臼歯部ハイブリッドセラミックスブリッジの三次元光弾性実験による応力解析  [in Japanese] Three-Dimensional Photoelastic Stress Analysis on Posterior Hybrid Ceramics Bridge Restorations  [in Japanese]

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Author(s)

    • 浅田 俊之 ASADA Toshiyuki
    • 日本歯科大学歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Tokyo
    • 新谷 明喜 SHINYA Akiyoshi
    • 日本歯科大学歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Tokyo
    • 横塚 繁雄 YOKOZUKA Shigeo
    • 日本歯科大学歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Tokyo

Abstract

Hybrid ceramics meet high esthetic requirements. However, more information on application to the bridge still needed. This three-dimensional photoelastic study was conducted to analyze the stress distribution of hybrid ceramics bridge.<BR>Two types of bridge were compared. Type I was consisted of hybrid ceramics alone, while Type II had a metal frame inside. The bridge models were cut into three parts, buccal, central and lingual. The results were as follows:<BR>1. Maximum tensile stress appeared in the distal connector in Type I.<BR>2. Tensile stress appeared in the distal connector decreased in Type II.<BR>3. In both types, compressive stress closely appeared in both connectors.<BR>This means that the connectors have complicated distributions and different types of stress.<BR>4. In all three parts, the gingival area showed higher maximum shearing stress concentration than in the occlusal surface where loading applied.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 44(1), 106-114, 2000-02-10

    Japan Prosthodontic Society

References:  32

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008154707
  • 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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