Effects of dentin dry/moist condition on the immediate adhesive performance of different solvent-based etch-and-rinse adhesivesystems

Página do item simplificado
dc.contributor.authorSilveira Machado, Lucas [UNESP]
dc.contributor.authorDe Oliveira, Fernanda Garcia [UNESP]
dc.contributor.authorAndrade Guinossi, Thiago [UNESP]
dc.contributor.authorSundfeld Neto, Daniel
dc.contributor.authorDe Alexandre, Rodrigo Sversut
dc.contributor.authorFigueiredo Reis, André
dc.contributor.authorSundfeld, Renato Herman [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversity of Guarulhos
dc.date.accessioned2014-05-27T11:28:27Z
dc.date.available2014-05-27T11:28:27Z
dc.date.issued2013-02-18
dc.description.abstractPurpose: The purpose of this research was to analyze and measure, under optical microscopy, the hybrid layer thickness and resin tags length, as well as the microtensile bond strength of two conventional adhesive systems when applied to dry and moist dentinal substrate. Methods: Thirty-two extracted human molars were randomly distributed into four groups according to the adhesive systems (XP Bond and Prime&Bond 2.1) and moisture condition (dry and moist). In Groups I and II, XP adhesive system was applied on dry and moist dentin, respectively; while Groups III and IV received PB adhesive system, in the same way as was done in Groups I and II, respectively. After adhesive and restorative procedures, all specimens were sectioned along their long axes; one hemi-tooth sample was subjected to the microtensile bond strength test while the other was decalcified and serially sectioned into six micron thick slices and sequentially mounted on glass slides. These sections were stained by the Brown and Brenn method for posterior analysis and measurement of the hybrid layer and resin tags under a light microscope with a micrometric ocular 40/075. Results: Data were analyzed using two-way ANOVA and Tukey's test (α=0.05). For the variable hybrid layer thickness, XP showed no significant differences between dry and moist dentin (5.2 μm and 5.5 μm, respectively), but for PB, hybrid layer was significantly thicker for moist (4.0 μm) than for dry dentin (3.0 μm). For the variable resin tags length XP showed 17.9 μm length for dry dentin and 20.8 μm for moist dentin; PB 11.7 μm for dry and 12.69 μm for moist dentin;there was no significant differences between them, independent of the moisture condition. For the variable microtensile bond strength, XP showed 38.0 MPa for dry dentin and 44.5 MPa for moist dentin; and PB showed 22.7 MPa for dry dentin and 20.8 MPa for dry dentin no significant difference was observed between moist and dry dentin for XP (p=0.2) and PB (p=0.7), but XP was presented significantly higher bond strength values than PB in both moisture conditions (p=0.003 for dry and p=0.002 for moist). Conclusion: The two-step butanol-based etch-and-rinse adhesive XP Bond presented a superior behavior with regard to the hybrid layer thickness, length of resin tags and bond strength to dry and moist dentin substrates when compared with two-step acetone-based adhesive system Prime&Bond2.1. © 2013 Elsevier Ltd.en
dc.description.affiliationDiscipline of Restorative Dentistry Araçatuba Dental School São Paulo State University, Araçatuba
dc.description.affiliationAraçatuba School of Dentistry - UNESP
dc.description.affiliationPiracicaba School of Dentistry - UNICAMP
dc.description.affiliationDiscipline of Restorative Dentistry School of Dentistry University of Guarulhos, SP
dc.description.affiliationDepartment of Operative Dentistry School of Dentistry University of Guarulhos, SP
dc.description.affiliationUnespDiscipline of Restorative Dentistry Araçatuba Dental School São Paulo State University, Araçatuba
dc.description.affiliationUnespAraçatuba School of Dentistry - UNESP
dc.format.extent1-6
dc.identifierhttp://dx.doi.org/10.1016/j.ijadhadh.2013.01.002
dc.identifier.citationInternational Journal of Adhesion and Adhesives, v. 43, p. 1-6.
dc.identifier.doi10.1016/j.ijadhadh.2013.01.002
dc.identifier.issn0143-7496
dc.identifier.lattes9693348671473011
dc.identifier.scopus2-s2.0-84873615402
dc.identifier.urihttp://hdl.handle.net/11449/74600
dc.identifier.wosWOS:000317318000001
dc.language.isoeng
dc.relation.ispartofInternational Journal of Adhesion and Adhesives
dc.relation.ispartofjcr2.065
dc.relation.ispartofsjr0,926
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAdhesive systems
dc.subjectDry dentin
dc.subjectHybrid layer
dc.subjectMicrotensile bond strength
dc.subjectMoist dentin
dc.subjectTags
dc.subjectMicro-tensile bond strength
dc.subjectAcetone
dc.subjectBond (masonry)
dc.subjectBond strength (materials)
dc.subjectMoisture
dc.subjectOptical microscopy
dc.subjectSubstrates
dc.subjectResins
dc.titleEffects of dentin dry/moist condition on the immediate adhesive performance of different solvent-based etch-and-rinse adhesivesystemsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes9693348671473011
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

Arquivos

Coleções

Artigos - Odontologia Restauradora - FOA