咀嚼運動の機能的分析 : 下顎切歯点の運動速度の定量的評価  [in Japanese] The Analysis of Masticatory Movements : Quantitative Evaluation of the Velocity of Mandibular Incisal Point  [in Japanese]

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Author(s)

    • 佐藤 泰彦 SATOH Yasuhiko
    • 日本歯科大学歯学部歯科補綴学教室第1講座 Department of Partial and Complete Denture, The Nippon Dental University, School of Dentistry at Tokyo
    • 志賀 博 SHIGA Hiroshi
    • 日本歯科大学歯学部歯科補綴学教室第1講座 Department of Partial and Complete Denture, The Nippon Dental University, School of Dentistry at Tokyo
    • 小林 義典 KOBAYASHI Yoshinori
    • 日本歯科大学歯学部歯科補綴学教室第1講座 Department of Partial and Complete Denture, The Nippon Dental University, School of Dentistry at Tokyo

Abstract

In order to clarify whether the velocity of chewing movement would be a reliable indicator for objective evaluation of masticatory function, the chewing movement velocity of the mandibularincisal points of 100 normal subjects and 100 craniomandibular disorders (CMD) were analyzed. The results were as follows:<BR>1. For the maximum velocity of opening and closing, individual differences were observed in both groups. The average maximum velocities were 149.4 mm/sec (opening) and 149.6mm/sec (closing) in the normal subject group and 109.7mm/sec (opening) and 106.0 mm/sec (closing) in the CMD patient group, and significant differences were found between the two groups.<BR>2. For the normal subject group there was a highly significant positive correlation between the amount of opening and the maximum velocity of opening and closing.<BR>3. The average SD/OD (standard deviation/opening distance) of the velocity component were 0.78 (opening) and 0.77 (closing) for the normal subject group and 1.14 (opening) and 1.00 (closing) for the CMD patient group, and significant differences were found between the two groups.<BR>4. From the above, it was concluded that the maximum chewing velocity and the SD/OD of the velocity component of opening and closing were highly effective indicators to objectively evaluate themasticator function.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 44(1), 138-146, 2000-02-10

    Japan Prosthodontic Society

References:  46

Cited by:  8

Codes

  • NII Article ID (NAID)
    10008154821
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
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