Laser-assisted debonding of lithium disilicate veneers using an erbium chromium yttrium scandium gallium garnet laser: A clinical report

Ceramic veneers have been widely used as minimally invasive esthetic restorations; however, removal of bonded veneers can be challenging because conventional mechanical techniques may compromise tooth structure. Erbium lasers have been proposed as a conservative alternative because of their selective interaction with resin cements. This clinical report describes laser-assisted debonding of lithium disilicate veneers using an erbium chromium yttrium scandium gallium garnet (Er,Cr:YSGG) laser. A 22-year-old woman presented for replacement of 6 maxillary lithium disilicate veneers. Debonding was performed using an Er,Cr:YSGG laser (wavelength of 2780 nm) at 5 W power, 15 Hz frequency, and 60 µs pulse duration, with 40% water and 60% air in noncontact mode. The veneers were removed with minimal mechanical force, within clinically acceptable debonding times. No pulpal sensitivity, enamel damage, or ceramic fracture was observed.