Mechanical properties of newly developed PMMA resin cement

  • OTAKE Shiho
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • GOSHIMA Kenichi
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • YUSA Koichiro
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • FUKUI Yuji
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • KOMADA Wataru
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University
  • OGURA Naoki
    Department of Dentistry, Medical Center, Head Office, The Bank of Tokyo-Mitsubishi UFJ, Ltd.
  • MIURA Hiroyuki
    Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University

Bibliographic Information

Other Title
  • 新規PMMA系レジンセメントの機械的性質

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Abstract

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.

Journal

  • Adhesive Dentistry

    Adhesive Dentistry 26 (1), 8-16, 2008

    Japan Society for Adhesive Dentistry

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