Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine

Detalhes bibliográficos
Autor(a) principal: Ferreira, Josemar Martins
Data de Publicação: 2016
Outros Autores: Renovato, Sara Rodrigues, Santana, Fernanda Ribeiro, Decurcio, Daniel de Almeida, Soares, Carlos José, Estrela, Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/20490
Resumo: Objective: This study evaluated the effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine.Methods: Seventy bovine teeth were divided into 7 experimental groups (n=10) according to the bleaching agent used: SpH – sodium perborate + 20% hydrogen peroxide; SpW – sodium perborate + distilled water; Cp37 – 37% carbamide peroxide; Cp16 – 16% carbamide peroxide; Cp10 – 10% carbamide peroxide; H – 35% hydrogen peroxide; C – no bleaching agent (control). After bleaching, posts were cemented with a self-adhesive resin cement (RelyX U100) and the roots were crosssectioned to obtain two discs from each third. The posts underwent micropush-out testing, and bond strength values (MPa) were analyzed using ANOVA in a split-plot arrangement and the Tukey test (p<0.05). Failure mode was evaluated under confocal microscopy.Results: There were no significant differences between the control and bleaching agent groups. Bond strength was greater in the cervical third of the 16% carbamide peroxide (Cp16) group than in the sodium perborate + 20% hydrogen peroxide (SpH) group. The cervical third had a higher bond strength than the apical third in the 10% carbamide peroxide (Cp10), 16% carbamide peroxide (Cp16) and sodium perborate + distilled water (SpW) groups, and no significant differences in the other groups. Adhesive cement-dentine failure was prevalent in all groups.Conclusion: The use of internal bleaching agents did not decrease the bond strength of glass fiber posts to root dentin.
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spelling Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentineEfeito de agentes clareadores internos na resistência de união de pinos de fibra de vidro com a dentina radicularInternal bleachingGlass fiber postsBondingClareamento internoPinos de fibra de vidroAdesãoObjective: This study evaluated the effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine.Methods: Seventy bovine teeth were divided into 7 experimental groups (n=10) according to the bleaching agent used: SpH – sodium perborate + 20% hydrogen peroxide; SpW – sodium perborate + distilled water; Cp37 – 37% carbamide peroxide; Cp16 – 16% carbamide peroxide; Cp10 – 10% carbamide peroxide; H – 35% hydrogen peroxide; C – no bleaching agent (control). After bleaching, posts were cemented with a self-adhesive resin cement (RelyX U100) and the roots were crosssectioned to obtain two discs from each third. The posts underwent micropush-out testing, and bond strength values (MPa) were analyzed using ANOVA in a split-plot arrangement and the Tukey test (p<0.05). Failure mode was evaluated under confocal microscopy.Results: There were no significant differences between the control and bleaching agent groups. Bond strength was greater in the cervical third of the 16% carbamide peroxide (Cp16) group than in the sodium perborate + 20% hydrogen peroxide (SpH) group. The cervical third had a higher bond strength than the apical third in the 10% carbamide peroxide (Cp10), 16% carbamide peroxide (Cp16) and sodium perborate + distilled water (SpW) groups, and no significant differences in the other groups. Adhesive cement-dentine failure was prevalent in all groups.Conclusion: The use of internal bleaching agents did not decrease the bond strength of glass fiber posts to root dentin.Objetivo: Este estudo avaliou o efeito de agentes clareadores internos na resistência de união entre pinos de fibra de vidro e a dentina radicular.Métodos: Setenta dentes bovinos foram divididos em 7 grupos experimentais (n=10) de acordo com o agente de clareamento usado: SpH – perborato + 20% de peróxido de hidrogénio e sódio; SPW – perborato de sódio + água destilada; Cp37 – 37% de peróxido de carbamida; CP16 – 16% de peróxido de carbamida; CP10 – 10% de peróxido de carbamida; H – 35% de peróxido de hidrogénio; C – nenhum agente clareador (controle). Após oclareamento, pinos foram cimentados com cimento resinoso auto-adesivo (RelyX U100) e as raízes foram seccionadas transversalmente para se obter dois discos de cada terço. As pinos foram submetidos a testes micropush-out, e os valores de resistência de união (MPa) foram analisados por ANOVAde duas vias, e o teste de Tukey (p<0,05). Falhas foram avaliada em microscopia confocal.Resultados: Não houve diferenças significativas entre os grupos de agentes de controle e de clareamento. A resistência de união foi maior no terço cervical do grupo de peróxido de carbamida 16% (CP16) do que no grupo perborato de sódio + peróxido de hidrogênio 20% (SPH). O terço cervical tinha uma força de ligação superior ao terço apical do peróxido de carbamida a 10% (CP10), 16% de peróxido de carbamida (CP16) e perborato de sódio + grupos água destilada (SPW), e não houve diferenças significativas nos outros grupos. Falhas adesivas de cimento-dentina foi prevalente em todos os grupos.Conclusão: O uso de agentes clareadores internos não diminuiu a resistência de união de pinos de fibra de vidro à dentina radicular.EDIPUCRS - Editora Universitária da PUCRS2016-12-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2049010.15448/1980-6523.2016.3.20490Revista Odonto Ciência; Vol. 31 No. 3 (2016); 120-125Revista Odonto Ciência; v. 31 n. 3 (2016); 120-1251980-65230102-946010.15448/1980-6523.2016.3reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/20490/15585Copyright (c) 2017 Revista Odonto Ciência (Journal of Dental Science)info:eu-repo/semantics/openAccessFerreira, Josemar MartinsRenovato, Sara RodriguesSantana, Fernanda RibeiroDecurcio, Daniel de AlmeidaSoares, Carlos JoséEstrela, Carlos2017-05-09T21:52:00Zoai:ojs.revistaseletronicas.pucrs.br:article/20490Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2017-05-09T21:52Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
Efeito de agentes clareadores internos na resistência de união de pinos de fibra de vidro com a dentina radicular
title Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
spellingShingle Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
Ferreira, Josemar Martins
Internal bleaching
Glass fiber posts
Bonding
Clareamento interno
Pinos de fibra de vidro
Adesão
title_short Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
title_full Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
title_fullStr Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
title_full_unstemmed Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
title_sort Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine
author Ferreira, Josemar Martins
author_facet Ferreira, Josemar Martins
Renovato, Sara Rodrigues
Santana, Fernanda Ribeiro
Decurcio, Daniel de Almeida
Soares, Carlos José
Estrela, Carlos
author_role author
author2 Renovato, Sara Rodrigues
Santana, Fernanda Ribeiro
Decurcio, Daniel de Almeida
Soares, Carlos José
Estrela, Carlos
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Josemar Martins
Renovato, Sara Rodrigues
Santana, Fernanda Ribeiro
Decurcio, Daniel de Almeida
Soares, Carlos José
Estrela, Carlos
dc.subject.por.fl_str_mv Internal bleaching
Glass fiber posts
Bonding
Clareamento interno
Pinos de fibra de vidro
Adesão
topic Internal bleaching
Glass fiber posts
Bonding
Clareamento interno
Pinos de fibra de vidro
Adesão
description Objective: This study evaluated the effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine.Methods: Seventy bovine teeth were divided into 7 experimental groups (n=10) according to the bleaching agent used: SpH – sodium perborate + 20% hydrogen peroxide; SpW – sodium perborate + distilled water; Cp37 – 37% carbamide peroxide; Cp16 – 16% carbamide peroxide; Cp10 – 10% carbamide peroxide; H – 35% hydrogen peroxide; C – no bleaching agent (control). After bleaching, posts were cemented with a self-adhesive resin cement (RelyX U100) and the roots were crosssectioned to obtain two discs from each third. The posts underwent micropush-out testing, and bond strength values (MPa) were analyzed using ANOVA in a split-plot arrangement and the Tukey test (p<0.05). Failure mode was evaluated under confocal microscopy.Results: There were no significant differences between the control and bleaching agent groups. Bond strength was greater in the cervical third of the 16% carbamide peroxide (Cp16) group than in the sodium perborate + 20% hydrogen peroxide (SpH) group. The cervical third had a higher bond strength than the apical third in the 10% carbamide peroxide (Cp10), 16% carbamide peroxide (Cp16) and sodium perborate + distilled water (SpW) groups, and no significant differences in the other groups. Adhesive cement-dentine failure was prevalent in all groups.Conclusion: The use of internal bleaching agents did not decrease the bond strength of glass fiber posts to root dentin.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/20490
10.15448/1980-6523.2016.3.20490
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/20490
identifier_str_mv 10.15448/1980-6523.2016.3.20490
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/20490/15585
dc.rights.driver.fl_str_mv Copyright (c) 2017 Revista Odonto Ciência (Journal of Dental Science)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Revista Odonto Ciência (Journal of Dental Science)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 31 No. 3 (2016); 120-125
Revista Odonto Ciência; v. 31 n. 3 (2016); 120-125
1980-6523
0102-9460
10.15448/1980-6523.2016.3
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
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