Abstract
The aim of this study was to evaluate the frictional forces generated by 4 types of passive stainless steel self-ligating brackets (SLBs) and by nonconventional elastomeric ligatures (NCEL) and conventional elastomeric ligatures (CEL) during sliding mechanics. An experimental model consisting of 5 aligned stainless steel 0.022-in brackets was used to assess frictional forces produced by the SLBs, NCEL, and CEL with a 0.019 x 0.025-in stainless steel wire. Significantly smaller static and kinetic forces were generated by the SLBs and NCEL (<2 g) compared with the CEL (>500 g). No significant differences were found within the different types of SLBs, or between these and the NCEL. SLBs and NCEL are valid alternatives for low friction during sliding mechanics.
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