Galvanic Corrosion between Dental Precious Alloys and Magnetic Stainless Steels Used for Dental Magnetic Attachments

DOI NDL Digital Collections Web Site PubMed 4 Citations 16 References
  • TAKAHASHI Noriko
    Division of Dental Biomaterials, Graduate School of Dentistry, Tohoku University
  • TAKADA Yukyo
    Division of Dental Biomaterials, Graduate School of Dentistry, Tohoku University
  • OKUNO Osamu
    Division of Dental Biomaterials, Graduate School of Dentistry, Tohoku University

Search this article

Abstract

In this study, we examined the corrosion behavior of dental precious alloys and magnetic stainless steels, namely SUS 444, SUS XM27, and SUS 447J1, used for dental magnetic attachments. Their galvanic corrosion behavior was evaluated from the viewpoint of corrosion potentials when they were in contact with each other. Rest potentials of the precious alloys were constantly higher than those of magnetic stainless steels. Since most gold alloys raised the corrosion potential more significantly than silver alloys did, silver alloys seemed to be better suited than gold alloys for combination with magnetic stainless steels. However, all corrosion potential values were sufficiently lower than the breakdown potentials of the stainless steels and existed within their passive regions. Based on the findings of this study, SUS XM27 and SUS 447J1 — which exhibited higher breakdown potentials than SUS 444 — emerged as the preferred choices for combination with gold alloys.

Journal

  • Dental Materials Journal

    Dental Materials Journal 27 (2), 237-242, 2008

    The Japanese Society for Dental Materials and Devices

Citations (4)*help

See more

References(16)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top