Possibility of Cast Titanium Ionization When Coupled with Various Dental Alloys.

• Hashimoto Akihiko

  Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

• Kusakari Haruka

  Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

• Kogure Joji

  Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

• Kobayashi Yasuko

  Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

• Sasaki Taro

  Department of Fixed Prosthetic Dentistry, Faculty of Dentistry, Niigata University

Bibliographic Information

Other Title

• 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

Abstract

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.

Journal

• Nihon Hotetsu Shika Gakkai Zasshi

  Nihon Hotetsu Shika Gakkai Zasshi 44 (2), 198-207, 2000

  Japan Prosthodontic Society

Keywords

• titanium
• ionization
• poteptial
• galvanic coupling
• metal allergy

Details

• CRID: 1390282679387069952
• NII Article ID: 10008155033
• NII Book ID: AN00197911
• DOI: 10.2186/jjps.44.198
• ISSN: 1883177X
• ISSN: 03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/44/2/44_2_198/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2000188659
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed