Takahashi Y, Hasegawa J, Hiranuma K, Mori H, Hasegawa A
Department of Dental Materials Science, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan.
Aichi Gakuin Daigaku Shigakkai Shi. 1990 Mar;28(1 Pt 2):271-81.
High abrasion resistance plastic teeth made of microfilled urethane dimethacrylate resin were developed around ten years ago. In recent years, several of this same type of resin teeth were developed and introduced commercially in Japan. Many studies have reported the properties of restorative resin materials, but few comparative studies have been conducted among the various resin teeth on the market. The purpose of this study was to compare the basic physical properties of conventional acrylic resin teeth as dental materials with an experimental high abrasion resistance plastic for posterior teeth made of microfilled urethane dimethacrylate. In addition, we compared the properties of the experimental teeth with the other high abrasion resistance plastic teeth including a comparative study of anterior and posterior teeth already on the market. The results indicated that basic physical properties of the experimental posterior resin teeth were better than those of the conventional acrylic resin teeth, but the staining resistance of the former was a little lower than that of the latter. Further, the experimental posterior teeth appeared to have physical properties equal to those of other resin teeth of the same type, but the staining resistance of the experimental resin teeth was higher.
大约十年前开发出了由微填料氨基甲酸酯二甲基丙烯酸酯树脂制成的高耐磨性塑料牙。近年来，日本开发了几种这种相同类型的树脂牙并将其商业化推出。许多研究报告了修复性树脂材料的性能，但针对市场上各种树脂牙进行的比较研究却很少。本研究的目的是将传统丙烯酸树脂牙作为牙科材料的基本物理性能与一种由微填料氨基甲酸酯二甲基丙烯酸酯制成的用于后牙的实验性高耐磨性塑料进行比较。此外，我们将实验牙的性能与其他高耐磨性塑料牙进行了比较，包括对市场上已有的前牙和后牙进行比较研究。结果表明，实验性后牙树脂的基本物理性能优于传统丙烯酸树脂牙，但其耐染色性略低于后者。此外，实验性后牙的物理性能似乎与其他相同类型的树脂牙相当，但其耐染色性更高。
