Microtensile bond strength evaluation of self-etch adhesives to primary dentin

Detalhes bibliográficos
Autor(a) principal: Torres, Sofia Raquel Mendes
Data de Publicação: 2013
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/36680
Resumo: Trabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.
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spelling Microtensile bond strength evaluation of self-etch adhesives to primary dentinBond strengthAdhesivesSelf-etchDeciduous teethMicrotensileTrabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.Introduction: A considerable research of adhesive systems is responsible for many publications about the behavior of these materials. While the dentin bond strength of permanent teeth is assessed quite often, a significantly smaller number of researches was carried on aiming to test the dentin bond strength of primary teeth. Although there are substantial microstructural differences between permanent and primary dentin, knowledge about permanent teeth is usually and merely adapted to primary teeth. Current self-etch adhesive systems may represent an attractive addition in pediatric dentistry because, besides their efficacy, they simplify the adhesive protocol reducing operative time and making the technique less sensitive. Purpose: The aim of this study was to evaluate the adhesive interfaces of four adhesive systems to primary dentin. Materials and methods: Sixteen sound human primary molars were ground flat to expose dentin randomly divided into four experimental groups, according to the different adhesive materials evaluated: ClearfilTM Protect Bond, Prime&Bond NT, ClearfilTM S3 Bond Plus and Futurabond U. The adhesives were applied under manufacturer’s instructions and the crowns restored with a composite resin. Then, the restored teeth were cross-sectioned to obtain sticks (1,2mm x 1,2mm x 9 mm). Each stick was evaluated by a microtensile test in a universal testing machine, with a crosshead speed of 0,5mm/minute. The fracture modes were examined and classified with an optical microscope (40x magnification). Primary dentin disks were additionally obtained aiming samples preparation for interface´s morphology characterization by SEM (scanning electron microscopy). The bond strengths data were analyzed using one-way ANOVA and Tukey HSD test. All statistical tests were applied at a confidence level of 95%. Results: ClearfilTM S3 Bond Plus presented the highest values (47,28MPa), followed by Prime&Bond NT (43,11MPa), ClearfilTM Protect Bond (40,33MPa) and FuturabondU (35,16MPa). ClearfilTM S3 Bond Plus, Prime&Bond NT and ClearfilTM Protect Bond showed statistically comparable results. Futurabond® U bond strengths was statistically similar to ClearfilTM Protect Bond but significantly lower from Prime&Bond® NT and ClearfilTM S3 Bond Plus. SEM evaluation of hybrid layer showed that ClearfilTM S3 Bond Plus and Futurabond® U (one-step adhesive systems) have produced a thinner hybrid layer compared to Prime&Bond NT and Clearfil™ Protect Bond (two-step adhesive systems). Conclusions: Concerning the limitations of this in vitro study, self-etch adhesives may be considered as a suitable alternative to etch-rinse adhesives in Pediatric Dentistry.2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/36680http://hdl.handle.net/10316/36680porTorres, Sofia Raquel Mendesinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-01-20T17:48:51Zoai:estudogeral.uc.pt:10316/36680Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:45:35.120704Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Microtensile bond strength evaluation of self-etch adhesives to primary dentin
title Microtensile bond strength evaluation of self-etch adhesives to primary dentin
spellingShingle Microtensile bond strength evaluation of self-etch adhesives to primary dentin
Torres, Sofia Raquel Mendes
Bond strength
Adhesives
Self-etch
Deciduous teeth
Microtensile
title_short Microtensile bond strength evaluation of self-etch adhesives to primary dentin
title_full Microtensile bond strength evaluation of self-etch adhesives to primary dentin
title_fullStr Microtensile bond strength evaluation of self-etch adhesives to primary dentin
title_full_unstemmed Microtensile bond strength evaluation of self-etch adhesives to primary dentin
title_sort Microtensile bond strength evaluation of self-etch adhesives to primary dentin
author Torres, Sofia Raquel Mendes
author_facet Torres, Sofia Raquel Mendes
author_role author
dc.contributor.author.fl_str_mv Torres, Sofia Raquel Mendes
dc.subject.por.fl_str_mv Bond strength
Adhesives
Self-etch
Deciduous teeth
Microtensile
topic Bond strength
Adhesives
Self-etch
Deciduous teeth
Microtensile
description Trabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/36680
http://hdl.handle.net/10316/36680
url http://hdl.handle.net/10316/36680
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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