Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?

Detalhes bibliográficos
Autor(a) principal: Rino Neto,José
Data de Publicação: 2013
Outros Autores: Queiroz,Gilberto Vilanova, Paiva,João Batista de, Ballester,Rafael Yagüe
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=S2176-94512013000100018
Resumo: OBJECTIVE: To compare hysteresis, activation and deactivation forces produced by first-order deformation of Contour 0.014-in NiTi wire (Aditek, Brazil) in four brands of self-ligating brackets: Damon MX, Easy Clip, Smart Clip and In-Ovation. METHODS: Activation and deactivation forces were measured in an Instron universal tensile machine at 3 mm/minute speed to a total displacement of 4 mm. Tests were repeated eight times for each bracket/wire combination. Statistical analysis comprised ANOVA and Tukey's multiple comparisons test. RESULTS: Using a 4-mm deformation, mean activation forces increased in the following order: Damon = 222 gf, Easy Clip = 228 gf, In-Ovation = 240 gf and Smart Clip = 306 gf. The same order was observed for mean hysteresis values, i.e., 128 gf, 140 gf, 150 gf and 206 gf, respectively. The respective values of deactivation forces for the Damon, Easy Clip, In-Ovation and Smart Clip brackets were 94 gf, 88 gf, 90 gf and 100 gf. CONCLUSIONS: Brackets with higher activation forces were accompanied by higher hysteresis values, which resulted in clinically similar deactivation forces, regardless of the type of self-ligating brackets used.
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spelling Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?Corrective orthodonticsOrthodontic bracketsOrthodontic wiresOBJECTIVE: To compare hysteresis, activation and deactivation forces produced by first-order deformation of Contour 0.014-in NiTi wire (Aditek, Brazil) in four brands of self-ligating brackets: Damon MX, Easy Clip, Smart Clip and In-Ovation. METHODS: Activation and deactivation forces were measured in an Instron universal tensile machine at 3 mm/minute speed to a total displacement of 4 mm. Tests were repeated eight times for each bracket/wire combination. Statistical analysis comprised ANOVA and Tukey's multiple comparisons test. RESULTS: Using a 4-mm deformation, mean activation forces increased in the following order: Damon = 222 gf, Easy Clip = 228 gf, In-Ovation = 240 gf and Smart Clip = 306 gf. The same order was observed for mean hysteresis values, i.e., 128 gf, 140 gf, 150 gf and 206 gf, respectively. The respective values of deactivation forces for the Damon, Easy Clip, In-Ovation and Smart Clip brackets were 94 gf, 88 gf, 90 gf and 100 gf. CONCLUSIONS: Brackets with higher activation forces were accompanied by higher hysteresis values, which resulted in clinically similar deactivation forces, regardless of the type of self-ligating brackets used.Dental Press International2013-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512013000100018Dental Press Journal of Orthodontics v.18 n.1 2013reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/S2176-94512013000100018info:eu-repo/semantics/openAccessRino Neto,JoséQueiroz,Gilberto VilanovaPaiva,João Batista deBallester,Rafael Yagüeeng2013-05-15T00:00:00Zoai:scielo:S2176-94512013000100018Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2013-05-15T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false
dc.title.none.fl_str_mv Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
title Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
spellingShingle Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
Rino Neto,José
Corrective orthodontics
Orthodontic brackets
Orthodontic wires
title_short Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
title_full Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
title_fullStr Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
title_full_unstemmed Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
title_sort Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?
author Rino Neto,José
author_facet Rino Neto,José
Queiroz,Gilberto Vilanova
Paiva,João Batista de
Ballester,Rafael Yagüe
author_role author
author2 Queiroz,Gilberto Vilanova
Paiva,João Batista de
Ballester,Rafael Yagüe
author2_role author
author
author
dc.contributor.author.fl_str_mv Rino Neto,José
Queiroz,Gilberto Vilanova
Paiva,João Batista de
Ballester,Rafael Yagüe
dc.subject.por.fl_str_mv Corrective orthodontics
Orthodontic brackets
Orthodontic wires
topic Corrective orthodontics
Orthodontic brackets
Orthodontic wires
description OBJECTIVE: To compare hysteresis, activation and deactivation forces produced by first-order deformation of Contour 0.014-in NiTi wire (Aditek, Brazil) in four brands of self-ligating brackets: Damon MX, Easy Clip, Smart Clip and In-Ovation. METHODS: Activation and deactivation forces were measured in an Instron universal tensile machine at 3 mm/minute speed to a total displacement of 4 mm. Tests were repeated eight times for each bracket/wire combination. Statistical analysis comprised ANOVA and Tukey's multiple comparisons test. RESULTS: Using a 4-mm deformation, mean activation forces increased in the following order: Damon = 222 gf, Easy Clip = 228 gf, In-Ovation = 240 gf and Smart Clip = 306 gf. The same order was observed for mean hysteresis values, i.e., 128 gf, 140 gf, 150 gf and 206 gf, respectively. The respective values of deactivation forces for the Damon, Easy Clip, In-Ovation and Smart Clip brackets were 94 gf, 88 gf, 90 gf and 100 gf. CONCLUSIONS: Brackets with higher activation forces were accompanied by higher hysteresis values, which resulted in clinically similar deactivation forces, regardless of the type of self-ligating brackets used.
publishDate 2013
dc.date.none.fl_str_mv 2013-02-01
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=S2176-94512013000100018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512013000100018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2176-94512013000100018
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.18 n.1 2013
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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