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Diagnostic studies of Temporomandibular Joint Disorders in MRI and Arthroscopy-Correlation with Arthrography and surgical findings

Research Project

Project/Area Number 02670907
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 外科・放射線系歯学
Research InstitutionShowa University

Principal Investigator

KIMURA Yoshitaka  Showa University, Associate professor, 歯学部, 助教授 (50112727)

Co-Investigator(Kenkyū-buntansha) SAKAMAKI Hideaki  Showa University, Assistant, 歯学部, 助手 (50201520)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsTemporomandibular joint (TMJ) / Internal derangement / Arthrography / Magnetic resonance imaging (MRI) / Arthroscopy / Conservative therapy / Manipulation / Classification / 関節造影法 / MRI5 / 鏡視下手術 / 関節円板
Research Abstract

In diagnosis and therapy of temporomandibular joint disorders magnetic resonance imaging(MRI)in an ideal method for visualizing hard and soft tissue structures of the temporomandibular joint(TMJ)in a short examination. MRI is useful for detection and evaluation of TMJ disk derangements, particularly in disk anterior displacement. Because of its non-irradiative diagnostics capacity, MRI has a superior value for diagnosis of uncomplicated internal derangement of the TMJ.
Arthrographic technique has been very significant on diagnosis for internal derangement of TMJ. The single contrast arthrography of the lower joint space made it possible to easily and simply detect approximate position and dynamics of the joint disk. Conventional arthrography was thought as an important procedure to detect a finding of intra-articular adhesion or perforation.
Arthroscopic examination was performed on the patients with closed lock of the TMJ. The intracapsular pathosis was clearly detected through the arth … More roscopy, and which enabled significant progress in diagnosis and treatment for closed lock TMJ patients.
The effectivity of conservative therapy for internal derangemente with closed rock of the TMJ, confirmed in MRI were investigated. Conservative therapy was gradually applied as follows : 1. oral medication of anti-inflammatory drug and muscle relaxant, 2. mandibular manipulation or pumping manipulation technique, 3. splint therapy. In the results, about 60% were successfully unlocked by the conservative therapy.
The patients with TMJ arthrosis were evaluated classified 5 types based on a classification proposed by the Japanese Society of TMJ in 1986. The iype distribution in our clinic was as follows, Type III was most commonly encountered about 45% followed by Type II Type IV, Typel and TypeV. The majority of Type 1IV were females. The cases of which bone changes of the TMJ are not so remarkable and the disks are displaced, could not be clearly determined as either Type III or Type IV. The judgment of Type II was most difficult because of its pain characters being the sole determinant.
In regard to complex type, it needs further study to determine its diagnostic criteria and application. Less

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 木村 義孝,坂巻 秀明: "顎関節症における症型分類と治療" 顎関節学会雑誌. 4巻1号. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 木村 義孝,坂巻 秀明: "MRIおよび関節鏡による顎関節疾患の診断" 昭和歯学会雑誌. 12巻3号. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kimura, Y. and Sakamaki, H.: "Diagnostic studies of temporo mandibular joint disorders in MR imaging and arthroscopy." J. Jpn Soc T. M. J.4. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kimura, Y. and Sakamaki, H.: "Treatment andclassification proposed by Japanese Society of Temporomandibular Joint." J. Showa Univ. Dent. Soc.12. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 木村 義孝,坂巻 秀明: "MRIおよび関節鏡による顎関節疾患の診断" 昭和歯学会雑誌. 12巻3号. (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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