Composite Resin to Yttria Stabilized Tetragonal Zirconia Polycrystal Bonding: Comparison of Repair Methods

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dc.contributor.authorCristoforides, P. [UNESP]
dc.contributor.authorAmaral, R. [UNESP]
dc.contributor.authorMay, L. G.
dc.contributor.authorBottino, M. A. [UNESP]
dc.contributor.authorValandro, L. F.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Santa Maria (UFSM)
dc.date.accessioned2014-05-20T15:31:50Z
dc.date.available2014-05-20T15:31:50Z
dc.date.issued2012-05-01
dc.description.abstractPurpose: The purpose of the current study was to evaluate different approaches for bonding composite to the surface of yttria stabilized tetragonal zirconia polycrystal (Y-TZP) ceramics.Methods: One hundred Y-TZP blocks were embedded in acrylic resin, had the free surface polished, and were randomly divided into 10 groups (n=10). The tested repair approaches included four surface treatments: tribochemical silica coating (TBS), methacryloxydecyldihidrogenphosphate (MDP)-containing primer/silane, sandblasting, and metal/zirconia primer. Alcohol cleaning was used as a "no treatment" control. Surface treatment was followed by the application (or lack thereof) of an MDP-containing resin cement liner. Subsequently, a composite resin was applied to the ceramic surface using a cylindrical mold (4-mm diameter). After aging for 60 days in water storage, including 6000 thermal cycles, the specimens were submitted to a shear test. Analysis of variance and the Tukey test were used for statistical analyses (alpha=0.05).Results: Surface treatment was a statistically significant factor (F=85.42; p<0.0001). The application of the MDP-containing liner had no effect on bond strength (p=0.1017). TBS was the only treatment that had a significantly positive effect on bond strength after aging.Conclusion: Considering the evaluated approaches, TBS seems to be the best surface treatment for Y-TZP composite repairs. The use of an MDP-containing liner between the composite and Y-TZP surfaces is not effective.en
dc.description.affiliationSão Paulo State Univ UNESP, Sao Jose Dos Campos, Brazil
dc.description.affiliationUniversidade Federal de Santa Maria (UFSM), Oral Sci Grad Program, BR-97119900 Santa Maria, RS, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Sao Jose Dos Campos, Brazil
dc.format.extent263-271
dc.identifierhttp://dx.doi.org/10.2341/11-193-L
dc.identifier.citationOperative Dentistry. Indianapolis: Operative Dentistry Inc, v. 37, n. 3, p. 263-271, 2012.
dc.identifier.doi10.2341/11-193-L
dc.identifier.issn0361-7734
dc.identifier.lattes9234456003563666
dc.identifier.urihttp://hdl.handle.net/11449/40870
dc.identifier.wosWOS:000311768200006
dc.language.isoeng
dc.publisherOperative Dentistry Inc
dc.relation.ispartofOperative Dentistry
dc.relation.ispartofjcr2.130
dc.relation.ispartofsjr1,180
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleComposite Resin to Yttria Stabilized Tetragonal Zirconia Polycrystal Bonding: Comparison of Repair Methodsen
dc.typeArtigo
dcterms.rightsHolderOperative Dentistry Inc
unesp.author.lattes9234456003563666
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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