Mahmood DJH, et al. – The present study aimed to examine and compare the fracture strength and fracture mode in 11 groups of currently, the most commonly used multilayer three–unit all–ceramic yttria–stabilized tetragonal zirconia polycrystal (Y–TZP) fixed dental prostheses (FDPs) with respect to the choice of core material, veneering material area, manufacturing technique, design of connectors, and radii of curvature of FDP cores. All veneering materials and techniques tested in the study, split–file, over–press, built–up porcelains, and glass–ceramics are, with a great safety margin, satisfying for clinical use both anteriorly and posteriorly. Analysis of the fracture pattern revealed differences between the milled veneers and over–pressed or built–up veneers, where the milled ones show numerically more veneer cracks and the other groups only display complete connector fractures.