The Journal of Nihon University School of Dentistry Effect of fluoride mouthrinse and fluoride concentration on bonding of a one-step self-etch adhesive to bovine root dentin

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Author(s)

    • Nakamoto Ayako
    • Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • Sato Takaaki
    • Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • Matsui Naoko
    • Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • Ikeda Masaomi
    • Oral Prosthetic Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • Nikaido Toru
    • Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University|Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
    • Tagami Junji
    • Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

Abstract

<p>This study investigated the effect of fluoride mouthrinses on bonding of a one-step self-etch adhesive to bovine root dentin. Application of a NaF solution (0, 450, 900, or 9,000 ppm) to bovine root dentin surfaces was performed for 30 s (immediate) or before bonding of an all-in-one adhesive. Microtensile bond strength (µTBS) testing and scanning electron microscopic (SEM) observation of the acid-base resistance zone (ABRZ) were performed. µTBS values and calculated ABRZ areas were analyzed by using two-way ANOVA and the <i>t</i>-test with Bonferroni correction. The significance level was set at <i>P</i> = 0.05 (<i>n</i> = 30). Fracture mode was analyzed with the Mann-Whitney <i>U</i> test with Bonferroni correction. The significance level set at <i>P</i> = 0.00178 (<i>n</i> = 30). µTBS did not significantly differ between the control, 450 ppm F, and 900 ppm F specimens (<i>P</i> > 0.05) but was significantly lower in 9,000 ppm F specimens (<i>P</i> < 0.05). SEM showed a significant increase in acid resistance at the adhesive-dentin interface, including the ABRZ, after fluoride application.</p>

Journal

  • Journal of Oral Science

    Journal of Oral Science 61(1), 125-132, 2019

    Nihon University School of Dentistry

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