The aim of this study was to introduce a new design
of elastomeric ligature (low friction elastomeric ligature
- LFEL), that allows to slide between bracket and
arch with less friction and to compare his properties,
in an in vitro study, with conventional elastomeric
ligatures and metallic ligatures. An MTS Bionix essay
machine was used to determine the dinamic friction
forces delivered by the different kinds of ligatures and
the different kinds of configurations on the bracket.
The results showed that friction was much lower
when the low friction elastomeric ligature were used
in comparison with the other ligatures. The use of
LFEL seems to be indicated in sliding mechanics.
(Rev Esp Ortod. 2001;31(4):281-288)