Sterilization characteristics of dental instruments using oxygen plasma produced by narrow gap RF discharge

Yasuhiro Sakai, Zhen Liu, Masaaki Goto, Nobuya Hayashi

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    1 Citation (Scopus)

    Abstract

    Sterilization characteristics and material compatibility of low-pressure RF oxygen plasma sterilization method for dental instruments are investigated. Regarding the characteristics of the plasma sterilizer for dental instruments, it is small and can rapidly sterilize owing to a narrow gap discharge. Sterilization of vial-type biological indicators is achieved for the shortest treatment period of 40 min at an RF power of 80 W at a temperature of 70 °C. At a temperature lower than 60 °C, a sterilization period of 90 min is required using a water-cooled electrode. No surface modifications of dental instruments such as chemical composition and deterioration of fine crystals of a diamond bar were observed under a scanning electron microscope.

    Original languageEnglish
    Article number07LG05
    JournalJapanese journal of applied physics
    Volume55
    Issue number7S2
    DOIs
    Publication statusPublished - 2016

    All Science Journal Classification (ASJC) codes

    • Engineering(all)
    • Physics and Astronomy(all)

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