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Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems
OBJECTIVES: This in vitro study evaluated the friction (F) generated by aligned stainless steel (SS) conventional brackets, self-ligating Damon MX(©) brackets (SDS Ormco, Glendora, California, USA), Time3(©) brackets (American Orthodontics, Sheboygan, Wisconsin, USA), Vision LP(©) brackets (American...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dental Investigations Society
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137445/ https://www.ncbi.nlm.nih.gov/pubmed/21769273 |
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author | Tecco, Simona Di Iorio, Donato Nucera, Riccardo Di Bisceglie, Beatrice Cordasco, Giancarlo Festa, Felice |
author_facet | Tecco, Simona Di Iorio, Donato Nucera, Riccardo Di Bisceglie, Beatrice Cordasco, Giancarlo Festa, Felice |
author_sort | Tecco, Simona |
collection | PubMed |
description | OBJECTIVES: This in vitro study evaluated the friction (F) generated by aligned stainless steel (SS) conventional brackets, self-ligating Damon MX(©) brackets (SDS Ormco, Glendora, California, USA), Time3(©) brackets (American Orthodontics, Sheboygan, Wisconsin, USA), Vision LP(©) brackets (American Orthodontics), and low-friction Slide(©) ligatures (Leone, Firenze, Italy) coupled with various SS, nickel-titanium (NiTi), and beta-titanium (TMA) archwires. METHODS: All brackets had a 0.022-inch slot, and the orthodontic archwires were 0.014-inch, 0.016-inch, 0.014×0.025-inch, 0.018×0.025-inch, and 0.019×0.025-inch NiTi; 0.017×0.025-inch TMA; and 0.019×0.025-inch SS. Each bracket-archwire combination was tested 10 times. In the test, 10 brackets of the same group were mounted in alignment on a metal bar. The archwires moved through all the 10 brackets at a crosshead speed of 0.5 mm/min (each run lasted approximately 5 min). The differences among 5 groups of brackets were analyzed through the Kruskal-Wallis test, and a Mann-Whitney test was calculated as post hoc analysis. The P value was set at 0.05. RESULTS: Coupled with 0.014-inch NiTi and 0.016-inch NiTi, Victory Series(©) brackets generated the greatest F, while Damon MX(©) and Vision LP(©) brackets generated the lowest (P<.05); no significant differences were observed between Time3(©) brackets and Slide(©) ligatures. Coupled with all the rectangular archwires, Victory Series(©) brackets, Slide(©) ligatures, and Vision LP(©) self-ligating brackets generated significantly lower F than did Time3(©) and Damon MX(©) self-ligating brackets (P<.05). CONCLUSIONS: These findings suggest that self-ligating brackets are a family of brackets that, in vitro, can generate different levels of F when coupled with thin or thick, rectangular, or round archwires. Clinical conclusions based on our results are not possible due to the limitations of the experimental conditions. |
format | Online Article Text |
id | pubmed-3137445 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Dental Investigations Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-31374452011-07-18 Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems Tecco, Simona Di Iorio, Donato Nucera, Riccardo Di Bisceglie, Beatrice Cordasco, Giancarlo Festa, Felice Eur J Dent Original Articles OBJECTIVES: This in vitro study evaluated the friction (F) generated by aligned stainless steel (SS) conventional brackets, self-ligating Damon MX(©) brackets (SDS Ormco, Glendora, California, USA), Time3(©) brackets (American Orthodontics, Sheboygan, Wisconsin, USA), Vision LP(©) brackets (American Orthodontics), and low-friction Slide(©) ligatures (Leone, Firenze, Italy) coupled with various SS, nickel-titanium (NiTi), and beta-titanium (TMA) archwires. METHODS: All brackets had a 0.022-inch slot, and the orthodontic archwires were 0.014-inch, 0.016-inch, 0.014×0.025-inch, 0.018×0.025-inch, and 0.019×0.025-inch NiTi; 0.017×0.025-inch TMA; and 0.019×0.025-inch SS. Each bracket-archwire combination was tested 10 times. In the test, 10 brackets of the same group were mounted in alignment on a metal bar. The archwires moved through all the 10 brackets at a crosshead speed of 0.5 mm/min (each run lasted approximately 5 min). The differences among 5 groups of brackets were analyzed through the Kruskal-Wallis test, and a Mann-Whitney test was calculated as post hoc analysis. The P value was set at 0.05. RESULTS: Coupled with 0.014-inch NiTi and 0.016-inch NiTi, Victory Series(©) brackets generated the greatest F, while Damon MX(©) and Vision LP(©) brackets generated the lowest (P<.05); no significant differences were observed between Time3(©) brackets and Slide(©) ligatures. Coupled with all the rectangular archwires, Victory Series(©) brackets, Slide(©) ligatures, and Vision LP(©) self-ligating brackets generated significantly lower F than did Time3(©) and Damon MX(©) self-ligating brackets (P<.05). CONCLUSIONS: These findings suggest that self-ligating brackets are a family of brackets that, in vitro, can generate different levels of F when coupled with thin or thick, rectangular, or round archwires. Clinical conclusions based on our results are not possible due to the limitations of the experimental conditions. Dental Investigations Society 2011-07 /pmc/articles/PMC3137445/ /pubmed/21769273 Text en Copyright 2011 European Journal of Dentistry. All rights reserved. |
spellingShingle | Original Articles Tecco, Simona Di Iorio, Donato Nucera, Riccardo Di Bisceglie, Beatrice Cordasco, Giancarlo Festa, Felice Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title | Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title_full | Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title_fullStr | Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title_full_unstemmed | Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title_short | Evaluation of the Friction of Self-Ligating and Conventional Bracket Systems |
title_sort | evaluation of the friction of self-ligating and conventional bracket systems |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137445/ https://www.ncbi.nlm.nih.gov/pubmed/21769273 |
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