ガイドの歯種の変化が側方位クレンチング時の顆頭に及ぼす影響 Influence of Changing the Location of Anterior Guidance Teeth on the Condyles during Unilateral Clenching

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著者

    • 荒井 良明 ARAI Yoshiaki
    • 新潟大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics, School of Dentistry, Niigata University
    • 河野 正司 KOHNO Shoji
    • 新潟大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics, School of Dentistry, Niigata University

抄録

This study was conducted to examine the influence of changing the location of guidance teeth on the movements of the condyles during simulated parafunctional unilateral clenching.<BR>Two healthy adults volunteered for this study. To simulate bruxist behaviour, they were asked to perform maximal clenching in a lateral edge to edge position with onlay-like metal guidances that increased by 10 degrees the inclination of the lateral excursions, but did not change at all the vertical dimension in intercuspal position.<BR>A 6-degree-of-freedom jaw movement measurement system was used to record 3-dimensionally the condylar movements.<BR>When the contact point of the anterior guidance was moved posteriorly along the arch from canine to second molar, the trajectory of working condyle movement was an antero-superior one up to the first premolar; but from the first molar this trajectory changed dramatically to an inferior one during unilateral clenching. All the trajectories of nonworking condyle movement were superior during unilateral clenching.<BR>In consideration of the movements of the working condyle during eccentric movement in a parafunctional environment, the results suggested that the location of guidance teeth should be relegated to the anterior region of the working side.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 41(3), 468-480, 1997-06-01

    Japan Prosthodontic Society

参考文献:  41件中 1-41件 を表示

被引用文献:  34件中 1-34件 を表示

各種コード

  • NII論文ID(NAID)
    10008166593
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03895386
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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