Corrosive effect of disinfection solution containing hydroxyl radicals generated by photolysis of H_2O_2 on dental metals

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Author(s)

    • NAKAMURA Keisuke
    • Laboratory for Redox Regulation, Tohoku University Graduate School of Dentistry
    • YAMADA Yasutomo
    • Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
    • TAKADA Yukyo
    • Division of Dental Biomaterials, Tohoku University Graduate School of Dentistry
    • MOKUDA Takayuki
    • Laboratory for Redox Regulation, Tohoku University Graduate School of Dentistry
    • IKAI Hiroyo
    • Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
    • INAGAKI Ryoichi
    • Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
    • KANNO Taro
    • Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
    • SASAKI Keiichi
    • Division of Fixed Prosthodontics, Tohoku University Graduate School of Dentistry
    • KOHNO Masahiro
    • Department of Bioengineering, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology
    • NIWANO Yoshimi
    • Laboratory for Redox Regulation, Tohoku University Graduate School of Dentistry

Abstract

The purpose of the present study was to evaluate the corrosive effect of disinfection solution containing hydroxyl radicals generated by photolysis of H<sub>2</sub>O<sub>2</sub>on dental metals. Static immersion test was performed on four different dental metals: Ti, Type 316L stainless steel, Ag-Pd-Cu-Au alloy, and Co-Cr alloy. Metal specimens were immersed in 1 M H<sub>2</sub>O<sub>2</sub>(=3.4%) with or without light-emitting diode (LED) light irradiation (wavelength: 400 nm) for 1 week, and then the amounts of released ions were analyzed. Corrosive effect of the disinfection solution containing hydroxyl radicals on any dental metals tested in the present study never exceeded that of H<sub>2</sub>O<sub>2</sub> alone. Therefore, disinfection systems based on the photolysis of H<sub>2</sub>O<sub>2</sub> for the cleaning of dentures and treatment of oral infectious diseases would not cause problematic metal corrosion whenever the concentration of H<sub>2</sub>O<sub>2</sub> does not exceed 3%, which is a concentration used as an oral disinfectant.

Journal

  • Dental Materials Journal

    Dental Materials Journal 31(6), 941-946, 2012-11-01

    The Japanese Society for Dental Materials and Devices

References:  30

Cited by:  1

Codes

  • NII Article ID (NAID)
    10031126072
  • NII NACSIS-CAT ID (NCID)
    AA10443149
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    02874547
  • Data Source
    CJP  CJPref  J-STAGE 
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