Enamel Conditioning by Phosphoric Acid and Er.Cr: YSGG Laser Irradiation - EDS and SEM Studies

Catalina Iulia Saveanu,Loredana Golovcencu,Daniela Anistoroaei,Oana Tanculescu,Loredana Liliana Hurjui,Oana Dragos,Irina Bamboi,Alexandra Ecaterina Saveanu

doi:10.37358/rc.19.9.7501

Abstract

This study evaluated the effects of ortophosforic acid and Er.Cr: YSGG LASER on human enamel by means of a field emission in-lens scanning electron microscope. The materials used for conditioning the teeth were SE�35% (Scotchbond� Etchant Phosphoric Acid) and MG6-MZ6 tips with Er, Cr: YSGG laser, 30% water, 60% air, 5.5 W/20 Hz according to manufacturer�s instructions. The acid time of action determines enamel demineralization in all situation. Er.Cr: YSGG laser treatment of non-carious enamel, a laser power of 5.5 W is found to be the optimal to improve the micromorphology of enamel.

Highlights

This study evaluated the effects of ortophosforic acid and Er.Cr: YSGG LASER on human enamel by means of a field emission in-lens scanning electron microscope
By electronic microscopy studies we highlighted the fact that a time by 5 s (Figure 3-A), 10 s (Figure 3-B), 20 s (Figure 3-C), 30 s-D) is as effective as one performed for 60 s (Figure 3-E), or 120 s (Figure 3-F), the enamel attack mode being unchanged by the time of action except the depth of around the enamel prisms
The technique of total acid etching made for the adhesion of composite resin to enamel has revolutionized the practice of dental restorations

Summary

Introduction

This study evaluated the effects of ortophosforic acid and Er.Cr: YSGG LASER on human enamel by means of a field emission in-lens scanning electron microscope. Efficient enamel hybridization by a maximum monomer infiltration, so that the adhesion force value is less dependent on the depth of enamel penetration and more the total contact surface between the resin and the substrate [7]. Controversies in the literature on the conditioning of the enamel substrate have led us to highlight the enamel structure after 35% orthophosphoric acid in different working times and the application of YSGGlaser (Biolase Waterlase-MD) laser.

Results

Conclusion