Superelasticity and force plateau of nickel-titanium springs: an in vitro study

Detalhes bibliográficos
Autor(a) principal: Vieira,Camila Ivini Viana
Data de Publicação: 2016
Outros Autores: Caldas,Sergei Godeiro Fernandes Rabelo, Martins,Lídia Parsekian, Martins,Renato Parsekian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Dental Press Journal of Orthodontics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000300046
Resumo: abstract Objective: This paper analyzed whether nickel-titanium closed coil springs (NTCCS) have a different superelastic (SE) behavior according to activation and whether their force plateau corresponds to that informed by the manufacturer. Methods: A total of 160 springs were divided into 16 subgroups according to their features and activated proportionally to the length of the extensible part (NiTi) of the spring (Y). The force values measured were analyzed to determine SE rates and force plateaus, which were mathematically calculated. These plateaus were compared to those informed by the manufacturer. Analysis of variance was accomplished followed by Tukey post-hoc test to detect and analyze differences between groups. Results: All subgroups were SE at the activation of 400% of Y length, except for: subgroups 4B and 3A, which were SE at 300%; subgroups 4E and 4G, which were SE at 500%; and subgroup 3C, which was SE at 600%. Subgroup 3B did not show a SE behavior. Force plateaus depended on activation and, in some subgroups and some activations, were similar to the force informed. Conclusions: Most of the springs showed SE behavior at 400% of activation. Force plateaus are difficult to compare due to lack of information provided by manufacturers.
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spelling Superelasticity and force plateau of nickel-titanium springs: an in vitro studyNiTiSuperelasticityForce plateauabstract Objective: This paper analyzed whether nickel-titanium closed coil springs (NTCCS) have a different superelastic (SE) behavior according to activation and whether their force plateau corresponds to that informed by the manufacturer. Methods: A total of 160 springs were divided into 16 subgroups according to their features and activated proportionally to the length of the extensible part (NiTi) of the spring (Y). The force values measured were analyzed to determine SE rates and force plateaus, which were mathematically calculated. These plateaus were compared to those informed by the manufacturer. Analysis of variance was accomplished followed by Tukey post-hoc test to detect and analyze differences between groups. Results: All subgroups were SE at the activation of 400% of Y length, except for: subgroups 4B and 3A, which were SE at 300%; subgroups 4E and 4G, which were SE at 500%; and subgroup 3C, which was SE at 600%. Subgroup 3B did not show a SE behavior. Force plateaus depended on activation and, in some subgroups and some activations, were similar to the force informed. Conclusions: Most of the springs showed SE behavior at 400% of activation. Force plateaus are difficult to compare due to lack of information provided by manufacturers.Dental Press International2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000300046Dental Press Journal of Orthodontics v.21 n.3 2016reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/2177-6709.21.3.046-055.oarinfo:eu-repo/semantics/openAccessVieira,Camila Ivini VianaCaldas,Sergei Godeiro Fernandes RabeloMartins,Lídia ParsekianMartins,Renato Parsekianeng2016-07-12T00:00:00Zoai:scielo:S2176-94512016000300046Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2016-07-12T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false
dc.title.none.fl_str_mv Superelasticity and force plateau of nickel-titanium springs: an in vitro study
title Superelasticity and force plateau of nickel-titanium springs: an in vitro study
spellingShingle Superelasticity and force plateau of nickel-titanium springs: an in vitro study
Vieira,Camila Ivini Viana
NiTi
Superelasticity
Force plateau
title_short Superelasticity and force plateau of nickel-titanium springs: an in vitro study
title_full Superelasticity and force plateau of nickel-titanium springs: an in vitro study
title_fullStr Superelasticity and force plateau of nickel-titanium springs: an in vitro study
title_full_unstemmed Superelasticity and force plateau of nickel-titanium springs: an in vitro study
title_sort Superelasticity and force plateau of nickel-titanium springs: an in vitro study
author Vieira,Camila Ivini Viana
author_facet Vieira,Camila Ivini Viana
Caldas,Sergei Godeiro Fernandes Rabelo
Martins,Lídia Parsekian
Martins,Renato Parsekian
author_role author
author2 Caldas,Sergei Godeiro Fernandes Rabelo
Martins,Lídia Parsekian
Martins,Renato Parsekian
author2_role author
author
author
dc.contributor.author.fl_str_mv Vieira,Camila Ivini Viana
Caldas,Sergei Godeiro Fernandes Rabelo
Martins,Lídia Parsekian
Martins,Renato Parsekian
dc.subject.por.fl_str_mv NiTi
Superelasticity
Force plateau
topic NiTi
Superelasticity
Force plateau
description abstract Objective: This paper analyzed whether nickel-titanium closed coil springs (NTCCS) have a different superelastic (SE) behavior according to activation and whether their force plateau corresponds to that informed by the manufacturer. Methods: A total of 160 springs were divided into 16 subgroups according to their features and activated proportionally to the length of the extensible part (NiTi) of the spring (Y). The force values measured were analyzed to determine SE rates and force plateaus, which were mathematically calculated. These plateaus were compared to those informed by the manufacturer. Analysis of variance was accomplished followed by Tukey post-hoc test to detect and analyze differences between groups. Results: All subgroups were SE at the activation of 400% of Y length, except for: subgroups 4B and 3A, which were SE at 300%; subgroups 4E and 4G, which were SE at 500%; and subgroup 3C, which was SE at 600%. Subgroup 3B did not show a SE behavior. Force plateaus depended on activation and, in some subgroups and some activations, were similar to the force informed. Conclusions: Most of the springs showed SE behavior at 400% of activation. Force plateaus are difficult to compare due to lack of information provided by manufacturers.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000300046
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512016000300046
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2177-6709.21.3.046-055.oar
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Dental Press International
publisher.none.fl_str_mv Dental Press International
dc.source.none.fl_str_mv Dental Press Journal of Orthodontics v.21 n.3 2016
reponame:Dental Press Journal of Orthodontics
instname:Dental Press International (DPI)
instacron:DPI
instname_str Dental Press International (DPI)
instacron_str DPI
institution DPI
reponame_str Dental Press Journal of Orthodontics
collection Dental Press Journal of Orthodontics
repository.name.fl_str_mv Dental Press Journal of Orthodontics - Dental Press International (DPI)
repository.mail.fl_str_mv artigos@dentalpress.com.br||davidnormando@hotmail.com
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