Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000500027 |
Resumo: | OBJECTIVE: This study evaluated the wear in the apical third of simulate canals after preparation with ProTaper Universal Rotary System. MATERIAL AND METHODS: 24 sets of instruments were used in 24 simulated canals in transparent epoxy resin blocks with degree of curvature of either 20°or 40°. The canals were photographed preoperatively and after preparation of the apical stop with ProTaper F3, F4 and F5 instruments. The initial and final images were exported to Adobe Photoshop® software and superimposed to detect the root canal wall differences (in mm) between them, in two points located 1 (A) and 5 (B) mm from the point where the working length was established. Data were subjected to analysis of variance to verify the existence of interaction among the factors: canal curvature, instrument size and curve location. Significant level was set at 5%. RESULTS: Regardless of the location and the canal curvature, F4 and F5 instruments produced the greatest wear (p<0.05). CONCLUSIONS: There was a deviation from the original pathway towards the outside of the root curvature in both analyzed points. All instruments produced canal transportation, but the F4 and F5 instruments produced more than the other instruments, and should thus be used with care in curved canals. |
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oai:scielo:S1678-77572009000500027 |
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USP-17 |
network_name_str |
Journal of applied oral science (Online) |
repository_id_str |
|
spelling |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal systemCanal transportationCurved root canalProTaper Universal SystemRotary instrumentsWearOBJECTIVE: This study evaluated the wear in the apical third of simulate canals after preparation with ProTaper Universal Rotary System. MATERIAL AND METHODS: 24 sets of instruments were used in 24 simulated canals in transparent epoxy resin blocks with degree of curvature of either 20°or 40°. The canals were photographed preoperatively and after preparation of the apical stop with ProTaper F3, F4 and F5 instruments. The initial and final images were exported to Adobe Photoshop® software and superimposed to detect the root canal wall differences (in mm) between them, in two points located 1 (A) and 5 (B) mm from the point where the working length was established. Data were subjected to analysis of variance to verify the existence of interaction among the factors: canal curvature, instrument size and curve location. Significant level was set at 5%. RESULTS: Regardless of the location and the canal curvature, F4 and F5 instruments produced the greatest wear (p<0.05). CONCLUSIONS: There was a deviation from the original pathway towards the outside of the root curvature in both analyzed points. All instruments produced canal transportation, but the F4 and F5 instruments produced more than the other instruments, and should thus be used with care in curved canals.Faculdade De Odontologia De Bauru - USP2009-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000500027Journal of Applied Oral Science v.17 n.5 2009reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572009000500027info:eu-repo/semantics/openAccessSilva,Kathrein Tapia daGrazziotin-Soares,RenataLimongi,OrlandoIrala,Luis Eduardo DuarteSalles,Alexandre Azevedoeng2009-11-12T00:00:00Zoai:scielo:S1678-77572009000500027Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2009-11-12T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
title |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
spellingShingle |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system Silva,Kathrein Tapia da Canal transportation Curved root canal ProTaper Universal System Rotary instruments Wear |
title_short |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
title_full |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
title_fullStr |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
title_full_unstemmed |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
title_sort |
Wear promoted in the apical third of simulated canals after instrumentation with protaper universal system |
author |
Silva,Kathrein Tapia da |
author_facet |
Silva,Kathrein Tapia da Grazziotin-Soares,Renata Limongi,Orlando Irala,Luis Eduardo Duarte Salles,Alexandre Azevedo |
author_role |
author |
author2 |
Grazziotin-Soares,Renata Limongi,Orlando Irala,Luis Eduardo Duarte Salles,Alexandre Azevedo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva,Kathrein Tapia da Grazziotin-Soares,Renata Limongi,Orlando Irala,Luis Eduardo Duarte Salles,Alexandre Azevedo |
dc.subject.por.fl_str_mv |
Canal transportation Curved root canal ProTaper Universal System Rotary instruments Wear |
topic |
Canal transportation Curved root canal ProTaper Universal System Rotary instruments Wear |
description |
OBJECTIVE: This study evaluated the wear in the apical third of simulate canals after preparation with ProTaper Universal Rotary System. MATERIAL AND METHODS: 24 sets of instruments were used in 24 simulated canals in transparent epoxy resin blocks with degree of curvature of either 20°or 40°. The canals were photographed preoperatively and after preparation of the apical stop with ProTaper F3, F4 and F5 instruments. The initial and final images were exported to Adobe Photoshop® software and superimposed to detect the root canal wall differences (in mm) between them, in two points located 1 (A) and 5 (B) mm from the point where the working length was established. Data were subjected to analysis of variance to verify the existence of interaction among the factors: canal curvature, instrument size and curve location. Significant level was set at 5%. RESULTS: Regardless of the location and the canal curvature, F4 and F5 instruments produced the greatest wear (p<0.05). CONCLUSIONS: There was a deviation from the original pathway towards the outside of the root curvature in both analyzed points. All instruments produced canal transportation, but the F4 and F5 instruments produced more than the other instruments, and should thus be used with care in curved canals. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-10-01 |
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=S1678-77572009000500027 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000500027 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1678-77572009000500027 |
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 |
Faculdade De Odontologia De Bauru - USP |
publisher.none.fl_str_mv |
Faculdade De Odontologia De Bauru - USP |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science v.17 n.5 2009 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1748936435645284352 |