13th World Congress for Laser Dentistry

26-28, April 2012

Barcelona, Spain

Meeting Abstract

Sponsors: World Federation for Laser Dentistry

-  Poster 41

TITLE: Enamel surface conditioning with erbium laser.

AUTHORS: Teixeira LR, Soares SG, Strefezza C, Azevedo LH, Teixeira BC, Eduardo CP.

USP – LELO

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 May 1;17(Supplement1):S189.

* doi:10.4317/medoral.17643689

http://dx.doi.org/10.4317/medoral.17643689

Abstract

The masticatory system in harmony with proper form and positioning of teeth generates adequate distribution of forces between these element and their support structures. Masticatory movements include the movements of laterality and protrusion, each of them performing its function. The canines support the forces and direct them towards its long axis, protecting the posterior teeth and thereby avoiding undesirable interference that could cause instability such as occlusal wear and premature occlusal trauma. The need to restore the harmony in situation of canine cusp wear was responsible for the emergence of new restorative materials and conditioning enamel techniques to restore form, function and aesthetics of the teeth. Those cases aims to demonstrate that the Er:YAG 2.94 μm (KAVO Key) conditions the enamel surface for composite resin restorations by the ablation process. The parameters used were: 80mJ of energy and 2 Hz of repetition rate, irradiating the incisal third o f the buccal face, at the sweep mode, from mesio distal during nearly 30 seconds. Clinically, the enamel after irradiation showed a clean and slightly whitish surface similar to that caused by phosphoric acid conditioning. The erbium laser has conditioned the enamel properly, treating the surface for composite resin restoration in 30 seconds and painlessly.