咬合に関する一考察 : 特に咬頭嵌合位について  [in Japanese] A Concept on Occlusion : the Intercuspal Position  [in Japanese]

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Author(s)

    • 藍 稔 AI Minoru
    • 東京医科歯科大学歯学部歯科補綴学第一講座 The 1 St Department of Prosthodontics, Faculty of Dentistry,Tokyo Medical and Dental University

Abstract

The intercuspal position (IP) is the most important jaw position associated withstomatognathic function. Since this position is determined by the upper and lower teeth, it is changeable according to the occlusal states of the teeth. Three-dimensional areas of IP useful for occlusal diagnosis and occlusal reconstructionwas discussed.<BR>In such cases, IP should be the position where the condyle isstable in the TMJ fossa and the jaw muscles function without any hindrance. The area of IP was considered to be rather great vertically because of adaptability of the muscles and the range of the rest position of the mandible.<BR>The habitual opening-closing jaw movements terminated in the area of approximately 0.3mm in diameter in normal subjects. Activities of the muscles on both sides showed imbalance when IP was displaced approximately 0.5mm laterally. Therefore, the area of IP was considered to be narrow horizontally.<BR>Clinically, it is comparatively easy to restore and maintain IP stability by the fixed prosthodontic technique. However, in case of an occlusion supported by removable free-end partial dentures, how to keep IP stable longitudinally is a big problem.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(1), 1-10, 1998-02-01

    Japan Prosthodontic Society

References:  26

Cited by:  9

Codes

  • NII Article ID (NAID)
    10008168313
  • 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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