The teeth are restored using Cerec AC with the Bluecam/MCXL CAD/CAM system (Sirona Dental Systems). By using the design tools of the software set in Biogeneric Copy, the restorations are designed by correlating the preparations with the anatomy of the additive waxing. The ultrathin occlusal veneers are milled either from composite resin blocks (LAVA Ultimate; 3M ESPE) or ceramic blocks (e.max CAD; Ivoclar Vivadent) and polished mechanically with silicon carbide-impregnated brushes.