A UTILIZAÇÃO DE ADESIVOS AUTOCONDICIONANTES EM ORTODONTIA: O ESTADO DA ARTE

Abstract

The aim of this study was to review the literature about self-etching adhesives concerning their physical-chemical characteristics, the changes on the enamel surface, the etching time and their clinical effectiveness in Orthodontics. It was concluded that self-etching adhesives present in their composition the incorporation of carboxylic acid derivatives (4-MET) or phosphoric monomers (Fenil-P, 10-MDP and PENTA) the presence of water (H 2 O) and pH around 1-2; they also provide a smaller amount of enamel loss and smaller risks of fracture than conventional 98 Fabiane Renó de Souza et al. Publ. UEPG Biol. Health Sci., Ponta Grossa, v.16, n.1, p. 97-104, jul./dez. 2010 adhesives; the application time should follow manufacturer’s recommendation and the shear bond strength presents variability of results, mainly in Orthodontics. Further studies are needed to analyze the clinical effi ciency of these adhesives.