The effect of Teflon coating on the resistance to sliding of orthodontic archwires

Giampietro Farronato, Rolf Maijer, Maria Paola Carìa, Luca Esposito, Dario Alberzoni, Giorgio Cacciatore

Research output: Contribution to journalArticle

Abstract

Teflon is an anti-adherent and aesthetic material. The aim of this study was to evaluate, in vitro, the influence of Teflon coating on the resistance to sliding (RS) of orthodontic archwires. For this purpose, Teflon - coated archwires were examined using frictional resistance tests by means of a universal testing machine and compared with conventional uncoated wires. Twelve types of archwires with round and rectangular sections (0.014, 0.018, and 0.018 × 0.025 inches) and of different materials (stainless steel and nickel - titanium) were tested with two passive self-ligating brackets (SmartClip and Opal ®) and one active self-ligating bracket (Quick ®). Each archwire - bracket combination was tested 10 times under 8 simulated clinical scenarios. Statistical comparisons were conducted between the uncoated and Teflon - coated archwires using Wilcoxon and Mann - Whitney tests, and linear regression analysis. For all bracket - archwire combinations, Teflon - coated archwires resulted lower friction than the corresponding uncoated archwires (P <0.01). The results showed that Teflon coating has the potential to reduce RS of orthodontic archwires.

Original languageEnglish
Pages (from-to)410-417
Number of pages8
JournalEuropean Journal of Orthodontics
Volume34
Issue number4
DOIs
Publication statusPublished - Aug 2012

ASJC Scopus subject areas

  • Orthodontics

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