Department of Restorative Dentistry, School of Dentistry, Hacettepe University, 06100, Sıhhiye, Ankara Province, Turkey,
Lasers Med Sci. 2015 Feb;30(2):695-700. doi: 10.1007/s10103-013-1409-z. Epub 2013 Aug 4.
The aim of this in vitro study was to evaluate the shear bond strength (SBS) of Silorane System Adhesive to enamel and dentin surfaces that had been etched with different procedures. Ninety freshly extracted human third molars were used for the study. After the teeth were embedded with buccal surfaces facing up, they were randomly divided into two groups. In group I, specimens were polished with a 600-grit silicon carbide (SiC) paper to obtain flat exposed enamel. In group II, the overlying enamel layer was removed and exposed dentin surfaces were polished with a 600-grit SiC paper. Then, the teeth in each group were randomly divided into three subgroups according to etching procedures: etched with erbium, chromium:yttrium-scandium-gallium-garnet laser (a), etched with 35% phosphoric acid (b), and non-etched (c, control). Silorane System Adhesive was used to bond silorane restorative to both enamel and dentin. After 24-h storage in distilled water at room temperature, a SBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. The data were analyzed using two-way ANOVA and Bonferroni tests (p < 0.05). The highest SBS was found after additional phosphoric acid treatment in dentin groups (p < 0.05). There were no statistically significant differences between the laser-etched and non-etched groups in enamel and dentin (p > 0.05). The SBS of self-etch adhesive to dentin was not statistically different from enamel (p > 0.05). Phosphoric acid treatment seems the most promising surface treatment for increasing the enamel and dentin bond strength of Silorane System Adhesive.
本体外研究旨在评估 Silorane 系统黏合剂在经不同处理程序酸蚀后的牙釉质和牙本质表面的剪切黏结强度 (SBS)。90 颗新鲜提取的人第三磨牙被用于该研究。牙齿嵌入后，颊面朝上，然后将其随机分为两组。在第 I 组中，用 600 目碳化硅 (SiC) 砂纸抛光标本，以获得平整的暴露牙釉质。在第 II 组中，去除覆盖的牙釉质层，并用 600 目 SiC 砂纸抛光暴露的牙本质表面。然后，根据酸蚀程序将每组牙齿随机分为三个亚组：用铒铬：钇-钪-镓-石榴石激光 (a) 酸蚀，用 35%磷酸酸蚀 (b) 和非酸蚀 (c，对照)。Silorane 系统黏合剂用于将 Silorane 修复体黏合到牙釉质和牙本质上。在室温下蒸馏水中储存 24 小时后，使用万能试验机以 1mm/min 的十字头速度进行 SBS 测试。使用双向方差分析和 Bonferroni 检验 (p<0.05) 分析数据。在牙本质组中，经额外磷酸酸蚀处理后，SBS 最高 (p<0.05)。在牙釉质和牙本质中，激光酸蚀组与非酸蚀组之间无统计学差异 (p>0.05)。自酸蚀黏合剂的 SBS 在牙本质上与牙釉质无统计学差异 (p>0.05)。磷酸酸蚀处理似乎是提高 Silorane 系统黏合剂牙釉质和牙本质黏结强度最有前途的表面处理方法。
