Effect of the different finishing and polishing procedures on the surface roughness of three different posterior composite resins.

Finishing and polishing techniques have great importance on the long term success and aesthetics of the composite restorations. In this study it was aimed to examine the effect of three different posterior composites on surface texture with various finishing and polishing procedures. Three different posterior composites, Filtek P60, Clearfil Majesty Posterior and Cavex Quadent Posterior Dense, and three different finishing and polishing procedures diamond finishing burs, tungsten carbide burs and Sof-Lex discs were used in the study. The specimens were 5 mm in diameter and 2 mm in height. The surface roughness was measured at three seperate points with a profilometer device and the Ra values were recorded. A one-way analysis of variance (ANOVA) and Kruskal-Wallis variance analysis was applied for statistical analysis and p < 0.05 was accepted significant. No statistically significant differences were found between the composite resins with respect to surface roughness (p > 0.05). A statistically significant difference was found between the groups of diamond, carbide, and Sof-Lex groups (p < 0.05). Sof-Lex polishing system was more successful than the diamond and carbide burs in the finishing and polishing procedures of composites. SCANNING 38:448-454, 2016.