金属表面に対する金粉処理が陶材との接着強さに及ぼす影響 Effect of Metal Surface Treatment with Gold Dust on Bonding Strength between Metal and Porcelain

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著者

    • 安井 栄 YASUI Sakae
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 野首 孝祠 NOKUBI Takashi
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 永末 智裕 NAGASUE Tomohiro
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 吉備 政仁 KIBI Masahito
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 楠 智恵 KUSUNOKI Chie
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 長島 正 NAGASHIMA Tadashi
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry
    • 小野 高裕 ONO Takahiro
    • 大阪大学歯学部歯科補綴学第二講座 The Second Department of Prosthetic Dentistry, Osaka University Faculty of Dentistry

抄録

It has been proved in previous studies that the surface treatment of cobalt-chromium alloy with gold dust was effective not only to increase the bonding strength between metal and porcelain, but also to cover metal color and prevent the border coloring.<BR>In this study, two kinds of gold alloys for porcelain fusing indifferent compositions (Select 50 and Select 77 H, Ohura Precious Metal Co.) were selected to examine the effect of metal surface treatment with gold dust on the bonding strength. The size of gold dust (Super-Binder OG, Ohura Precious Metal Co.) used in this study was 1.0 μm in a uniform diameter.<BR>The results showed that both alloys exhibited stronger bonding strength after treated with gold dust, particularly in the case of Select 50. Most of the gold dust remained on the fractured surface of Select 50 specimens after the shear test, observed by scanning electron microscope. It was also found that gold dust existed on both metal and porcelain surfaces in the case of Select 77 H.<BR>The above results suggested that the treatment of a metal surface with gold dust could reinforce the bonding strength between gold alloy and porcelain. Furthermore, the bonding strength would increase greatly if the gold dust was bonded firmly to the metal surface.

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 42(6), 1066-1072, 1998-12-10

    Japan Prosthodontic Society

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各種コード

  • NII論文ID(NAID)
    10008171810
  • 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  J-STAGE 
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