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Multi-step adhesive cementation versus one-step adhesive cementation: push-out bond strength between fiber post and root dentin before and after mechanical cycling

dc.contributor.authorAmaral, Marina [UNESP]
dc.contributor.authorRippe, Marilia Pivetta
dc.contributor.authorBergoli, Cesar Dalmolin
dc.contributor.authorMonaco, Carlo
dc.contributor.authorValandro, Luiz Felipe
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-12-07T15:30:08Z
dc.date.available2015-12-07T15:30:08Z
dc.date.issued2011
dc.description.abstractThis study evaluated the effects of mechanical cycling on resin push-out bond strength to root dentin, using two strategies for fiber post cementation. Forty bovine roots were embedded in acrylic resin after root canal preparation using a custom drill of the fiber post system. The fiber posts were cemented into root canals using two different strategies (N = 20): a conventional adhesive approach using a three-step etch-and-rinse adhesive system combined with a conventional resin cement (ScotchBond Multi Purpose Plus + RelyX ARC ), or a simplified adhesive approach using a self-adhesive resin cement (RelyX U100). The core was built up with composite resin and half of the specimens from each cementation strategy were submitted to mechanical cycling (45 degree angle; 37 degrees C; 88 N; 4 Hz; 700,000 cycles). Each specimen was cross-sectioned and the disk specimens were pushed-out. The means from every group (n = 10) were statistically analyzed using a two-way ANOVA and a Tukey test (P = 0.05). The cementation strategy affected the push-out results (P < 0.001), while mechanical cycling did not (P = 0.3716). The simplified approach (a self-adhesive resin cement) had better bond performance despite the conditioning. The self-adhesive resin cement appears to be a good option for post cementation. Further trials are needed to confirm these results.en
dc.description.affiliationFaculty of Odontology, Sao Paulo State University (UNESP), Sao Jose dos Campos, Brazil.
dc.description.affiliationUnespFaculty of Odontology, Sao Paulo State University (UNESP), Sao Jose dos Campos, Brazil.
dc.format.extent185-191
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/22313828
dc.identifier.citationGeneral Dentistry, v. 59, n. 5, p. 185-191, 2011.
dc.identifier.issn0363-6771
dc.identifier.pubmed22313828
dc.identifier.urihttp://hdl.handle.net/11449/130914
dc.language.isoeng
dc.publisherGeneral Dentistry
dc.relation.ispartofGeneral Dentistry
dc.relation.ispartofsjr0,206
dc.rights.accessRightsAcesso restrito
dc.sourcePubMed
dc.titleMulti-step adhesive cementation versus one-step adhesive cementation: push-out bond strength between fiber post and root dentin before and after mechanical cyclingen
dc.typeArtigo
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, São José dos Campospt
unesp.departmentOdontologia Restauradora - ICTpt

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