Abstract
The objective of the present study is to evaluate the bond strength of zirconia-feldspatic ceramic with liner application or Er,Cr:YSGG laser irradiation after aging. Twenty zirconia bars (10x6x4 mm3) to each group according the surface treatment will be prepared, sintered and divided randnly in six groups according surface treatment, a total of 120 zirconia bars (IPS emax.ZirCAD, Ivoclar…