Three-Point Bending Tests of Zirconia Core/Veneer Ceramics for Dental Restorations
Introduction.The mechanical strength and the surface hardness of commercially available yttrium-doped zirconia were investigated.Furthermore, a comparative study of eight different ceramic veneers, to be used for the production of two-layered all-ceramic restorative systems, was carried out.Materials and Methods.Four types of zirconia specimens wer