Fig. 5From: Er:YAG laser removal of zirconia crowns on titanium abutment of dental implants: an in vitro studySEM microphotographs of zirconia sheet specimen after 5 min of laser irradiation A, B: the bonding surface of 2 mm zirconia sheet for RXL group; C, D: the bonding surface of 2 mm zirconia sheet for CSL group. The burning marks on the surface of the two kinds of cement have different morphologies, and some circular holes can be observed on the surface of RXLBack to article page