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The Kinematological and Biological Study to reveal the cause of Ostheoarthrosis of TMJ

Research Project

Project/Area Number 13672149
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 矯正・小児・社会系歯学
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

TANIMOTO Yuko  Okayama University Graduate School of Medicine and Dentistry, Instructor, 大学院・医歯学総合研究科, 助手 (20190754)

Co-Investigator(Kenkyū-buntansha) FUJIKI Tatsuya  Okayama University, Dental Hospital, Instructor, 歯学部附属病院, 助手 (20322232)
MIYAWAKI Shouichi  Okayama University, Dental Hospital, Assistant Professor, 歯学部附属病院, 講師 (80295807)
YAMAMOTO Teruko (TAKANO Teruko)  Okayama University Graduate School of Medicine and Dentistry, Professor, 大学院・医歯学総合研究科, 教授 (00127250)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsTemporomandibular joint / Osteoarthorosis / Masticatory jaw movement / Internal derangement / Temporomandibular disorder / Disc displacement / Lateral excursive movement / Unilateral posterior crossbite / 筋活動
Research Abstract

It has been reported that patients with unilateral posterior crossbite are easy to suffer from temporomandibular disorders (TMDs) and temporomandibular joint (TMJ) disc displacement, particularly the lateral portion. It has been known that TMDs with disc displacement lead to the osteoarthrosis of TMJ. Therefore, in this study we examined the movement of the lateral and medial poles of condyle during mastication in such patients.
Using an optoelectronic jaw-tracking system with 6 degrees of freedom, the motion of the lateral and medial poles of condyle on the working side was recorded during deliberate unilateral mastication of standardized hard gummy jelly in each subject. The data of first 10 cycles were analyzed. Subjects consisted of 11 consecutive patients with unilateral posterior crossbite and without TMDs or TMJ disc displacement and in 11 matched normal subjects.
The lateral and medial poles of condyle on the crossbite side moved more in the medial direction and less in the lateral direction during mastication in 11 patients with unilateral posterior crossbite than the condyle in normal subjects. The lateral pole of the working condyle moved more in the posterior and inferior directions, and less in the anterior direction than the medial pole in all subjects. These results suggest that these condylar movements in patients with unilateral posterior crossbite may be related to the susceptibility to TMDs and/or TMJ disc displacement, leading to OA.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] S.Miyawaki: "Motion of the human mandibular condyle during mastication"Journal of Dental Research. 80. 437-442 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki: "Condylar motion in patients with reducing anterior disc displacement"Journal of Dental Research. 80. 1430-1435 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Fujiyama: "Severe skeletal Class III case treated with surgical orthodontic treatment and tongue reduction"Orthodontic Waves. 60. 182-187 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki: "Condylar motion during lateral excursive jaw movement in patients with unilateral posterior crossbite"Dentistry in Japan. 38. 85-88 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Fujiki: "Relationship between maxillofacial morphology and deglutitive tongue movement in patients with anterior open bite"Am J Orthod Dentofac Orthop. (in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki: "Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage"Am J Orthod Dentofac Orthop. (in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y Tanimoto et al., Ed.Kenji Takada, William R.Proffit: "Orthodontics in the 21st Century-Where are We Now? Where Are We Going?"Osaka University Press. 216 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki, et al: "Motion of the human mandibular condyle during mastication"Journal of Dental Research. Vol.80. 437-442 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki, et al: "Condylar motion in patients with reducing anterior disc displacement"Journal of Dental Research. Vol.80. 1430-1435 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Fujiyama, et al: "Severe skeletal Class III case treated with surgical orthodontic treatment and tongue reduction"Orthodontic Waves. Vol.60. 182-187 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki, et al: "Condylar motion during lateral excursive jaw movement in patients with unilateral posterior crossbite"Dentistry in Japan. Vol.38. 85-88 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Fujiki, et al: "Relationship between maxillofacial morphology and deglutitive tongue movement in patients with anterior open bite"Am J Orthod Dentofac Orthop. In press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki, et al: "Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage"Am J Orthod Dentofac Orthop. In press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Tanimoto et al, Ed. Kenji Takada and William R. Proffit: "Orthodontics in the 21st Century―Where are We Now ? Where Are We Going?"Osaka University Press. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Miyawaki: "Condylar motion during lateral excursive jaw movement in patients with unilateral posterior crossbite"Dentistry in Japan. 38. 85-88 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 井上雅秀: "歯の自家移植後矯正治療と補綴治療を行った大臼歯欠損成人症例"Orthodontic Waves. 61(2). 103-109 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Minato: "An adult case untreated for 7 years after loss the lower left first molar"Orthodontic Waves. 61(6). 466-470 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Fujiki: "Relationship between maxillofacial morphology and deglutitive tongue movement in patients with anterior open bite"Am J Orthod Dentofac Orthop. (In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Miyawaki: "Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage"Am J Orthod Dentofac Orthop. (In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Y Tanimoto et al., Ed.Kenji Takada, William R.Proffit: "Orthodontics in the 21st Century-Where are We Now ? Where Are We Going?"Osaka University Press. 216 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Miyawaki: "Motion of the human mandibular condyle during mastication"Journal of Dental Research. 80. 437-442 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Miyawaki: "Condylar motion in patients with reducing anterior disc displacement"Journal of Dental Research. 80. 1430-1435 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Fujiyama: "Severe skeletal Class III case treated with surgical orthodontic treatment and tongue reduction"Orthodontic Waves. 60. 182-187 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 谷本 裕子: "12年間管理を行った左側唇顎口蓋裂と全歯交叉咬合を伴う早期治療症例"岡山歯学会雑誌. 20. 135-143 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 谷本 裕子: "経年的に開咬を呈してきた顎関節の変形性骨関節症患者の顎顔面形態と顎口腔機能分析所見"岡山歯学会雑誌. 20. 227-234 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 谷本 裕子: "中心咬合位付近で下顎の左方偏位を示した顎関節症患者の顎顔面形態と顎口腔機能分析所見"岡山歯学会雑誌. 20. 235-242 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2022-01-20  

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