier"Elsevier Science B. V.. 423-432 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] ZJ Liu, K. Ikeda, S. Harada, Y. Kasahara, and G. Ito: "Functional Proper Tires of Jaw and Tongue Muscles in Rats Fed a Liquid Diet after Being Weaned"J. Dent Res. 77. 366-376 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 野崎 浩一、戸津 健太郎、王 誌男、黒江 和斗、佐田 登志夫、江刺 正喜: "歯の噛み合い力と相対位置をモニタするセンサの開発"電気学会研究会誌. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 坂下 玲子、井上 昌一、渡辺 和宏、井上 直彦: "乳幼児の咀嚼器官の発育評価に関する研究"口腔衛生会誌. 46. 430-431 (1996)

    • Related Report
      1999 Annual Research Report
  • [Publications] R. Sakashita, N. Inoue, K. Watanabe and T. Kamegai: "Electromyographic Evidence for Sufficient and Insufficient Developmental Space in Juvenile Jaws"Orthodontic Waves. 57. 409-416 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 戸津健太郎、野崎浩一、玉詩男、佐田登志夫、黒江和斗、江差正喜: "歯の噛み合い力と相対位置検出センサシステム" 電気学会 物理センサ研究会. PS-98-15. 77-82 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Suwa G & Kono-Takeuchi R: "A refined method of measuring basal crown and cusp areas by use of a three-dimensional digitizing system" Anthropological Science. Vol.106(Suppl.). 95-105 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mizoguchi, Y.: "Covariations of the neurocanium with the cervical, thoracic and lumbar vertebrae and the sacrum : Toward the solution of the brachycephalization problem" Bull.Nath.Sci.MUS., Tokyo, Ser.D. Vol.24. 19-48 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mizoguchi, Y.: "Significant association between cranial length and sacral breadth : Toward the solution of the brachycephalization problem" Anthropological Science. Vol.106(Suppl.). 147-160 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] R.Sakashita, N.Inoue, K.Watanabe M.Watanabe and T. Kamegai: "Electromyographic evidence for sufficient and insufficient developmental space in juvenile jaws" Orthodontic Waves. Vol.57 No.6. 409-416 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mizoguchi, Y.: "Size variation and covariation among deciduous teeth. In : Human Dental Development, Morphology, and Pathology : A Tribute to Albert A.Dahlberg" J.R.Lukacs. University of Oregon, Eugene(分担執筆), 447 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 河野礼子、 諏訪元、 谷尻豊寿: "三次元計測を用いたエナメル質厚さの評価法" 画像ラボ. 9巻5号. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Uchida: "Variation in dental morphology of Gorilla gorilla" Journal of Human Evolution. Vol.34 No.1. 55-70 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Uchida: "Variation in dental morphology of Pongo pygmaeus" Journal of Human Evolution. Vol.34 No.1. 71-80 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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