EVALUATION OF THE EFFECT OF ETCHING WITH YTTERBIUM FIBER LASERS ON THE BOND STRENGTH OF LITHIUM DISILICATE CERAMICS TO BOVINE TEETH

Nazire Nurdan Çakır/ Damla Güneş Ünlü

Purpose: The purpose of this study is to investigate the effect of surface treatment with ytterbium fiber lasers on the shear bond strength of lithium disilicate ceramics. Material and Methods: Sixty samples (6x6) in 3 different thicknesses (0.5-1-1.5) were cut from lithium disilicate blocks with the help of a slow-speed diamond-saw sectioning machine. Samples of all thicknesses were divided into 2 groups to apply different surface treatments. in the first group, 9% hydrofluoric acid was applied to the samples for 20 seconds. For the samples in the second group, a 1070 nm ytterbium-doped pulse ...Daha fazlası