純チタン鋳造体の異種合金接触時におけるイオン化の可能性 Possibility of Cast Titanium Ionization When Coupled with Various Dental Alloys

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著者

    • 橋本 明彦 HASHIMOTO Akihiko
    • 新潟大学歯学部歯科補綴学第二講座 Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University
    • 草刈 玄 KUSAKARI Haruka
    • 新潟大学歯学部歯科補綴学第二講座 Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University
    • 木暮 城二 KOGURE Joji
    • 新潟大学歯学部歯科補綴学第二講座 Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University
    • 小林 康子 KOBAYASHI Yasuko
    • 新潟大学歯学部歯科補綴学第二講座 Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University
    • 佐々木 太朗 SASAKI Taro
    • 新潟大学歯学部歯科補綴学第二講座 Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

抄録

Cast titanium is one of the alternatives used in case of allergy to dental alloys. In this study, the possibility of cast titanium ionization when coupled with various dental alloys was investigated from a galvanic point of view by measuring the electric potential. The electric potential was measured versus a reference electrode (Ag/AgCl) in 0.9% NaCl solution, and the results were as follows:<BR>1. The natural potential decreased in order of Type IV-gold alloy, gold-silver-palladium alloy, JIS-class-2-silver alloy, cast titanium, machined titanium, and JIS-class-1-silver alloy.<BR>2. Under experimental conditions, cast titanium showed a higher potential than machined titanium, but when coupled with Type IV-gold alloy, gold-silver-palladium alloy, and JIS-class-2-silver alloy, cast titanium was an anode.<BR>3. The increase in the potential of cast and machined titanium after coupling with cathodic alloys suggested anode polarization and the possibility of titanium iopization.<BR>The results of this experiment suggested that galvanic coupling with other metallic restorations present in the oral cavity should be taken into consideration when titanium casts are used in metal allergy patients.

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 44(2), 198-207, 2000-04-10

    Japan Prosthodontic Society

参考文献:  47件中 1-47件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10008155033
  • 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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