Rosales J I, Vallecillo M, Osorio R, Bravo M, Toledano M
Int Dent J. 1996 Feb;46(1):15-21.
The aim of this study was to evaluate the sealing ability of conventional self-cured glass ionomer cement, silver glass ionomer cement and light-cured glass ionomer cement as retrofilling materials. Micro-leakage was assessed by introducing the samples into a 1 per cent solution of methylene blue for eight days at a constant temperature of 37 degrees C. Dye penetration was greater when silver glass ionomer cement was used in comparison to the other two materials tested; the difference was statistically significant. Conversely, the sealing ability of light-cured glass ionomer cement was significantly higher than that of conventional glass ionomer cement. The condition of the dentine-filling material interface and the marginal adaptation of the glass ionomer cements under study were assessed using scanning electron microscopy.
本研究的目的是评估传统自凝玻璃离子水门汀、银玻璃离子水门汀和光固化玻璃离子水门汀作为倒充填材料的封闭能力。通过将样本置于37℃恒温的1%亚甲蓝溶液中8天来评估微渗漏情况。与测试的其他两种材料相比，使用银玻璃离子水门汀时染料渗透更大；差异具有统计学意义。相反，光固化玻璃离子水门汀的封闭能力明显高于传统玻璃离子水门汀。使用扫描电子显微镜评估所研究的玻璃离子水门汀的牙本质-充填材料界面情况和边缘适应性。
