垂直的咬頭干渉が咬合力発現に及ぼす影響 Effect of Vertical Cuspal Interferences on Occlusal Force

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著者

    • 木原 伸彰 KIHARA Nobuaki
    • 大阪歯科大学大学院歯学研究科歯科補綴学専攻 Osaka Dental University, Graduate School, Major in Prosthodontics

抄録

This study was conducted to investigate the influence of the vertical cuspal interference with the madibular first molar on the appearance of occlusal force during maximum clenching and mandibule tapping.<BR>Occlusal force was measured using a three-dimensional transducer placed on unilateral first molars of mandible. Cuspal interference was applied using stainless foils (10, 30, 50, 70, 100, 200, 500, 1, 000 and 2, 000 m in thickness) to the flat occlusal table. The results were as follows:<BR>1. At the height of cuspal interferences of 10-100μm, the impulse of occlusal force increased by the centralization of force with the increase in height during clenching (10μm: 1.2 times compared to control, 100 m: 5.9 times).<BR>2. At the height of 10-100μm, the impulse of occlusal force increased by the centralization of force with the increase in height, although EMG activity (AOTC, DOTC, APTC·MV) was not changed (10μm: 1.7 times, 100μm: 5.3 times).<BR>3. At the height of 100-200μm, the mandibule became unstable, with marked changes in the impulse of occlusal force, EMG activity and mandibular position. In two of the three subjects, the increase of the occlusal force was inhibited and in the other increased.<BR>4. These findings indicate that cuspal interference is a very serious acute problem for concerned teeth.

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(1), 149-157, 1997-02-01

    Japan Prosthodontic Society

参考文献:  39件中 1-39件 を表示

被引用文献:  14件中 1-14件 を表示

各種コード

  • NII論文ID(NAID)
    10008165525
  • 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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