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The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets

Background. Any decrease in friction between orthodontic wire and bracket can accelerate tooth movement in the sliding technique and result in better control of anchorage. This study was carried out to evaluate frictional forces by coating orthodontic wires and porcelain brackets with zinc oxide nan...

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Autores principales: Behroozian, Ahmad, Kachoei, Mojgan, Khatamian, Masumeh, Divband, Baharak
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Tabriz University of Medical Sciences 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4945159/
https://www.ncbi.nlm.nih.gov/pubmed/27429727
http://dx.doi.org/10.15171/joddd.2016.017
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author Behroozian, Ahmad
Kachoei, Mojgan
Khatamian, Masumeh
Divband, Baharak
author_facet Behroozian, Ahmad
Kachoei, Mojgan
Khatamian, Masumeh
Divband, Baharak
author_sort Behroozian, Ahmad
collection PubMed
description Background. Any decrease in friction between orthodontic wire and bracket can accelerate tooth movement in the sliding technique and result in better control of anchorage. This study was carried out to evaluate frictional forces by coating orthodontic wires and porcelain brackets with zinc oxide nanoparticles (ZnO). Methods. In this in vitro study, we evaluated a combination of 120 samples of 0.019×0.025 stainless steel (SS) orthodonticwires and 22 mil system edgewise porcelain brackets with and without spherical zinc oxide nanoparticles. Spherical ZnOnanoparticles were deposited on wires and brackets by immersing them in ethanol solution and SEM (scanning electronmicroscope) evaluation confirmed the presence of the ZnO coating. The frictional forces were calculated between the wiresand brackets in four groups: group ZZ (coated wire and bracket), group OO (uncoated wire and bracket), group ZO (coatedwire and uncoated bracket) and group OZ (uncoated wire and coated bracket). Kolmogorov-Smirnov, Mann-Whitney andKruskal-Wallis tests were used for data analysis. Results. The frictional force in ZZ (3.07±0.4 N) was the highest (P <0.05), and OZ (2.18±0.5 N) had the lowest amount of friction (P <0.05) among the groups. There was no significant difference in frictional forces between the ZO and OO groups (2.65±0.2 and 2.70±0.2 N, respectively). Conclusion. Coating of porcelain bracket surfaces with ZnO nanoparticles can decrease friction in the sliding technique,and wire coating combined with bracket coating is not recommended due to its effect on friction.
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spelling pubmed-49451592016-07-15 The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets Behroozian, Ahmad Kachoei, Mojgan Khatamian, Masumeh Divband, Baharak J Dent Res Dent Clin Dent Prospects Original Article Background. Any decrease in friction between orthodontic wire and bracket can accelerate tooth movement in the sliding technique and result in better control of anchorage. This study was carried out to evaluate frictional forces by coating orthodontic wires and porcelain brackets with zinc oxide nanoparticles (ZnO). Methods. In this in vitro study, we evaluated a combination of 120 samples of 0.019×0.025 stainless steel (SS) orthodonticwires and 22 mil system edgewise porcelain brackets with and without spherical zinc oxide nanoparticles. Spherical ZnOnanoparticles were deposited on wires and brackets by immersing them in ethanol solution and SEM (scanning electronmicroscope) evaluation confirmed the presence of the ZnO coating. The frictional forces were calculated between the wiresand brackets in four groups: group ZZ (coated wire and bracket), group OO (uncoated wire and bracket), group ZO (coatedwire and uncoated bracket) and group OZ (uncoated wire and coated bracket). Kolmogorov-Smirnov, Mann-Whitney andKruskal-Wallis tests were used for data analysis. Results. The frictional force in ZZ (3.07±0.4 N) was the highest (P <0.05), and OZ (2.18±0.5 N) had the lowest amount of friction (P <0.05) among the groups. There was no significant difference in frictional forces between the ZO and OO groups (2.65±0.2 and 2.70±0.2 N, respectively). Conclusion. Coating of porcelain bracket surfaces with ZnO nanoparticles can decrease friction in the sliding technique,and wire coating combined with bracket coating is not recommended due to its effect on friction. Tabriz University of Medical Sciences 2016 2016-06-15 /pmc/articles/PMC4945159/ /pubmed/27429727 http://dx.doi.org/10.15171/joddd.2016.017 Text en © 2016 Behroozian et al. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article published and distributed by Tabriz University of Medical Sciences under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Behroozian, Ahmad
Kachoei, Mojgan
Khatamian, Masumeh
Divband, Baharak
The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title_full The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title_fullStr The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title_full_unstemmed The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title_short The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
title_sort effect of zno nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4945159/
https://www.ncbi.nlm.nih.gov/pubmed/27429727
http://dx.doi.org/10.15171/joddd.2016.017
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