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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2016-06-01
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| Series: | Journal of Dental Research, Dental Clinics, Dental Prospects |
| Subjects: | |
| Online Access: | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/2497/510 |
| _version_ | 1819101437498490880 |
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| author | Ahmad Mojgan Masumeh Baharak |
| author_facet | Ahmad Mojgan Masumeh Baharak |
| author_sort | Ahmad |
| collection | DOAJ |
| 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) orthodontic
wires and 22 mil system edgewise porcelain brackets with and without spherical zinc oxide nanoparticles. Spherical ZnO
nanoparticles were deposited on wires and brackets by immersing them in ethanol solution and SEM (scanning electron
microscope) evaluation confirmed the presence of the ZnO coating. The frictional forces were calculated between the wires
and brackets in four groups: group ZZ (coated wire and bracket), group OO (uncoated wire and bracket), group ZO (coated
wire and uncoated bracket) and group OZ (uncoated wire and coated bracket). Kolmogorov-Smirnov, Mann-Whitney and
Kruskal-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. |
| first_indexed | 2024-12-22T01:18:39Z |
| format | Article |
| id | doaj.art-14fb7cda7afa4af98bb868cfcec60dce |
| institution | Directory Open Access Journal |
| issn | 2008-210X 2008-2118 |
| language | English |
| last_indexed | 2024-12-22T01:18:39Z |
| publishDate | 2016-06-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Research, Dental Clinics, Dental Prospects |
| spelling | doaj.art-14fb7cda7afa4af98bb868cfcec60dce2022-12-21T18:43:46ZengTabriz University of Medical SciencesJournal of Dental Research, Dental Clinics, Dental Prospects2008-210X2008-21182016-06-0110210611110.15171/joddd.2016.017The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic bracketsAhmad 0Mojgan 1Masumeh 2Baharak 3BehroozianKachoeiKhatamianDivbandBackground. 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) orthodontic wires and 22 mil system edgewise porcelain brackets with and without spherical zinc oxide nanoparticles. Spherical ZnO nanoparticles were deposited on wires and brackets by immersing them in ethanol solution and SEM (scanning electron microscope) evaluation confirmed the presence of the ZnO coating. The frictional forces were calculated between the wires and brackets in four groups: group ZZ (coated wire and bracket), group OO (uncoated wire and bracket), group ZO (coated wire and uncoated bracket) and group OZ (uncoated wire and coated bracket). Kolmogorov-Smirnov, Mann-Whitney and Kruskal-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.http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/2497/510FrictionnanoparticlesorthodonticsporcelainwireZnO |
| spellingShingle | Ahmad Mojgan Masumeh Baharak The effect of ZnO nanoparticle coating on the frictional resistance between orthodontic wires and ceramic brackets Journal of Dental Research, Dental Clinics, Dental Prospects Friction nanoparticles orthodontics porcelain wire ZnO |
| 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 | Friction nanoparticles orthodontics porcelain wire ZnO |
| url | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/2497/510 |
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