Influence of new universal adhesives and zirconia primer application techniques on zirconia repair

Detalhes bibliográficos
Autor(a) principal: Seabra, Bruno
Data de Publicação: 2012
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/26607
Resumo: Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2012
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spelling Influence of new universal adhesives and zirconia primer application techniques on zirconia repairMateriais dentáriosTeses de mestrado - 2012Domínio/Área Científica::Ciências Médicas::Medicina ClínicaTese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2012INTRODUCTION The protocol traditionally used for bonding composite resin to feldspathic ceramic is not effective to promote adhesion to Zirconia. In the last years, different methods have been studied to achieve that purpose. The development of new primers and adhesives containing phosphate monomers (MDP), have shown promising results. OBJECTIVES To investigate the influence of a zirconia primer, with different application protocols, and two new universal adhesives, all containing MDP, on the shear bond strength between resin composite and zirconia. MATERIALS AND METHODS 60 zirconia Y-TZP blocks (Lava™ Frame Zirconia - 3M ESPE, Seefeld, Germany) with standardized dimensions (9.6mm x 9.6mm x 4.8mm) were mechanically conditioned with 50 μm Al2O3 airborne particle abrasion and randomly divided into six experimental groups (n=10) according to the application protocol of the primer or the adhesives used: 1) Z-Prime™ Plus (ZPP) (Bisco, Schaumburg, USA) – 1 coat without light-curing (ZPP-1); 2) ZPP – 1 coat light-cured (ZPP-1-LC); 3) ZPP – 2 coats without light-curing (ZPP-2); 4) ZPP – 2 coats light-cured (ZPP-2-LC); 5) All-Bond Universal™ (Bisco, Schaumburg, USA) (ABU); 6) Scotch-Bond Universal™ (3M ESPE, Seefeld, Germany) (SBU). Universal adhesives were coated to the zirconia specimen surface according to the manufacturer´s recommendations. Two 1.5 mm increments of composite (Filtek™ Z250) were inserted and light-cured, over the primer/adhesive. After 48 h stored in distilled water at 37 °C, shear bond strength test (1mm/min) was performed. Failure mode determination was performed with a stereomicroscope (20x) Meiji Techno EMZ-8TR (Meiji Techno Co., Saitama, Japan), and classified as adhesive or mixed failure. xiv SBS data were analyzed using 1-way ANOVA, followed by Student-Newman- Keuls post-hoc tests (p<0.05). Kruskal-Wallis, followed by LSD method post-hoc tests was used to analyze failure data. RESULTS The mean SBS values ranged from 19,3 MPa (ZPP-1 - 1 coat no light-cured) to 34,9 MPa (SBU). SBU, ABU and ZPP-2-LC groups achieved statistically higher SBS mean values than the other three experimental groups (p<0.05). No statisticallly significant differences (p≥0.05) were found between SBU, ABU and ZPP-2-LC or comparing ZPP-1, ZPP-1-LC and ZPP-2 application protocol. The three groups with the lowest SBS values registered 100% of adhesive failures. Groups with highest SBS values registered adhesives and mixed failures. CONCLUSION The two new universal adhesives were effective in promoting adhesion between composite and zirconia Z-Prime™ plus Should be applied in two coats, followed by light-curring, to promote SBS similar to the new universal adhesives.Portugal, Jaime, 1969-Repositório da Universidade de LisboaSeabra, Bruno2017-02-21T13:23:15Z201220122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/26607TID:201609665enginfo: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:RCAAP2023-11-08T16:16:45Zoai:repositorio.ul.pt:10451/26607Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:43:10.529790Repositório 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 Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
title Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
spellingShingle Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
Seabra, Bruno
Materiais dentários
Teses de mestrado - 2012
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
title_short Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
title_full Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
title_fullStr Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
title_full_unstemmed Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
title_sort Influence of new universal adhesives and zirconia primer application techniques on zirconia repair
author Seabra, Bruno
author_facet Seabra, Bruno
author_role author
dc.contributor.none.fl_str_mv Portugal, Jaime, 1969-
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Seabra, Bruno
dc.subject.por.fl_str_mv Materiais dentários
Teses de mestrado - 2012
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
topic Materiais dentários
Teses de mestrado - 2012
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
description Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2012
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012-01-01T00:00:00Z
2017-02-21T13:23:15Z
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/10451/26607
TID:201609665
url http://hdl.handle.net/10451/26607
identifier_str_mv TID:201609665
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
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
repository.mail.fl_str_mv
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