Shear Bond Strength Between Lithium Disilicate and Zirconia Core After Addition of Nanoparticles: A Comparative Study

The objective of this study was evaluate the compressive strength of Lithium disilicate and shear bond strength with zirconia core after addition of Titanium dioxide and Silica dioxide nanoparticle to Lithium disilicate. Forty samples were divided into four groups. Each group contains (10) samples as follows: Group1 (control) lithium disilicate without the addition of nanoparticles. Group2 lithium disilicate with the addition of Titanium dioxide nanoparticles. Group 3 lithium disilicate with the