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Am J Orthod Dentofacial Orthop. 2008 Jan;133(1):87-90. doi: 10.1016/j.ajodo.2007.08.011.

Forces released during sliding mechanics with passive self-ligating brackets or nonconventional elastomeric ligatures.

Author information

1
Department of Orthodontics, University of Florence, Florence, Italy. l.franchi@odonto.unifi.it

Abstract

INTRODUCTION:

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.

METHODS:

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.

RESULTS:

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.

CONCLUSIONS:

SLBs and NCEL are valid alternatives for low friction during sliding mechanics.

PMID:
18174077
DOI:
10.1016/j.ajodo.2007.08.011
[Indexed for MEDLINE]

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