上下顎臼歯の機能状態に関する研究 : 歯の三次元変位  [in Japanese] The Investigation of Upper and Lower Posterior Teeth in Function : The Three Dimensional Tooth Displacement  [in Japanese]

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Author(s)

    • 岡田 大蔵 OKADA Daizo
    • 東京医科歯科大学歯学部歯科補綴学第二講座 Department of Prosthodontics II, Faculty of Dentistry, Tokyo Medical and Dental University
    • 三浦 宏之 MIURA Hiroyuki
    • 東京医科歯科大学歯学部歯科補綴学第二講座 Department of Prosthodontics II, Faculty of Dentistry, Tokyo Medical and Dental University
    • 長谷川 成男 HASEGAWA Shigeo
    • 東京医科歯科大学歯学部歯科補綴学第二講座 Department of Prosthodontics II, Faculty of Dentistry, Tokyo Medical and Dental University

Abstract

In this investigation, functional displacement of upper and lower molars were revealed using the displacement transducer type M-3. This transducer was invented by Miura in order to reveal three dimensional tooth displacement.<BR>The results were as follows:<BR>1. In general, each upper molar moved in the apical palatal direction while each lower molar moved in the lingual direction.<BR>2. For each upper molar, the amount of displacement varied proportionally depending on the clenching force. The direction of displacement was towards the palatal side.<BR>3. For each lower molar, the amount of displacement varied proportionally depending on the clenching force. The direction of displacement was to the lingual side.<BR>4. The amount of displacement depending on the clenching force was larger in each upper molar than that in each lower molar.<BR>5. It was suggested that the relative position of the upper and lower molars and the relation of their occlusal contacts at the intercuspal position vary depending on the clenching force.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(2), 279-286, 1998-04-10

    Japan Prosthodontic Society

References:  8

Cited by:  22

Codes

  • NII Article ID (NAID)
    10008169299
  • 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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