Fatigue resistance of anterior monolithic crowns produced from CAD-CAM materials: An in vitro study.

Statement Of Problem: Lithium disilicate and 5 mol% yttria partially stabilized zirconia (5Y-PSZ) are commonly used for anterior restorations. However, studies comparing the durability of 5Y-PSZ and lithium disilicates are sparse.

Purpose: The purpose of this in vitro study was to investigate the fracture load of anterior monolithic crowns made of 2 lithium disilicates and a 5Y-PSZ under dynamic loading.

Effect of metal primers and tarnish treatment on bonding between dental alloys and veneer resin.

Purpose: The aim of this study was to evaluate the effect of metal primers on the bonding of dental alloys and veneer resin. Polyvinylpyrrolidone solution's tarnish effect on bonding strength was also investigated.

Materials And Methods: Disk-shape metal specimens (diameter 8 mm, thickness 1.