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Accelerated aging effects on color and translucency of flowable composites.

Research paper by Yonca Y Korkmaz Ceyhan, Joe C JC Ontiveros, John M JM Powers, Rade D RD Paravina

Indexed on: 02 Jul '14Published on: 02 Jul '14Published in: Journal of Esthetic and Restorative Dentistry



Abstract

To evaluate the effect of accelerated aging on color and translucency parameter of composites.Filtek Supreme Ultra Flowable, shades A1, A3, White, Tetric EvoFlow, shades A1, A3, Bleach, and Filtek Z250 shades A1, A3, B1 were evaluated. Color and translucency were recorded using a spectrophotometer after 24-hour storage (baseline) and after accelerated aging. The data were analyzed by analysis of variance.Fisher's PLSD intervals for comparisons among products and shades were 0.4, 0.1, 0.3, and 0.4 for ΔL*, Δa*, Δb*, and ΔE*, respectively. The data showed significant ΔE* and ΔL* main effects for composite product and shades (p < 0.001) and their interactions (p = 0.008 and p = 0.03), respectively. Tetric EvoFlow displayed the smallest aging-dependent color shift followed by Filtek Z250 and Filtek Supreme Ultra Flowable. Accelerated aging did not significantly affected the composites for translucency (p > 0.05).The effects of aging on color of resin composites were composite and shade dependent. Translucency was not affected by accelerated aging.The effects of aging on color of resin composites were composite and shade dependent.