In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Filipa Nobre de Carvalho
Data de Publicação: 2016
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/26138
Resumo: Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2016
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spelling In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressureMateriais dentáriosAdesivos dentáriosTeses de mestrado - 2016Domínio/Área Científica::Ciências Médicas::Medicina ClínicaTese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2016Objectives: To evaluate the microtensile bond strength (μTBS) and the resin-dentin interface morphology of an universal adhesive system, Futurabond M+ (FB), in the etch-and-rinse strategy and in the self-etch strategy, with and without pulpal pressure. Methods: Forty caries-free extracted human molars were randomly assigned to four experimental conditions: Group A - FB with etch-and-rinse strategy; Group B - FB with self-etch strategy, both without pulpal pressure; Group C - FB with etch-and-rinse strategy; Group D - FB with self-etch strategy, both with pulpal pressure. The specimens were then stored in distilled water in an incubator for 24 hours at 37ºC. Subsequently, teeth were longitudinally sectioned with a low-speed diamond saw under water irrigation, dividing them into two halves. One of the halves was then longitudinally sectioned in both “x” and “y” directions across the bonded interface, creating sticks with a cross-sectional area of approximately 1mm2. The other half was sectioned in order to create 2 quarters of the initial specimen and used for SEM observation. Statistical analysis was performed through the SPSS program. Kruskal-Wallis and Mann-Whitney tests were performed when the assumption of normality and homogeneity were not observed. Results: There were statistically significant differences in μTBS (p<0,05) between the ER and SE application modes in the group with pulpal pressure and also when the experimental groups with pulpal pressure were compared with the ones without pulpal pressure. The presence of pulpal pressure also caused structural defects in the resin-dentin interface morphology both in the ER and SE strategies. Conclusions: Pulpal pressure clearly leads to significant differences both in the microtensile bond strength analysis and in the resin-dentin interface morphological analysis of universal adhesives. Hence, it becomes increasingly more important that researchers simulate pulpal pressure in their in vitro studies in order to better represent clinical conditions.Oliveira, Sofia Arante e, 1973-Repositório da Universidade de LisboaRodrigues, Filipa Nobre de Carvalho2017-01-23T16:18:34Z201620162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/26138TID:201289903enginfo: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:RCAAP2023-11-08T16:16:03Zoai:repositorio.ul.pt:10451/26138Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:42:52.332305Repositório 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 In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
title In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
spellingShingle In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
Rodrigues, Filipa Nobre de Carvalho
Materiais dentários
Adesivos dentários
Teses de mestrado - 2016
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
title_short In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
title_full In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
title_fullStr In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
title_full_unstemmed In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
title_sort In vitro study of the adhesion to dentin promoted by an universal system:futurabond M+ - with and without pulpar pressure
author Rodrigues, Filipa Nobre de Carvalho
author_facet Rodrigues, Filipa Nobre de Carvalho
author_role author
dc.contributor.none.fl_str_mv Oliveira, Sofia Arante e, 1973-
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Rodrigues, Filipa Nobre de Carvalho
dc.subject.por.fl_str_mv Materiais dentários
Adesivos dentários
Teses de mestrado - 2016
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
topic Materiais dentários
Adesivos dentários
Teses de mestrado - 2016
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
description Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2016
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016-01-01T00:00:00Z
2017-01-23T16:18:34Z
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/10451/26138
TID:201289903
url http://hdl.handle.net/10451/26138
identifier_str_mv TID:201289903
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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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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