臼歯部人工歯排列位置による上顎総義歯の動揺に関する研究  [in Japanese] Complete Maxillary Denture Mobility Related to Posterior Tooth Position  [in Japanese]

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Author(s)

    • 垣原 賢輔 KAKIHARA Kensuke
    • 北海道大学歯学部歯科補綴学第1講座 Department of 1st Prosthetic Dentistry, School of Dentistry, Hokkaido University
    • 野谷 健治 NOTANI Kenji
    • 北海道大学歯学部歯科補綴学第1講座 Department of 1st Prosthetic Dentistry, School of Dentistry, Hokkaido University
    • 川崎 貴生 KAWASAKI Takao
    • 北海道大学歯学部歯科補綴学第1講座 Department of 1st Prosthetic Dentistry, School of Dentistry, Hokkaido University
    • 太田 直樹 OHTA Naoki
    • 北海道大学歯学部歯科補綴学第1講座 Department of 1st Prosthetic Dentistry, School of Dentistry, Hokkaido University

Abstract

Although a lot of artificial posterior tooth positioning techniques have been proposed, correlation between complete denture stability and posterior tooth position during mastication has not yet been clarified.<BR>This study was conducted to analyze the behavior of complete maxillary dentures that have two posterior tooth positions by the simulation method. Three-dimensional mobility of these dentures was measured during biting two sizes of simulated foods on centric and eccentric positions. One of two artificial posterior teeth arrangements was based on the alveolar crest (A-denture) and the other was in a neutral zone of muscular activity (N-denture).<BR>The results were as follows:<BR>1. The working side point of two complete maxillary dentures moved downward, forward, and outward when they were loaded on one side.<BR>2. The mobility of complete maxillary dentures was changed by posterior tooth position, simulated food size, mandibular position, and tooth contact on the balancing side.<BR>3. When biting thick food, there was no tooth contact on the balancing side. In this condition, the mobility of A-denture was less than that of N-denture.<BR>4. When biting thin food, there was tooth contact on the balancing side. This contact limited the mobility of two dentures. In this condition, however, the mobility of N-denture was less than that of A-denture.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(3), 415-423, 1998-06-10

    Japan Prosthodontic Society

References:  47

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008169681
  • 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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