Scanning electron microscope study of the effects of CO 2 lasers on human deciduous tooth enamel

Abstract

This study compared the effects of a new CO2 laser device (Sharplan 40C, Tel Aviv, Israel) on the enamel surface of deciduous teeth in the continuous and superpulsed mode. Literature presents works on superpulsed CO2 laser specially on bone tissue and only two studies on permanent teeth. Deciduous exfoliated noncarious human canine teeth were used from the teeth collection ofthe Dentistry College ofthe University of São Paulo. The results showed specific changes on the surface ofhuman deciduous teeth enamel after application ofCO2 laser and CO2 laser superpulsed