<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The objective was to evaluate and assess the surface quality of fixed orthodontic appliances after intraoral usage for several months. Nine sets of orthodontic brackets by three different manufacturers and twelve archwires differing in chemical composition were analyzed in a scanning electron microscope with an energy dispersive X-ray analyzer for signs of corrosion. Obtained results showed that the majority of the evaluated appliances displayed no traces of corrosion. Machining or casting defects hardly ever act as the origins of corrosion processes. However, some samples displayed signs of corrosion of a galvanic and pitting nature. The authors claim, that despite the surface defects, most of the appliances were able to retain the desired corrosion resistance, although in some cases these flaws could act as the origin of corrosion processes.</p></abstract>

The objective was to evaluate and assess the surface quality of fixed orthodontic appliances after intraoral usage for several months. Nine sets of orthodontic brackets by three different manufacturers and twelve archwires differing in chemical composition were analyzed in a scanning electron microscope with an energy dispersive X-ray analyzer for signs of corrosion. Obtained results showed that the majority of the evaluated appliances displayed no traces of corrosion. Machining or casting defects hardly ever act as the origins of corrosion processes. However, some samples displayed signs of corrosion of a galvanic and pitting nature. The authors claim, that despite the surface defects, most of the appliances were able to retain the desired corrosion resistance, although in some cases these flaws could act as the origin of corrosion processes.

Surface Analysis for Signs of Corrosion of Fixed Orthodontic Appliances Used In Vivo

Białystok University of Technology, Faculty of Mechanical Engineering, Department of Materials and Biomedical Engineering, 15-351 Białystok,

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The objective was to evaluate and assess the surface quality of fixed orthodontic appliances after intraoral usage for several months. Nine sets of orthodontic...

Surface Analysis for Signs of Corrosion of Fixed Orthodontic Appliances Used In Vivo

Published Online: Oct 18, 2016

Page range: 5 - 14

DOI: https://doi.org/10.1515/adms-2016-0012

Keywords
corrosion, orthodontic appliances, brackets, archwires, orthodontics

© 2016 M. Łępicka et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Surface Analysis for Signs of Corrosion of Fixed Orthodontic Appliances Used In Vivo

Published Online: Oct 18, 2016

Page range: 5 - 14

DOI: https://doi.org/10.1515/adms-2016-0012

Keywordscorrosion, orthodontic appliances, brackets, archwires, orthodontics

© 2016 M. Łępicka et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
corrosion, orthodontic appliances, brackets, archwires, orthodontics