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Journal of Islamic Dental Association of Iran [The]-JIDA. 2013; 25 (2): 124-132
en Persa | IMEMR | ID: emr-147514

RESUMEN

Determining the best restorative material to decrease microleakage in class V restorations is of great importance in operative dentistry. The aim of this in-vitro study was to evaluate the microleakage of silorane-based composites compared to low shrinkage methacrylate-based composites in class V restorations. In this in vitro study, class V cavities were prepared on the buccal and lingual surfaces of 24 human premolars and molars [48 cavities]. The specimens were divided into four groups of 6[12 cavities] as follows: group 1 [LS System Adhesive, Primer and Bond + Filtek P90], group 2 [Kalore-GC+ Clearfil SE bond], group 3 [Clearfil SE bond + Grandio] and group4 [Clearfil SE bond + Aelite LS Posterior]. All the specimens were thermocycled for 2000 cycles [5-50°C]. The teeth were then immersed in 0.5% basic fuchsin dye for 24 hours at 37°C, sectioned and observed under stereomicroscope. Data were analyzed using Kruskal-Wallis and Wilcoxon tests at a P<0.05 level of significance. There were no significant differences in microleakage among the four groups at the occlusal margin [P>0.05]. But, there were statistically significant differences in microleakage between Silorane and Aelite at the gingival margin [P<0.05]. Statistically significant differences were also found in microleakage between occlusal and gingival margins [except for Kalore and Silorane] [P>0.05] Silorane was not superior to the conventional low shrinkage methacrylate-based composites except for Aelite in terms of microleakage

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