Prevention of acidic attack on tooth enamel surfaces using polishing paste containing ion-releasing filler

  • IIJIMA Tatsuya
    Department of Operative Dentistry, Nihon University School of Dentistry
  • KUROKAWA Hiroyasu
    Department of Operative Dentistry, Nihon University School of Dentistry
  • TAKAMIZAWA Toshiki
    Department of Operative Dentistry, Nihon University School of Dentistry
  • HIROKANE Eizo
    Department of Operative Dentistry, Nihon University School of Dentistry
  • TAKAHASHI Nao
    Department of Operative Dentistry, Nihon University School of Dentistry
  • WAKAMATSU Kengo
    Department of Operative Dentistry, Nihon University School of Dentistry
  • SUDA Shunichi
    Department of Operative Dentistry, Nihon University School of Dentistry
  • MIYAZAKI Masashi
    Department of Operative Dentistry, Nihon University School of Dentistry

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<p>The purpose of this study was to investigate the ability of polishing paste containing surface pre-reacted glass-ionomer (S-PRG) filler to prevent acidic attack on tooth enamel surfaces. Resin composites were filled in the standardized cavities and finished with silicon carbide paper. These specimens were divided into three groups: the unpolished “control” group, the “PRG” group polished with S-PRG paste, and the “DDP” group polished with diamond-containing polishing paste. Following polishing, the specimens were immersed in a lactic acid buffer solution for 28 days. Optical coherence tomography (OCT) signals were measured to obtain the signal intensity and width at 1/e2 at selected locations on the enamel surface adjacent to the restoration. Although signal intensity significantly increased in all groups, widths at 1/e2 did not change significantly in the PRG group. For both the control and DDP groups, signal intensity and width at 1/e2 increased and decreased over time, respectively.</p>

収録刊行物

  • Dental Materials Journal

    Dental Materials Journal 40 (6), 1352-1358, 2021-11-25

    一般社団法人 日本歯科理工学会

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