Changes of the Surface Roughness and Gloss of Polished Resin Composites Before and After a Toothbrushing Test

DOI 4 Citations
  • TONG Ping
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • INOKOSHI Shigehisa
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • YAMADA Toshimoto
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • HOSODA Hiroyasu
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

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  • 歯刷子摩耗試験前後のコンポジットレジンの表面粗さおよび光沢度変化に関する研究

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The surface texture changes of four kinds of resin composites were compared with that of commercially available acrylic plate, which was used as a control.Roughness and gloss of various polished resin surfaces before and after a toothbrushing test under various abrasive conditions were measured by a profile recorder and a gloss meter.The worn surfaces of the resin composites were observed using a scanning electron microscope.The surface roughness of all resin composites more or less increased after the toothbrushing test.The MFR type resin(Silux Plus)showed the smoothest surface.Also, the surface roughness of the Hybrid type resin(BR-100)was close to that of the MFR type resin, with no significant difference.The abrasive agent comprising toothpaste, glycerine and water had the most severe effect on the surface texture of the resin composites.

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