Abstract：
BACKGROUND: Wet oral environment may have deleterious effects on performance of the composites due to influences of water sorption and solubility. The study evaluated the hydrolytic degradation caused because of water sorption and solubility of silorane and methacrylate-based dental composites.
METHODS: Ten disc samples (2 mm × 10 mm) were prepared. Samples were analyzed for water solubility and sorption according to ISO 4049:2000 regulations and tested for mass gain or loss following immersion in water or in artificial saliva at 1 day, 15 days, and 30 days period. Student\'s \'t\' test, repeated measures analysis of variance (ANOVA), and Tukey\'s post-hoc tests determined statistical significance of the experimental results with global significance set at P = 0.05.
RESULTS: Considerable sorption and solubility was observed with time in both materials on immersion. Silorane composites showed lower water sorption and solubility than methacrylate-based composite (MBC). Artificial saliva demonstrated higher sorption and solubility compared to distilled water.
CONCLUSIONS: Silorane composites display enhanced hydrolytic stability even after a month of immersion in contrast to conventional methacrylate-based composites (MBCs), making it a better alternative to MBC resins clinically.
METHODS: Ten disc samples (2 mm × 10 mm) were prepared. Samples were analyzed for water solubility and sorption according to ISO 4049:2000 regulations and tested for mass gain or loss following immersion in water or in artificial saliva at 1 day, 15 days, and 30 days period. Student\'s \'t\' test, repeated measures analysis of variance (ANOVA), and Tukey\'s post-hoc tests determined statistical significance of the experimental results with global significance set at P = 0.05.
RESULTS: Considerable sorption and solubility was observed with time in both materials on immersion. Silorane composites showed lower water sorption and solubility than methacrylate-based composite (MBC). Artificial saliva demonstrated higher sorption and solubility compared to distilled water.
CONCLUSIONS: Silorane composites display enhanced hydrolytic stability even after a month of immersion in contrast to conventional methacrylate-based composites (MBCs), making it a better alternative to MBC resins clinically.
摘要：
背景:由于吸水率和溶解度的影响,潮湿的口腔环境可能对复合材料的性能产生有害影响。该研究评估了由于硅烷和甲基丙烯酸酯基牙科复合材料的吸水性和溶解性而引起的水解降解。
方法:制备10个圆盘样品(2mm×10mm)。根据ISO4049：2000法规分析样品的水溶性和吸附，并在浸入水中或浸入人工唾液1天后测试质量增加或损失。15天,和30天的时间。学生的\'t\'测试，重复测量方差分析(ANOVA)，和Tukey的事后检验确定了实验结果的统计学显著性，总体显著性设置为P=0.05。
结果:在浸渍时在两种材料中观察到随时间的相当大的吸附和溶解度。硅烷复合材料显示出比基于甲基丙烯酸酯的复合材料（MBC）更低的吸水率和溶解度。与蒸馏水相比，人工唾液显示出更高的吸附和溶解度。
结论：与传统的甲基丙烯酸酯基复合材料（MBC）相比，即使浸泡一个月，硅烷复合材料也显示出增强的水解稳定性，使其在临床上更好地替代MBC树脂。
方法:制备10个圆盘样品(2mm×10mm)。根据ISO4049：2000法规分析样品的水溶性和吸附，并在浸入水中或浸入人工唾液1天后测试质量增加或损失。15天,和30天的时间。学生的\'t\'测试，重复测量方差分析(ANOVA)，和Tukey的事后检验确定了实验结果的统计学显著性，总体显著性设置为P=0.05。
结果:在浸渍时在两种材料中观察到随时间的相当大的吸附和溶解度。硅烷复合材料显示出比基于甲基丙烯酸酯的复合材料（MBC）更低的吸水率和溶解度。与蒸馏水相比，人工唾液显示出更高的吸附和溶解度。
结论：与传统的甲基丙烯酸酯基复合材料（MBC）相比，即使浸泡一个月，硅烷复合材料也显示出增强的水解稳定性，使其在临床上更好地替代MBC树脂。
