Study of the Bond at the Zirconia / Feldspathic Ceramic Interface

The growing aesthetic demands of patients have led to the development of different types of all-ceramic crowns. Y-TZP zirconia-based restorations with feldspathic ceramic guarantee more satisfaction in terms of mimicry and biocompatibility than the metal-ceramic crowns. However, the bond at the zirconia and veneered porcelain interface seems to be the weakest link in this type of restoration. Indeed, numerous cases of interfacial decohesion of the cosmetic ceramic have been reported. For this purpose, numerous scientific studies have been carried out to further explore and accurately describe the characteristics of the interface at these two ceramics in order to strengthen the bond of bilayered ceramics.