Surface friction of self-ligated brackets

Abstract

The present paper evaluate, through literature review, the friction surface of self ligated brackets (self-ligating) compared with conventional brackets. Some studies avaluated such factors as the materials of wires and brackets, the surface condition of the wires and the brackets fit, the cable section, the torque on the bracket-wire interface, the angle of the brackets and strength of their ligations. It was found that many factors influence the friction of both self-ligated brackets and conventional brackets, but all self ligated brackets showed lower friction values compared to those of conventional brackets.