Scanning electron microscopic study of argon laser-induced morphologic changes on human dental enamel and dentin

ABSTRACT

Thirty two human posterior teeth were used in this study to investigate the effect of pulsed Argon laser of different densities [40, 50 and 60 J/ cm[2]] on the surface topography of human enamel and dentin. The S.E.M. results showed apparent alterations on the surface topography of both tissues. Increasing the energy density from 40 to 60 J/Cm [2] showed worse, and destructive changes. Moreover, the effect of Argon laser on dentin was more pronounced when compared with that of enamel irrespective of the energy dentisty used