咬合力負荷時の歯の変形 Tooth Deformation under a Load of Occlusal Force

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著者

    • 大塩 恭仁 OSHIO Takayoshi
    • 徳島大学大学院歯学研究科歯科補綴学第二講座 Department of Fixed Prosthodontics, Graduate School of Dentistry, The University of Tokushima

抄録

The purpose of this study was to evaluate the relationship between tooth deformation and functional occlusal loading. Vertical length of buccal tooth surface was measured with a newly-developed submicron transform detector. Deformations of upper canines and first premolars of 13 adult volunteers were evaluated under different occlusal conditions. Buccal tooth surface was contracted with buccal cusp loading and expanded with palatal cusp loading. The median of the first premolar deformation was-171 nm/mm/ 100 N with buccal cusp loading and 34 nm/mm/100 N with palatal cusp loading.<BR>Maximum clenching at eccentric occlusion exhibited significantly larger tooth deformation than that of intercuspal occlusion. The experimental occlusal interference exhibited relatively large tooth deformation, while insignificant deformation was seen with mastication. The results suggested that tooth structure may receive more harmful influence from occlusal imbalance and bruxism, and that tooth deformation analysis may have potential to a evaluate a clinically ideal occlusion.

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 44(2), 254-264, 2000-04-10

    Japan Prosthodontic Society

参考文献:  22件中 1-22件 を表示

被引用文献:  7件中 1-7件 を表示

各種コード

  • NII論文ID(NAID)
    10008155263
  • 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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