Influence of Layer Thickness and Shade on the Transmission of Light through Contemporary Resin Composites.

Background: Material-dependent parameters have an important impact on the efficiency of light polymerization. The present in vitro study aimed to investigate the influence of the increment thickness and shade of nano- and nanohybrid resin composites on the transmission of curing light.

Methods: Three contemporary resin composites were evaluated: Tetric EvoCeram (TEC); Venus Diamond (VD); and Filtek Supreme XTE (FS XTE).