Translucency of opaque-shade resin composites.

摘要: Purpose To measure the translucency parameter of opaque-shade resin composites. The secondary purpose was to evaluate ability materials mask dark background color. Methods CIELAB coordinates (L*, a*, b*) three composites: UniFil S (UF), Palfique Estelite (PE), and Filtek A110 (FA) were determined in two shades (Opaque A3 A3) at 1 mm 2 thickness on a white backing, backing material itself black using colorimeter. From L* a* b* thick specimens (TP) calculated for each shade opacity materials. In addition, color differences (deltaE*) also from L*, order estimate effectiveness composite If deltaE* above 2, estimated as "perceptible." Results TP values Opaque resins lower than those all evaluated. When comparing used, FA indicates higher value indicated other materials, while revealed UF. As values, recorded mm-thick range "perceptible" larger specimens, regardless For classified "imperceptible," whereas evaluated Clinical significance composites less translucent usual Hence, if restoration relatively thick, might effectively oral cavity. However, thin, could not well Therefore, clinicians should take into consideration effect matching procedure thin restoration, even is used.