Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Odontologia da UNESP |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772020000100406 |
Resumo: | Abstract Introduction The sterilization and disinfection procedures should be adapted to the chemical profile of the metal alloys present in the instruments. Objective This study aimed to perform a micrographic assessment on the surface characteristics of the widia of orthodontic pliers with two alloy compositions subjected to the action of 0.2% peracetic acid and intensive use. Material and method Twenty distal cutting pliers were divided into two groups (n=10) according to widia composition (%wt): W1- 85% to 87% of tungsten carbide (TC) and other components in the proportion of 13% to 15% and W2 – 87.5% to 88.5% of tungsten carbide and 11.5% to 12.5% for other components. All the pliers were assessed in a stereoscopic magnifying glass (32x) after three treatments: before use (T0); after cutting 100 segments of rectangular stainless-steel wires – intensive use (T1); and after 100 sterilization cycles in 0.2% peracetic acid and intensive use (T2). The cutting sites of all pliers were standardized. Widia regions were defined by line “A” representing T1 and line “B” representing T2. A frequency distribution table and Fisher’s exact test (α=0.05) was performed. We assessed two widia from each composition and treatment in SEM and energy-dispersive X-ray spectroscopy (EDS/SEM). Result The results showed that W1 pliers presented significantly fewer defects after the sterilization cycles with peracetic acid and intensive use than W2 pliers (p=0.0198). There were no differences between both pliers after intensive use (p=1.000). Conclusion The SEM images and EDS analyses showed changes in widia surfaces after the different treatments. Widia composition affected the resistance of the orthodontic pliers after sterilization cycles with 0.2% peracetic acid and intensive use. |
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Revista de Odontologia da UNESP |
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Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive useSterilizationorthodonticsperacetic acidAbstract Introduction The sterilization and disinfection procedures should be adapted to the chemical profile of the metal alloys present in the instruments. Objective This study aimed to perform a micrographic assessment on the surface characteristics of the widia of orthodontic pliers with two alloy compositions subjected to the action of 0.2% peracetic acid and intensive use. Material and method Twenty distal cutting pliers were divided into two groups (n=10) according to widia composition (%wt): W1- 85% to 87% of tungsten carbide (TC) and other components in the proportion of 13% to 15% and W2 – 87.5% to 88.5% of tungsten carbide and 11.5% to 12.5% for other components. All the pliers were assessed in a stereoscopic magnifying glass (32x) after three treatments: before use (T0); after cutting 100 segments of rectangular stainless-steel wires – intensive use (T1); and after 100 sterilization cycles in 0.2% peracetic acid and intensive use (T2). The cutting sites of all pliers were standardized. Widia regions were defined by line “A” representing T1 and line “B” representing T2. A frequency distribution table and Fisher’s exact test (α=0.05) was performed. We assessed two widia from each composition and treatment in SEM and energy-dispersive X-ray spectroscopy (EDS/SEM). Result The results showed that W1 pliers presented significantly fewer defects after the sterilization cycles with peracetic acid and intensive use than W2 pliers (p=0.0198). There were no differences between both pliers after intensive use (p=1.000). Conclusion The SEM images and EDS analyses showed changes in widia surfaces after the different treatments. Widia composition affected the resistance of the orthodontic pliers after sterilization cycles with 0.2% peracetic acid and intensive use.Universidade Estadual Paulista Júlio de Mesquita Filho2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772020000100406Revista de Odontologia da UNESP v.49 2020reponame:Revista de Odontologia da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1590/1807-2577.02120info:eu-repo/semantics/openAccessMARCIAL,Érika ZoliNEVES,José GuilhermeCORRER-SOBRINHO,LourençoMENEZES,Carolina Carmo deGODOI,Ana Paula Terossi deVEDOVELLO FILHO,MárioCOSTA,Ana Rosaeng2020-07-17T00:00:00Zoai:scielo:S1807-25772020000100406Revistahttps://www.revodontolunesp.com.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||adriana@foar.unesp.br1807-25770101-1774opendoar:2020-07-17T00:00Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
title |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
spellingShingle |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use MARCIAL,Érika Zoli Sterilization orthodontics peracetic acid |
title_short |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
title_full |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
title_fullStr |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
title_full_unstemmed |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
title_sort |
Micrographic evaluation of different widia compositions of orthodontic pliers submitted to peracetic acid and intensive use |
author |
MARCIAL,Érika Zoli |
author_facet |
MARCIAL,Érika Zoli NEVES,José Guilherme CORRER-SOBRINHO,Lourenço MENEZES,Carolina Carmo de GODOI,Ana Paula Terossi de VEDOVELLO FILHO,Mário COSTA,Ana Rosa |
author_role |
author |
author2 |
NEVES,José Guilherme CORRER-SOBRINHO,Lourenço MENEZES,Carolina Carmo de GODOI,Ana Paula Terossi de VEDOVELLO FILHO,Mário COSTA,Ana Rosa |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
MARCIAL,Érika Zoli NEVES,José Guilherme CORRER-SOBRINHO,Lourenço MENEZES,Carolina Carmo de GODOI,Ana Paula Terossi de VEDOVELLO FILHO,Mário COSTA,Ana Rosa |
dc.subject.por.fl_str_mv |
Sterilization orthodontics peracetic acid |
topic |
Sterilization orthodontics peracetic acid |
description |
Abstract Introduction The sterilization and disinfection procedures should be adapted to the chemical profile of the metal alloys present in the instruments. Objective This study aimed to perform a micrographic assessment on the surface characteristics of the widia of orthodontic pliers with two alloy compositions subjected to the action of 0.2% peracetic acid and intensive use. Material and method Twenty distal cutting pliers were divided into two groups (n=10) according to widia composition (%wt): W1- 85% to 87% of tungsten carbide (TC) and other components in the proportion of 13% to 15% and W2 – 87.5% to 88.5% of tungsten carbide and 11.5% to 12.5% for other components. All the pliers were assessed in a stereoscopic magnifying glass (32x) after three treatments: before use (T0); after cutting 100 segments of rectangular stainless-steel wires – intensive use (T1); and after 100 sterilization cycles in 0.2% peracetic acid and intensive use (T2). The cutting sites of all pliers were standardized. Widia regions were defined by line “A” representing T1 and line “B” representing T2. A frequency distribution table and Fisher’s exact test (α=0.05) was performed. We assessed two widia from each composition and treatment in SEM and energy-dispersive X-ray spectroscopy (EDS/SEM). Result The results showed that W1 pliers presented significantly fewer defects after the sterilization cycles with peracetic acid and intensive use than W2 pliers (p=0.0198). There were no differences between both pliers after intensive use (p=1.000). Conclusion The SEM images and EDS analyses showed changes in widia surfaces after the different treatments. Widia composition affected the resistance of the orthodontic pliers after sterilization cycles with 0.2% peracetic acid and intensive use. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S1807-25772020000100406 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772020000100406 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-2577.02120 |
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 |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
Revista de Odontologia da UNESP v.49 2020 reponame:Revista de Odontologia da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Revista de Odontologia da UNESP |
collection |
Revista de Odontologia da UNESP |
repository.name.fl_str_mv |
Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
||adriana@foar.unesp.br |
_version_ |
1748958561157775360 |