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The aim of this study was to determine the effects of glass and polyethylene fibers on the color and translucency change of bulk-fill and anterior composites before and after artificial accelerated aging (AAA). Two types of teflon molds were used to fabricate samples which were 13 mm in diameter and, respectively, 2 mm and 4 mm in height. Polyethylene fiber (PF) and glass fiber (GF) were incorporated in the middle of the composite samples. Color and translucency changes of each composite were evaluated before and after AAA with spectrophotometer. ANOVA and Tukey's HSD post hoc statistical analysis were used at a significance level of 0.05. Before AAA (for anterior composites), there were no significant differences in  L  *  and  b  *  parameters among the three groups ( p  > 0.05); there were no significant differences in  L  *  parameter between PF and GF groups or in TP between GF and control groups ( p  > 0.05) (for bulk-fill composites). After AAA, there were no significant differences in  L  *  parameter between GF and control groups, in  a  *  parameter between PF and control groups, in  b  *  parameter among all groups, or in TP parameter between GF and control groups ( p  > 0.05). Fiber reinforcement led to color and TP change in both anterior and bulk-fill resin composites.

Effects of Fibers on Color and Translucency Changes of Bulk-Fill and Anterior Composites after Accelerated Aging