デンタルプレスケールを用いた前後的咬合力分布測定に関する模型実験的考察  [in Japanese] Experimental Study on the Anterior-Posterior Distribution of Bite Force as Measured by Dental Prescale : Investigation from Contact Force Distribution on an Experimental Model  [in Japanese]

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Author(s)

    • 野村 修一 NOMURA Shuichi
    • 新潟大学歯学部附属病院特殊歯科総合治療部 Polyclinic Intensive Oral Care Unit, School of Dentistry, Niigata University
    • 金谷 貢 KANATANI Mitsugu
    • 新潟大学歯学部歯科理工学講座 Department of Dental Materials and Technology, School of Dentistry, Niigata University
    • 河野 正司 KOHNO Shoji
    • 新潟大学歯学部附属病院特殊歯科総合治療部 Polyclinic Intensive Oral Care Unit, School of Dentistry, Niigata University
    • 加茂 剛介 KAMO Gohsuke
    • 新潟大学歯学部附属病院特殊歯科総合治療部 Polyclinic Intensive Oral Care Unit, School of Dentistry, Niigata University
    • 中野 周二 NAKANO Shuji
    • 新潟大学歯学部歯科理工学講座 Department of Dental Materials and Technology, School of Dentistry, Niigata University
    • 宮川 修 MIYAKAWA Osamu
    • 新潟大学歯学部歯科理工学講座 Department of Dental Materials and Technology, School of Dentistry, Niigata University

Abstract

Bite force measurement on intercuspal clenching in normal subjects using the pressure sensitive sheet “Dental Prescale” showed that larger bite forces were applied to the posterior teeth than to the anterior teeth. In this study, an experimental model revealed that the even thickness of the pressure sensitive sheet was one of the influential factors in this characteristic distribution.<BR>The experimental model consisted of 14 steel ball-bearings, used as substitutes for the dentition, and a glass slab which were respectively mounted in the maxillary and mandibular elements of a semiadjustable articulator. Three kinds of loading conditions were determined and applied to the upper member with an Instron-type testing machine; then contact forces were compared with the Occluzer FPD-703. Firstly, the upper member was removed from the articulator and the pressure sensitive sheet was loaded directly. Secondly, the condylar elements of the articulator were locked through centric latches, and thirdly, the condylar elements were not locked.<BR>The direct load distributed contact forces almost equally to each steel ball. On the contrary, the load with locked condylar balls distributed larger contact forces to the posterior steel ball-bearings than to the anterior ones. However, the unlocked load showed a similar distribution to the direct load.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 41(4), 710-718, 1997-08-01

    Japan Prosthodontic Society

References:  14

Cited by:  15

Codes

  • NII Article ID (NAID)
    10008167485
  • 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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