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Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study

BACKGROUND: The objective of this study is to evaluate the force-deflection behavior of beta-titanium alloy wires between two leveled and unleveled bracket alignment scenarios using a three-point bending test. METHODS: Six groups of ten beta-titanium alloy wire segments (0.017 × 0.025-in. diameter)...

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Autores principales: Insabralde, Natalia Martins, Poletti, Thaís, Conti, Ana Cláudia, Oltramari-Navarro, Paula Vanessa, Lopes, Murilo B, Flores-Mir, Carlos, de Almeida, Marcio Rodrigues
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4047828/
https://www.ncbi.nlm.nih.gov/pubmed/24949535
http://dx.doi.org/10.1186/s40510-014-0042-0
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author Insabralde, Natalia Martins
Poletti, Thaís
Conti, Ana Cláudia
Oltramari-Navarro, Paula Vanessa
Lopes, Murilo B
Flores-Mir, Carlos
de Almeida, Marcio Rodrigues
author_facet Insabralde, Natalia Martins
Poletti, Thaís
Conti, Ana Cláudia
Oltramari-Navarro, Paula Vanessa
Lopes, Murilo B
Flores-Mir, Carlos
de Almeida, Marcio Rodrigues
author_sort Insabralde, Natalia Martins
collection PubMed
description BACKGROUND: The objective of this study is to evaluate the force-deflection behavior of beta-titanium alloy wires between two leveled and unleveled bracket alignment scenarios using a three-point bending test. METHODS: Six groups of ten beta-titanium alloy wire segments (0.017 × 0.025-in. diameter) of different manufacturers (Orthometric, Ortho Organizers, GAC, Morelli, and Ormco) were used. Both brackets were bonded to an acrylic jig with a 10-mm interbracket distance. A 1-mm deflection test in two hypothetical conditions (with aligned brackets and by simulating a 2-mm horizontal displacement of the brackets) was explored. Forces of activation and deactivation of the wires during both tests were compared by an analysis of variance (ANOVA) tests followed by a Tukey test. RESULTS: A statistically significant difference was found in the force-deflection behavior between some of the wires in both simulated in vitro conditions. For the leveled-type alignment scenario, the differences between wires were up to 70 g (range 110 to 179 g). For the unleveled-type alignment scenario, these differences were up to 65 g (range 111 to 175 g). CONCLUSIONS: The study showed some significant differences in forces generated during activation and deactivation among the five types of beta-titanium wires tested. In comparing leveled and unleveled brackets during activation, only Orthometric Beta Flexy and Ormco Beta-titanium were different between them.
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spelling pubmed-40478282014-06-07 Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study Insabralde, Natalia Martins Poletti, Thaís Conti, Ana Cláudia Oltramari-Navarro, Paula Vanessa Lopes, Murilo B Flores-Mir, Carlos de Almeida, Marcio Rodrigues Prog Orthod Research Article BACKGROUND: The objective of this study is to evaluate the force-deflection behavior of beta-titanium alloy wires between two leveled and unleveled bracket alignment scenarios using a three-point bending test. METHODS: Six groups of ten beta-titanium alloy wire segments (0.017 × 0.025-in. diameter) of different manufacturers (Orthometric, Ortho Organizers, GAC, Morelli, and Ormco) were used. Both brackets were bonded to an acrylic jig with a 10-mm interbracket distance. A 1-mm deflection test in two hypothetical conditions (with aligned brackets and by simulating a 2-mm horizontal displacement of the brackets) was explored. Forces of activation and deactivation of the wires during both tests were compared by an analysis of variance (ANOVA) tests followed by a Tukey test. RESULTS: A statistically significant difference was found in the force-deflection behavior between some of the wires in both simulated in vitro conditions. For the leveled-type alignment scenario, the differences between wires were up to 70 g (range 110 to 179 g). For the unleveled-type alignment scenario, these differences were up to 65 g (range 111 to 175 g). CONCLUSIONS: The study showed some significant differences in forces generated during activation and deactivation among the five types of beta-titanium wires tested. In comparing leveled and unleveled brackets during activation, only Orthometric Beta Flexy and Ormco Beta-titanium were different between them. Springer Berlin Heidelberg 2014-05-30 /pmc/articles/PMC4047828/ /pubmed/24949535 http://dx.doi.org/10.1186/s40510-014-0042-0 Text en © Almeida et al.; licensee Springer. 2014 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Insabralde, Natalia Martins
Poletti, Thaís
Conti, Ana Cláudia
Oltramari-Navarro, Paula Vanessa
Lopes, Murilo B
Flores-Mir, Carlos
de Almeida, Marcio Rodrigues
Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title_full Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title_fullStr Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title_full_unstemmed Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title_short Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
title_sort comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4047828/
https://www.ncbi.nlm.nih.gov/pubmed/24949535
http://dx.doi.org/10.1186/s40510-014-0042-0
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