チタン焼付用陶材の諸性質 Material Property of Porcelain Fused to Titanium

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著者

    • 鈴木 康仁 SUZUKI Yasuhito
    • 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
    • 岡田 智雄 OKADA Tomoo
    • 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

抄録

This study, for clinical application of dentistry, was conducted to investigate five physical properties of four porcelain candidates: Vickers hardness, fracture toughness, color stability, crack level, and firing shrinkage of the porcelain fused to titanium. The four candidates-Noritake-TITAN, Vident-Vita Titanium, Degussa-Duceratin, and Ohara-Titanbond-were investigated under the condition of loading 5 kgf to them for 15 seconds. The results were as follows:<BR>1. Vickers hardness: 707 through 847 HV<BR>2. Fracture toughness: 1.26 through 1.84 MNm<SUP>3/2</SUP> (The maximum with Ohara-Titanbond)<BR>3. Color stability: a. Opaque's: L*=83.27 to 87.69, a*=1.40 to 2.45, b*=9.97 to 15.55; b. Dentin's: L*=67.60 to 73.77, a*=0.41 to 0.88, b*=6.00 to 9.26<BR>4. Crack type: Median crack<BR>5. Firing shrinkage: a. Opaque's: 10%; b. Dentin's: 15%<BR>As shown in the data, the results were significant and almost equal to that of the conventional methods, which means that the usage of the porcelain fused to titanium is just as good. Two remarkable points were found: opaque to dentin in the color stability of Y range is higher; opaque to dentin in the firing shrinkage is lower. It was concluded that improving the two points could make it the best dental application.

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 43(1), 138-148, 1999-02-10

    社団法人 日本補綴歯科学会

参考文献:  19件中 1-19件 を表示

被引用文献:  5件中 1-5件 を表示

各種コード

  • NII論文ID(NAID)
    10008172314
  • 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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