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Development of new occlusal evaluation system based on peculiarity of tooth vibration during palpation.

Research Project

Project/Area Number 06454564
Research Category

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

Allocation TypeSingle-year Grants
Research Field 補綴理工系歯学
Research InstitutionAichi-Gakuin University

Principal Investigator

ITO Yutaka  School of Dentistry, Aichi-Galuin University, Professor., 歯学部, 教授 (20139950)

Co-Investigator(Kenkyū-buntansha) HASHIMOTO Kazuyoshi  School of Dentistry, Aichi-Gakuin University, Assistant Professor, 歯学部, 講師 (90201706)
ARAKI Akizumi  School of Dentistry, Aichi-Gakuin University, Assosicate Professor, 歯学部, 助教授 (10201295)
中村 健太郎  愛知学院大学, 歯学部, 助手 (00261032)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥6,500,000 (Direct Cost: ¥6,500,000)
KeywordsOcclusal Evaluation / Tooth Vibration / Palpation / FFT analysis / Peak Frequency / Premature Contact / maximum amplitude / 咬合診査 / 振動加速度 / 周波数分析 / 累積積分値
Research Abstract

Our previous studies indicated that the tooth vibration during palpation showed a growing amplitude around 200 Hz when the palpated tooth had some premature contact, and that the maximum amplitude of tooth vibration might be a new parameter for an objective occulusal evaluation when a suitable finger pressure (from 50 to 150 gr.) was applied. The purpose of this study was to confirm the reliability of the new parameter for occlusal evaluation. Five volunteers were used and each tooth vibration of their #11,21,13,23,14 and 24 teeth was measured during habitual closing movement of the mandible. Artificial premature contact to teeth #11,13 and 14 was simulated individually by a multiple-thickness platinum foil. But no artificial premature contact was given to teeth #21,23 and 24, which was measured for each control tooth #11,13 and 14. The accelerometer pick-ups were used to measure the tooth vibration with about 50 gr.finger pressure. FFT analysis was applied to each wave form of tooth vibration, and then the maximum amplitude and its peak frequency were calculated. The results were as follows : each vibration of the teeth given premature contact showed a significantly higher value in the maximum amplitude than the vibration of each control tooth (Student's t-Test, p<0.01) and also all of the peak frequencies were observed in the range of 150 to 750 Hz (Confidence Interval at the 99%).
Then we manufactured a new occlusal evaluation system using these results based upon tooth vibration during palpation

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 村上 弘: "Dental Prescaleの発色濃度および面積の経時的変化" 愛知学院大学歯学会誌. 33. 571-578 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 伊藤 裕: "咬合紙による印記状態が咬合診査におよぼす影響" 愛知学院大学歯学会誌. 33. 579-590 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 横山 隆: "手指圧を利用した対合接触状態の判定 第1報" 日本補綴歯科学会雑誌第96回日本補綴歯科学会学術大会論文集. 40. 156-156 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] YUTAKA ITO: "New Occlusal Evaluation System Based on Peculiarity of Tooth Vibration." Journal of Deantal Research. 76. 371-371 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] HIROSHI MURAKAMI: "Change of Color Density and Area on Dental Prescale Process of Time" THE AICHI-GAUIN JOURNAL OF DENTAL SCIENCE. 33-3. 571-578 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] YUTAKA ITO: "The Marks of the Articulating Paper and the Occlusal Evaluation by the Dentists" THE AICHI-GAUIN JOURNAL OF DENTAL SCIENCE. 33-3. 579-590 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] TAKASHI YOKOYAMA: "Discrimination of the Opposing Conact Condition using the Mannual Pressure Part 1" The Journal of the Japan Prosthodontic Society, PROCEEDINGS OF THE 96th CONFERENCE THE JAPAN PROSTHODONTIC SOCIETY. 40. 156 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] YUTAKA ITO: "New Occlusal Evaluation System Based on Peculiarity of Tooth Vibration." Journal of Dental Research. 76. 371 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 伊藤 裕: "咬合診査の飛躍をめざして" 愛知学院大学歯学会誌. 33. 765-769 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 伊藤 裕: "咬合紙による印記状態が咬合診査におよぼす影響" 愛知学院大学歯学会誌. 33. 579-590 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 村上 弘: "Dental Prescaleの発色濃度および面積の経時的変化" 愛知学院大学歯学会誌. 33. 571-578 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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