Yesilyurt Cemal, Yoldas Oguz, Altintas Subutay Han, Kusgoz Adem
Department of Operative Dentistry, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
Dent Mater J. 2009 May;28(3):362-7. doi: 10.4012/dmj.28.362.
The purpose of this study was to investigate the effects of food-simulating liquids (FSL) on the hardness and flexural strength (FS) of a new silorane-based composite and to compare it with methacrylate-based composites (MBCs). Four restorative materials (Filtek Silorane, P60, Z250, and Supreme XT) were used. Specimens for the FS and hardness measurements were fabricated in customized molds. Immediately after polymerization, the materials were stored in the following dietary simulating solvents at 37 degrees C for 1 week: distilled water, 0.02 N citric acid, heptane, and 75% aqueous ethanol solution. After conditioning, the FS and hardness values were measured. Data were subjected to ANOVA/Scheffé's test at a significance level of 0.05. The hardness and FS of Filtek Silorane were not significantly affected by FSL (p>0.05). Conversely, the hardness of MBCs significantly decreased after conditioning in water and ethanol (p<0.05). Similarly, the FS values of MBCs were significantly affected after conditioning in ethanol.
本研究的目的是调查食品模拟液（FSL）对一种新型硅氧烷基复合材料的硬度和抗弯强度（FS）的影响，并将其与甲基丙烯酸酯基复合材料（MBC）进行比较。使用了四种修复材料（Filtek Silorane、P60、Z250和Supreme XT）。用于FS和硬度测量的试样在定制模具中制作。聚合后立即将材料在37摄氏度下于以下饮食模拟溶剂中储存1周：蒸馏水、0.02N柠檬酸、庚烷和75%乙醇水溶液。处理后，测量FS和硬度值。数据在显著性水平为0.05的情况下进行方差分析/谢费检验。Filtek Silorane的硬度和FS不受FSL的显著影响（p>0.05）。相反，MBC在水和乙醇中处理后硬度显著降低（p<0.05）。同样，MBC在乙醇中处理后的FS值也受到显著影响。
