Mechanical and optical properties of indirect veneering resin composites after different aging regimes

This study tested and compared properties of six modern indirect veneering resin composites (VRC), namely Ceramage (Shofu), dialog Vario (Schütz Dental), Gradia Plus (GC Europe), in:joy (Dentsply), Signum composite (Heraeus Kulzer), SR Nexco (Ivoclar Vivadent). Specimens were fabricated from dentin enamel pastes following analyzed: (1) two-body wear (TB), (2) surface roughness (SR), (3) Martens hardness parameters (HM EIT), (4) translucency (T). The highest impact on HM EIT was exerted by VRC brand (HM: ηP2=0.960/ EIT: ηP2=0.968; p<0.001), followed paste material ηP2=0.502/ ηP2=0.580; aging duration ηP2=0.157/ ηP2=0.112; p<0.001). Lowest TB measured for Vario, respectively (p<0.001). Highest T showed VRCs should be individually selected with respect to the indication area, due different properties.