陶材焼付鋳造冠の裏装金属色遮蔽効果に及ぼすオペーク・デンティン陶材の厚さの影響  [in Japanese] Influence of Incremental Thickness of Opaque and Dentin Porcelain for Masking Effect on the Metal Base Color of Ceramometal Restoration  [in Japanese]

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Author(s)

    • 山瀬 勝 YAMASE Masaru
    • 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

The purpose of this study was to examine the influence of various thicknesses of opaque and dentin porcelain on the color of ceramometal restorations. A spectrophotometer was used to measure the color of the specimens and the color differences were calculated to determine the masking effect on the metal base color. The masking effect of the opaque porcelain (Vita shade A 1) fired on seven commercial ceramic alloys was different for each alloy. 86.5%-gold-content alloy specimens with 0.3-mm thickness of opaque porcelain demonstrated the maximum masking effect of the opaque single-layer. The masking effect of the opaque-dentin double-layer specimens was different for thickness and shade of porcelain. Palladium-silver alloy specimens with 0.2-mm thickness of opaque porcelain and 1.2-mm thickness of dentin porcelain demonstrated the maximum masking effect of double-layer of shade A 1. 52.5%-gold-content alloy specimens with 0.2-mm thickness of opaque porcelain and 1.2-mm thickness of dentin porcelain demonstrated the maximum masking effect of double-layer of shade C4.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 41(2), 266-277, 1997-04-01

    Japan Prosthodontic Society

References:  41

Cited by:  6

Codes

  • NII Article ID (NAID)
    10008165901
  • 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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