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A STUDY FOR EAR SYMPTOMS IN TMD PATIENTS AND THOSE RELATION TO OCCLUSAL FACTORS

Research Project

Project/Area Number 09671980
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

SASAKI Keiichi  TOHOKU UNIVERSITY,SCHOOL OF DENTISTRY,ASSOCIATE PROFESSOR, 歯学部, 助教授 (30178644)

Co-Investigator(Kenkyū-buntansha) TAMAZAWA Yoshinori  TOHOKU UNIVERSITY,DENTAL HOSPITAL,LECTURER, 歯学部・附属病院, 講師 (10124603)
HASHIMOTO Sho  TOHOKU UNIVERSITY,SCHOOL OF MEDICINE,ASSOCIATE PROFESSOR, 医学部, 助教授 (20156285)
WATANABE Makoto  TOHOKU UNIVERSITY,SCHOOL OF DENTISTRY,PROFESSOR, 歯学部, 教授 (80091768)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsTMD / TINNITUS / VERTIGO / AURAL STYMPTOM / OCCULUSION / SPLINT / HRI / 聴覚検査 / 顎関節雑音 / MRI
Research Abstract

The aural symptoms such as tinnitus, earache, vertigo, are commonly observed in Temporomandibular Disorders (TMD). The purpose of this study was to clarify the ological characteristics of aural symptoms in TMD and the relationship to the occlusal factors as an etiological factor. Twenty-five TMD patients (age ranged 16-69, mean 43.4+17.1y) with tinnitus were involved in this study. Signs and symptoms of TMD were examined by dentists. TMJs of the patients were examined by MR imaging. Aural symptoms in the patients were diagnosed with otologic examinations.
Side with tinnitus were coincided with the main symptomatic side of TMD in allpatients. Twelve patients were diagnosed with disorders of ear function ; 10 patients had sensory hearing loss at tinnitus side, 2 patients had vestibular dysfunction. Tinnitusscore in 15 patients with disc displacement of TMJ were significantly higher than thosein 10 patients with normal disc position. Eight out of 15 with disc displacement had ear disorders and 2 out of 10 with normal disc had ear disorders. The ratio of ear disorders was significantly different between these groups. Occlusal treatment, such as occlusaladjustment, splint therapy, for TMD were effective on the aural symptoms. Otologicexamination after occlusal treatment indicated improvement of ear disorders diagnosed before treatment. These results indicate that aural symptoms such as tinnitus observed in TMD are related to TMD.Those might be related to condylar position and disc position in TMJ, which are caused by occlusal factors such as loss of posterior support and displacement of jaw position.

Report

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

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 佐々木啓一: "顎口腔系と耳-歯科医学と隣接領域の医学との接点-" 補綴臨床. 32-2. 188-193 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 佐々木啓一: "顎関節症と耳症状" 日本歯科医師会雑誌. 52-1. 15-26 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] SASAKI,KEIICHI: "FUNCTIONAL RELATION BETWEEN STOMATOGNATHIC SYSTEM AND EAR-CROSSOVER AREA OF THE DENTAL SCIENCE AND MEDICAL SCIENCE." PRACTICE IN PROSTHO-DONTICS. 32-2. 188-193 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] SASAKI,KEIICHI WATANABE,MAKOTO: "TMD AND EAR SYMPTOMS" THE JOURNAL OF THE JAPAN DENTAL ASSOCIATION. 52-1. 15-26 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 佐々木啓一: "顎口腟系と耳-歯科医学と隣接領域の医学との接点-" 補綴臨床. 32巻2号. 188-193 (1999)

    • Related Report
      1998 Annual Research Report

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

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