99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.

Detalhes bibliográficos
Autor(a) principal: Laranjo, Ana Sofia Avidago
Data de Publicação: 2013
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/36392
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 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.Dental adhesionSelf-etch adhesiveComposite restorationsMicroleakagePolymerization shrinkageThermocyclingTrabalho 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: OptiBond XTRTM recently introduced in the market is a new mild self-etch adhesive bonding agent which is claimed to feature an enhanced etching ability of the primer in order to the decrease of the pH. Aim: Evaluate the microleakage of dental restorations using OptibondTM XTR. The null hypothesis was that the type adhesive system doesn’t have influence in what concerns to microleakage. Materials and methods: Thirty noncarious extracted human molars were selected and cut in two equal halves occlusogingivally. Class V cavities (4mm/3mm/3mm) were prepared on the buccal or lingual surfaces of each tooth with gingival margin walls in enamel. The specimens were randomly divided into 4 groups: 1- OptibondTM XTR was applied; 2 –ClearfillTM SE BOND was applied; 3 – the cavities weren’t restored; 4 – OptibondTM XTR was applied. In groups 1, 2 and 4 the enamel was conditioned (37% orthophosphoric acid) before the adhesive application and restored with SonicFillTM. The specimens were stored in distilled water (37ºC, 7 days) and then went through thermocycling (500 cycles, 5ºC and 55ºC, dwell time 30’’). Two coats of nail polish were applied to the external surface around of each restoration except to the negative control group, where the crowns were completely sealed. The specimens were submersed in a solution of 99mTc-Pertechnetate. The radioactivity was counted 3 hours later. The nonparametric Kruskal-Wallis test, with Bonferroni correction at a significance level of 5%, was used for statistical analyses. Results: Results showed that there weren’t statistically significant differences (p>0.05) among the groups restored with ClearfillTM SE and OptibondTM XTR. Conclusion: Based on the results of this study, the OptibondTM XTR doesn’t reduce microleakage compared to ClearfillTM SE BOND.2013-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/36392http://hdl.handle.net/10316/36392engLaranjo, Ana Sofia Avidagoinfo: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:RCAAP2022-01-20T17:48:50Zoai:estudogeral.uc.pt:10316/36392Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:45:33.069595Repositório 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 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
title 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
spellingShingle 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
Laranjo, Ana Sofia Avidago
Dental adhesion
Self-etch adhesive
Composite restorations
Microleakage
Polymerization shrinkage
Thermocycling
title_short 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
title_full 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
title_fullStr 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
title_full_unstemmed 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
title_sort 99mTc in the evaluation of microleakage of composite resin restorations with OptibondTM XTR: in vitro study.
author Laranjo, Ana Sofia Avidago
author_facet Laranjo, Ana Sofia Avidago
author_role author
dc.contributor.author.fl_str_mv Laranjo, Ana Sofia Avidago
dc.subject.por.fl_str_mv Dental adhesion
Self-etch adhesive
Composite restorations
Microleakage
Polymerization shrinkage
Thermocycling
topic Dental adhesion
Self-etch adhesive
Composite restorations
Microleakage
Polymerization shrinkage
Thermocycling
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 2013-06
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/10316/36392
http://hdl.handle.net/10316/36392
url http://hdl.handle.net/10316/36392
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.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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