New Methodology to Evaluate Bond Strength of Root-End Filling Materials
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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=S0103-64402015000300288 |
Resumo: | This study evaluated the bond strength of root-end filling materials to root-end cavities using a new methodology. Twenty maxillary central incisors were subjected to biomechanical preparation (#80 hand file) and sectioned transversally 2 mm short of the apex and 4 mm coronally to this point. The root cylinders were embedded in acrylic resin and positioned at 45° to the horizontal plane for preparation of root-end cavities with a diamond ultrasonic retrotip. Two groups (n=10) were formed according to the root-end filling material: MTA and Super EBA. A gutta-percha cone (#80) was tug-backed at the limit between the canal and the root-end cavity. The cavity was filled and the gutta-percha cone was removed after complete setting of the sealer. The specimens were placed in an Instron machine with the root-end filling turned downwards. The push-out shaft was inserted in the space previously occupied by the gutta-percha cone and run at a crosshead speed of 1.0 mm/min for pushing out the root-end filling material. Data were analyzed by ANOVA (α=5%). Super EBA (6.03±1.31) presented higher bond strength (MPa) than MTA (1.81±0.45) (p>0.05). There was a predominance of cohesive failures for Super EBA and mixed for MTA. The protocol of specimen preparation is effective and introduces a specific methodology for assessing bond strength of root-end filling materials to dentin. Among the materials, Super EBA presented the highest bond strength. |
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Brazilian Dental Journal |
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New Methodology to Evaluate Bond Strength of Root-End Filling Materialsendodonticsroot-end filling materialsbond strengthpush-outThis study evaluated the bond strength of root-end filling materials to root-end cavities using a new methodology. Twenty maxillary central incisors were subjected to biomechanical preparation (#80 hand file) and sectioned transversally 2 mm short of the apex and 4 mm coronally to this point. The root cylinders were embedded in acrylic resin and positioned at 45° to the horizontal plane for preparation of root-end cavities with a diamond ultrasonic retrotip. Two groups (n=10) were formed according to the root-end filling material: MTA and Super EBA. A gutta-percha cone (#80) was tug-backed at the limit between the canal and the root-end cavity. The cavity was filled and the gutta-percha cone was removed after complete setting of the sealer. The specimens were placed in an Instron machine with the root-end filling turned downwards. The push-out shaft was inserted in the space previously occupied by the gutta-percha cone and run at a crosshead speed of 1.0 mm/min for pushing out the root-end filling material. Data were analyzed by ANOVA (α=5%). Super EBA (6.03±1.31) presented higher bond strength (MPa) than MTA (1.81±0.45) (p>0.05). There was a predominance of cohesive failures for Super EBA and mixed for MTA. The protocol of specimen preparation is effective and introduces a specific methodology for assessing bond strength of root-end filling materials to dentin. Among the materials, Super EBA presented the highest bond strength.Fundação Odontológica de Ribeirão Preto2015-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300288Brazilian Dental Journal v.26 n.3 2015reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201300189info:eu-repo/semantics/openAccessMarques,Jorge Henrique StefaneliSilva-Sousa,Yara Teresinha CorrêaRached-Júnior,Fuad Jacob AbiMazzi-Chaves,Jardel FranciscoMiranda,Carlos Eduardo SaraivaSilva,Silvio Rocha Correa daSteier,LiviuSousa-Neto,Manoel Damiãoeng2015-07-14T00:00:00Zoai:scielo:S0103-64402015000300288Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2015-07-14T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
title |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
spellingShingle |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials Marques,Jorge Henrique Stefaneli endodontics root-end filling materials bond strength push-out |
title_short |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
title_full |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
title_fullStr |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
title_full_unstemmed |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
title_sort |
New Methodology to Evaluate Bond Strength of Root-End Filling Materials |
author |
Marques,Jorge Henrique Stefaneli |
author_facet |
Marques,Jorge Henrique Stefaneli Silva-Sousa,Yara Teresinha Corrêa Rached-Júnior,Fuad Jacob Abi Mazzi-Chaves,Jardel Francisco Miranda,Carlos Eduardo Saraiva Silva,Silvio Rocha Correa da Steier,Liviu Sousa-Neto,Manoel Damião |
author_role |
author |
author2 |
Silva-Sousa,Yara Teresinha Corrêa Rached-Júnior,Fuad Jacob Abi Mazzi-Chaves,Jardel Francisco Miranda,Carlos Eduardo Saraiva Silva,Silvio Rocha Correa da Steier,Liviu Sousa-Neto,Manoel Damião |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Marques,Jorge Henrique Stefaneli Silva-Sousa,Yara Teresinha Corrêa Rached-Júnior,Fuad Jacob Abi Mazzi-Chaves,Jardel Francisco Miranda,Carlos Eduardo Saraiva Silva,Silvio Rocha Correa da Steier,Liviu Sousa-Neto,Manoel Damião |
dc.subject.por.fl_str_mv |
endodontics root-end filling materials bond strength push-out |
topic |
endodontics root-end filling materials bond strength push-out |
description |
This study evaluated the bond strength of root-end filling materials to root-end cavities using a new methodology. Twenty maxillary central incisors were subjected to biomechanical preparation (#80 hand file) and sectioned transversally 2 mm short of the apex and 4 mm coronally to this point. The root cylinders were embedded in acrylic resin and positioned at 45° to the horizontal plane for preparation of root-end cavities with a diamond ultrasonic retrotip. Two groups (n=10) were formed according to the root-end filling material: MTA and Super EBA. A gutta-percha cone (#80) was tug-backed at the limit between the canal and the root-end cavity. The cavity was filled and the gutta-percha cone was removed after complete setting of the sealer. The specimens were placed in an Instron machine with the root-end filling turned downwards. The push-out shaft was inserted in the space previously occupied by the gutta-percha cone and run at a crosshead speed of 1.0 mm/min for pushing out the root-end filling material. Data were analyzed by ANOVA (α=5%). Super EBA (6.03±1.31) presented higher bond strength (MPa) than MTA (1.81±0.45) (p>0.05). There was a predominance of cohesive failures for Super EBA and mixed for MTA. The protocol of specimen preparation is effective and introduces a specific methodology for assessing bond strength of root-end filling materials to dentin. Among the materials, Super EBA presented the highest bond strength. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06-01 |
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=S0103-64402015000300288 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300288 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440201300189 |
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.26 n.3 2015 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_ |
1754204093550690304 |