新規PMMA系レジンセメントの機械的性質

  • 大竹 志保
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野
  • 五島 健一
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野
  • 遊佐 耕一郎
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野
  • 福井 雄二
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野
  • 駒田 亘
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野
  • 小椋 直樹
    三菱東京UFJ銀行健康センター (本館) 歯科
  • 三浦 宏之
    東京医科歯科大学大学院医歯学総合研究科摂食機能保存学講座摂食機能保存学分野

書誌事項

タイトル別名
  • Mechanical properties of newly developed PMMA resin cement

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抄録

The purpose of this study was to evaluate the mechanical properties of an experimental PMMA resin cement PRC-01 (PRC). Film thickness, flexural strength and tensile bond strength to both enamel and dentin were compared with three commercially available resin cements: Multibond (MB), Super-Bond C&B (SB), and Super-Bond Quick (SBQ). Film thickness and flexural strength (three-point bending test) were measured according to ISO 4049. In addition, the film thickness affected by working time was measured after0, 1, 2and3minutes. The tensile bond strength to both enamel and dentin substrate of bovine teeth were measured after5minutes, 10minutes and 24hours respectively. The results were as follows. The film thickness of all cements met the ISO4049standard. Only PRC showed no increase in film thickness after3minutes. MB showed the lowest value in the modules in bending, while the other three cements showed no statistically significant difference. SBQ showed the lowest value in the modules in bending, while the other three cements showed no statistically significant difference. PRC showed high tensile bond strength to both enamel and dentin after5minutes, which was similar to that of MB. All cements showed no statistically significant difference in the tensile bond strength after24hours. The results indicate that PRC has good mechanical properties.

収録刊行物

  • 接着歯学

    接着歯学 26 (1), 8-16, 2008

    日本接着歯学会

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