Abstract
The aim of this study is to evaluate the influence of toothbrushing with conventional and whitening dentifrices, followed by thermocycling, on optical and surface properties of stained and glazed CAD/CAM feldspar porcelain (VITABLOCS Mark II), zirconia-reinforced lithium silicate (VITA Suprinity) and partially-stabilized zirconia (IPS e.max ZirCAD). Bar-shaped specimens (n=20; 12 x 10 x 1…