Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402021000400055 |
Resumo: | Abstract The purpose of this in vitro study was to evaluate the force decrease of different elastomeric chains after different times: initial, 10 minutes, 1 day, 28 days and after mechanical brushing. Twenty orthodontic elastomeric chains segments were utilized for each commercial brand. Initially, the elastomeric chain of 15mm long were immediate stretched up to 20 mm in an Instron and the force was measured in gf. After all specimens were placed stretched on rectangular acrylic jigs with distance of 20 mm, immersed in deionized water at 37oC for 10 minutes and the force (gf) was measured again. Five test measurements of remaining force were made at the following time intervals: initial, 10 minutes, 1 day, 28 days and mechanical brushing. After 28 days, the acrylic plates with the specimens were adapted in the mechanical brushing machines (MSCT 3) and the elastomeric chains were submitted to mechanical brushing and the force (gf) measure again. The force (gf) was submitted to mixed-model ANOVA and Sidak post-hoc test (α=0.05). A statistically significant reduction in the force was found for all orthodontic elastomeric chain types after 1 day, 28 days and mechanical brushing (p<0.05). Morelli and 3M Unitek elastomeric chains showed significantly higher force than Abzil and GAC (p<0.05) after 1 day, 28 days and mechanical brushing. In conclusion, the force delivered by all elastomeric chains decayed rapidly over time. Morelli and 3M Unitek elastomeric chains consistently had a significantly greater force after mechanic brushing, while GAC the lowest. |
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Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushingorthodonticsligationtooth movement techniquesAbstract The purpose of this in vitro study was to evaluate the force decrease of different elastomeric chains after different times: initial, 10 minutes, 1 day, 28 days and after mechanical brushing. Twenty orthodontic elastomeric chains segments were utilized for each commercial brand. Initially, the elastomeric chain of 15mm long were immediate stretched up to 20 mm in an Instron and the force was measured in gf. After all specimens were placed stretched on rectangular acrylic jigs with distance of 20 mm, immersed in deionized water at 37oC for 10 minutes and the force (gf) was measured again. Five test measurements of remaining force were made at the following time intervals: initial, 10 minutes, 1 day, 28 days and mechanical brushing. After 28 days, the acrylic plates with the specimens were adapted in the mechanical brushing machines (MSCT 3) and the elastomeric chains were submitted to mechanical brushing and the force (gf) measure again. The force (gf) was submitted to mixed-model ANOVA and Sidak post-hoc test (α=0.05). A statistically significant reduction in the force was found for all orthodontic elastomeric chain types after 1 day, 28 days and mechanical brushing (p<0.05). Morelli and 3M Unitek elastomeric chains showed significantly higher force than Abzil and GAC (p<0.05) after 1 day, 28 days and mechanical brushing. In conclusion, the force delivered by all elastomeric chains decayed rapidly over time. Morelli and 3M Unitek elastomeric chains consistently had a significantly greater force after mechanic brushing, while GAC the lowest.Fundação Odontológica de Ribeirão Preto2021-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402021000400055Brazilian Dental Journal v.32 n.4 2021reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440202104487info:eu-repo/semantics/openAccessSilva Chaves-Filho,Antonio Carlos daCosta,Ana RosaBorges,Lincoln Pires SousaSantos,Eduardo Cesar AlmadaCrepaldi,Marcus ViniciusVedovello,Silvia Amélia ScudelerCorrer,Américo BortolazzoCorrer-Sobrinho,Lourençoeng2021-11-09T00:00:00Zoai:scielo:S0103-64402021000400055Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2021-11-09T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
title |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
spellingShingle |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing Silva Chaves-Filho,Antonio Carlos da orthodontics ligation tooth movement techniques |
title_short |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
title_full |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
title_fullStr |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
title_full_unstemmed |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
title_sort |
Force Degradation of Elastomeric Chains after Storage Time and Mechanical Brushing |
author |
Silva Chaves-Filho,Antonio Carlos da |
author_facet |
Silva Chaves-Filho,Antonio Carlos da Costa,Ana Rosa Borges,Lincoln Pires Sousa Santos,Eduardo Cesar Almada Crepaldi,Marcus Vinicius Vedovello,Silvia Amélia Scudeler Correr,Américo Bortolazzo Correr-Sobrinho,Lourenço |
author_role |
author |
author2 |
Costa,Ana Rosa Borges,Lincoln Pires Sousa Santos,Eduardo Cesar Almada Crepaldi,Marcus Vinicius Vedovello,Silvia Amélia Scudeler Correr,Américo Bortolazzo Correr-Sobrinho,Lourenço |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva Chaves-Filho,Antonio Carlos da Costa,Ana Rosa Borges,Lincoln Pires Sousa Santos,Eduardo Cesar Almada Crepaldi,Marcus Vinicius Vedovello,Silvia Amélia Scudeler Correr,Américo Bortolazzo Correr-Sobrinho,Lourenço |
dc.subject.por.fl_str_mv |
orthodontics ligation tooth movement techniques |
topic |
orthodontics ligation tooth movement techniques |
description |
Abstract The purpose of this in vitro study was to evaluate the force decrease of different elastomeric chains after different times: initial, 10 minutes, 1 day, 28 days and after mechanical brushing. Twenty orthodontic elastomeric chains segments were utilized for each commercial brand. Initially, the elastomeric chain of 15mm long were immediate stretched up to 20 mm in an Instron and the force was measured in gf. After all specimens were placed stretched on rectangular acrylic jigs with distance of 20 mm, immersed in deionized water at 37oC for 10 minutes and the force (gf) was measured again. Five test measurements of remaining force were made at the following time intervals: initial, 10 minutes, 1 day, 28 days and mechanical brushing. After 28 days, the acrylic plates with the specimens were adapted in the mechanical brushing machines (MSCT 3) and the elastomeric chains were submitted to mechanical brushing and the force (gf) measure again. The force (gf) was submitted to mixed-model ANOVA and Sidak post-hoc test (α=0.05). A statistically significant reduction in the force was found for all orthodontic elastomeric chain types after 1 day, 28 days and mechanical brushing (p<0.05). Morelli and 3M Unitek elastomeric chains showed significantly higher force than Abzil and GAC (p<0.05) after 1 day, 28 days and mechanical brushing. In conclusion, the force delivered by all elastomeric chains decayed rapidly over time. Morelli and 3M Unitek elastomeric chains consistently had a significantly greater force after mechanic brushing, while GAC the lowest. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-01 |
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=S0103-64402021000400055 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402021000400055 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440202104487 |
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 |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.32 n.4 2021 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204096271745024 |