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Assessment of Friction and Surface Roughness of a Novel Orthodontic Wire FlexyBlueTitanium. (An in vitro comparative study) | Abstract

Journal of Research in Medical and Dental Science
eISSN No. 2347-2367 pISSN No. 2347-2545

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Assessment of Friction and Surface Roughness of a Novel Orthodontic Wire FlexyBlueTitanium. (An in vitro comparative study)

Author(s): Ali Alsaffar*, Shahbaa A. Mohammed

Abstract

Introduction: Friction plays a role in reducing the efficiency of orthodontic tooth movement, so it is necessary to understand
the effect of friction and the amount of force needed to overcome its impact on biological tissue response and archwireguided
tooth movement.
Aim: the purpose of this study is to compare between two different wires: NiTi, Blue NiTi and CuNiTi by measuring the
sliding friction and surface roughness.
Materials and Methods: specimens were divided into nine groups (six specimens each) the groups were classified according
to the type of the wire and treatment condition (as received, thermocycling of 5000 cycle, distilled water aging for 1month).
The groups were tested for sliding friction in dry condition. Surface roughness of five samples of each group was examined
by means of atomic force microscope. The data were analyzed by ANOVA, Post Hock Tukey’s test for parametric tests, and
Kruskal-Wallis, pairwise comparison test for non-parametric tests.
Results: showed statistical significant difference among archwires in condition of as received and thermal-cycling (NiTi had
generates higher sliding friction compared with BlueNiTi and CuNiTi) with non-significant difference among the wires in
distilled water condition. For aging conditions, there was statistically significant difference among conditions in both NiTi
and CuNiTi wires (higher frictional resistance generated after thermal aging), while there was non-significant difference
among conditions in case of BlueNiTi wire.
Conclusion: it is recommended to use BlueNiTi archwires during the first stage of orthodontic treatment as it has the lowest
change in friction behavior after aging.

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