THE USE OF SELF-ETCHING ADHESIVES IN ORTHODONTICS: THE STATE OF ART

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 (H2O) and pH around 1-2; they also provide
a smaller amount of enamel loss and smaller risks of fracture than conventionaladhesives; 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.