Comparative assessment of frictional forces between differently designed esthetic brackets during simulated canine retraction

ConclusionsThe round-cornered conventional-ligating bracket showed less FR when compared to sharp-cornered conventional-ligating bracket. Conversely, the round-cornered conventional-ligating bracket exhibited greater FR when compared to the round-cornered self-ligating bracket, with an exception with respect to the 0.018 ″ wire. In general, FR increased with increased wire dimension.
Source: Journal of Orofacial Orthopedics/Fortschritte der Kieferorthopadie - Category: ENT & OMF Source Type: research