Evaluation of deflection forces of orthodontic wires with different ligation types

Bibliographic Details
Main Author: HENRIQUES,José Fernando Castanha
Publication Date: 2017
Other Authors: HIGA,Rodrigo Hitoshi, SEMENARA,Nayara Thiago, JANSON,Guilherme, FERNANDES,Thais Maria Freire, SATHLER,Renata
Format: Article
Language: eng
Source: Brazilian Oral Research
Download full: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242017000100247
Summary: Abstract The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a 8-shaped elastomeric ligature (8SEL) and a metal ligature (ML) were tested. A clinical simulation device was created especially for this study and forces were measured with an Instron Universal Testing Machine. For the testing procedure, the block representing the maxillary right central incisor was moved 0.5 and 1 mm bucco-lingually at a constant speed of 2 mm/min, and the forces released by the wires were recorded, in accordance with the ISO 15841 guidelines. In general, the RSEL showed lighter forces, while 8SEL and ML showed higher values. At the 0.5 mm deflection, the 8SEL presented the greatest force, but at the 1.0 mm deflection the ML had a statistically similar force. Based on our evaluations, to obtain lighter forces, the thermally activated nickel-titanium wire with the RSEL are recommended, while the steel wire with the 8SEL or the ML are recommended when larger forces are desired. The ML exhibited the highest force increase with increased deflections, compared with the elastomeric ligatures.
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spelling Evaluation of deflection forces of orthodontic wires with different ligation typesOrthodontic WiresAlloysOrthodonticsFrictionOrthodontic BracketsElastomersAbstract The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a 8-shaped elastomeric ligature (8SEL) and a metal ligature (ML) were tested. A clinical simulation device was created especially for this study and forces were measured with an Instron Universal Testing Machine. For the testing procedure, the block representing the maxillary right central incisor was moved 0.5 and 1 mm bucco-lingually at a constant speed of 2 mm/min, and the forces released by the wires were recorded, in accordance with the ISO 15841 guidelines. In general, the RSEL showed lighter forces, while 8SEL and ML showed higher values. At the 0.5 mm deflection, the 8SEL presented the greatest force, but at the 1.0 mm deflection the ML had a statistically similar force. Based on our evaluations, to obtain lighter forces, the thermally activated nickel-titanium wire with the RSEL are recommended, while the steel wire with the 8SEL or the ML are recommended when larger forces are desired. The ML exhibited the highest force increase with increased deflections, compared with the elastomeric ligatures.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242017000100247Brazilian Oral Research v.31 2017reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/1807-3107bor-2017.vol31.0049info:eu-repo/semantics/openAccessHENRIQUES,José Fernando CastanhaHIGA,Rodrigo HitoshiSEMENARA,Nayara ThiagoJANSON,GuilhermeFERNANDES,Thais Maria FreireSATHLER,Renataeng2017-06-29T00:00:00Zoai:scielo:S1806-83242017000100247Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2017-06-29T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Evaluation of deflection forces of orthodontic wires with different ligation types
title Evaluation of deflection forces of orthodontic wires with different ligation types
spellingShingle Evaluation of deflection forces of orthodontic wires with different ligation types
HENRIQUES,José Fernando Castanha
Orthodontic Wires
Alloys
Orthodontics
Friction
Orthodontic Brackets
Elastomers
title_short Evaluation of deflection forces of orthodontic wires with different ligation types
title_full Evaluation of deflection forces of orthodontic wires with different ligation types
title_fullStr Evaluation of deflection forces of orthodontic wires with different ligation types
title_full_unstemmed Evaluation of deflection forces of orthodontic wires with different ligation types
title_sort Evaluation of deflection forces of orthodontic wires with different ligation types
author HENRIQUES,José Fernando Castanha
author_facet HENRIQUES,José Fernando Castanha
HIGA,Rodrigo Hitoshi
SEMENARA,Nayara Thiago
JANSON,Guilherme
FERNANDES,Thais Maria Freire
SATHLER,Renata
author_role author
author2 HIGA,Rodrigo Hitoshi
SEMENARA,Nayara Thiago
JANSON,Guilherme
FERNANDES,Thais Maria Freire
SATHLER,Renata
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv HENRIQUES,José Fernando Castanha
HIGA,Rodrigo Hitoshi
SEMENARA,Nayara Thiago
JANSON,Guilherme
FERNANDES,Thais Maria Freire
SATHLER,Renata
dc.subject.por.fl_str_mv Orthodontic Wires
Alloys
Orthodontics
Friction
Orthodontic Brackets
Elastomers
topic Orthodontic Wires
Alloys
Orthodontics
Friction
Orthodontic Brackets
Elastomers
description Abstract The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a 8-shaped elastomeric ligature (8SEL) and a metal ligature (ML) were tested. A clinical simulation device was created especially for this study and forces were measured with an Instron Universal Testing Machine. For the testing procedure, the block representing the maxillary right central incisor was moved 0.5 and 1 mm bucco-lingually at a constant speed of 2 mm/min, and the forces released by the wires were recorded, in accordance with the ISO 15841 guidelines. In general, the RSEL showed lighter forces, while 8SEL and ML showed higher values. At the 0.5 mm deflection, the 8SEL presented the greatest force, but at the 1.0 mm deflection the ML had a statistically similar force. Based on our evaluations, to obtain lighter forces, the thermally activated nickel-titanium wire with the RSEL are recommended, while the steel wire with the 8SEL or the ML are recommended when larger forces are desired. The ML exhibited the highest force increase with increased deflections, compared with the elastomeric ligatures.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
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=S1806-83242017000100247
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242017000100247
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-3107bor-2017.vol31.0049
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 Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.31 2017
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
institution SBPQO
reponame_str Brazilian Oral Research
collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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