The dynamic viscoelasticity and water absorption characteristics of soft acrylic resin materials containing adipates and a maleate plasticizer

DOI Web Site PubMed 被引用文献2件 参考文献57件 オープンアクセス
  • HONG Guang
    Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University
  • TSUKA Hiroki
    Department of Advanced Prosthodontics, Graduate School of Biomedical Sciences, Hiroshima University
  • MAEDA Takeshi
    Department of Removable Prosthodontics, Osaka Dental University
  • AKAGAWA Yasumasa
    Department of Advanced Prosthodontics, Graduate School of Biomedical Sciences, Hiroshima University
  • SASAKI Keiichi
    Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University

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説明

The purpose of this study was to investigate the use of different plasticizers in soft acrylic resin materials to reduce leaching of the plasticizer and thus increase the durability of tissue conditioners. Samples were prepared containing different combinations of three types of polymer/copolymer powder and four types of plasticizer liquid (DEHM, DIBA, DAA and DINA). The dynamic viscoelasticity of each sample was measured after water immersion using a dynamic mechanical analyzer. Water absorption, solubility and weight change were also measured. A significant difference was found among the materials regarding dynamic viscoelasticity, water absorption and solubility. The samples containing P-n-BMA had the most stable G’ and G’’ scores throughout the immersion. P-n-BMA is the most suitable powder together with DEHM as the most suitable liquid component for a tissue conditioner. These results suggest that it is possible to improve the durability of tissue conditioners by combining different polymers and plasticizers.

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