Shear Bond Strength of Ceramic Veneers to Zirconia–Calcium Silicate Cores

Improving the bond strength of veneering ceramics to ZrO2-based cores remains a challenge. The purpose this study was evaluate shear different ZrO2 containing calcium silicate (CaSi) ceramics. Five types (n = 230) were divided into two groups: with or without oxygen plasma treatment. These bound (IPS e.max Ceram VITA VM9). Shear various measured 10), in addition phase composition, surface morphology and contact angle cores. results indicated that treatment had significant effect on water cores, but little strength. Regardless treatment, highest value recorded core specimen 20 wt % CaSi, when all adhered VM 9 veneer. When using IPS veneer, plasma-treated CaSi-containing 16.6 ± 0.9 MPa higher than In-Ceram YZ control (13.4 1.0 MPa) (p < 0.05). We conclude presence CaSi can improve zirconia-based ceramic.