Effect of Translucency on Color Stability of Resin-based Composites

Objective: This study evaluated the effect of translucency on the color stability of resin-based composites (RBCs). Methods: Different translucent/opaque shades of RBCs were used: Filtek Ultimate (FU); A2 Enamel, A2 Dentin, A2 Body, IPS Empres Direct (IED); A2 Enamel, A2 Dentin, GC Essentia (GC); LE, MD, Estelite Sigma Quick (EQ); OA2, A2, CeramX duoSphertec and One (CX); E2, D2, A2. Disc-shaped specimens were stained in coffe and then brushed. The color changes (.E) were calculated between baseline and treatment. One-way ANOVA and Tukey's post-hoc test were used for statistical analysis (alpha=0.05). Results: After staining, the difference between the.E values of RBCs was not statistically significant, except GC LE. After both staining and brushing, the Delta E values of the enamel shades were the highest, and the order of Delta E values was body > dentin for ESQ and CX, dentin > body for FU. Conclusion: The.E values of the enamel shades were the highest after both staining and brushing.