In vitro evaluation of frictional resistance between ceramic brackets and orthodontic steel arches with and without glass coatings applied by sol-gel method

  • Luz Adriana Rendón-Arias Universidad de Antioquia
  • Gustavo Adolfo Cano-Correa Universidad de Antioquia
  • Alejandro Peláez-Vargas Universidad CES - Universidad Nacional de Colombia
  • Pedro M. Jaramillo-Vallejo Universidad de Antioquia
  • Claudia García-García Universidad Nacional de Colombia
  • Yessid Montoya-Góez Universidad CES - Universidad Nacional de Colombia
Keywords: Friction, Orthodontic brakets, Orthodontic wares, Glass coatings

Abstract

Introduction: to compare the in vitro static and dynamic frictional resistance between ceramic brackets and stainless steel wires with and without glass coatings applied by sol-gel method. Methods: 58 commercial stainless steel orthodontic wires AISI 304 (0.016 x 0.016 inch) were prepared with and without vitreous coating applied by Sol- Gel method. The in vitro static and dynamic frictional resistance of the wires on the mono-crystalline ceramic brackets were evaluated; also, the wire surfaces were characterized by means of Optical Microscopy and scanning electronic microscopy (SEM). Results: statistically significant differences were found between both groups under static (p = 0.000) as well as dynamic (p = 0.001) friction test. The friction values found in the coated group were higher (Static friction: 1.78 ± 0.44 N, Dynamic friction: 1.75 ± 0.49 N) than the group with no coating (Static friction: 1.37 ± 0.31 N, Dynamic friction: 1.41 ± 0.27 N). Characterization by SEM showed surface defects in both groups after the friction tests. Conclusion: the evaluated coatings did not perform better in terms of frictional behavior on sapphire mono-crystalline ceramic brackets when compared with the control group.

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Author Biography

Alejandro Peláez-Vargas, Universidad CES - Universidad Nacional de Colombia

 

Published
2009-09-21
How to Cite
Rendón-Arias L. A., Cano-Correa G. A., Peláez-Vargas A., Jaramillo-Vallejo P. M., García-García C., & Montoya-Góez Y. (2009). In vitro evaluation of frictional resistance between ceramic brackets and orthodontic steel arches with and without glass coatings applied by sol-gel method. Revista Facultad De Odontología Universidad De Antioquia, 20(1), 58-71. Retrieved from https://revistas.udea.edu.co/index.php/odont/article/view/2370