Influência de cimentos temporários na resistência de união de um cimento resinoso sobre a dentina pré-hibridizada

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dc.contributor.authorLima, Márcio Ferreira
dc.contributor.authorMaciel, Carolina Menezes
dc.contributor.authorCorreia, Ayla Macyelle de Oliveira
dc.contributor.authorGriza, Sandro
dc.contributor.authorde Mendonça, Adriano Augusto Melo
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-28T19:05:30Z
dc.date.available2022-04-28T19:05:30Z
dc.date.issued2017-01-01
dc.description.abstractThis study assessed the bond strength of a resin cement when Immediate Sealed Dentin (ISD) was contaminated by different temporary cements applying a microshear test. Forty-eight fragments of third molar crowns were mounted in acrylic resin and worn until the dentin was exposed. The substrates were sealed with a 3-step conventional adhesive system and divided into four groups (n=12): Control (without temporary cement) and three groups that used different temporary cements - Provy, RelyX Temp NE, and Provitemp. The temporary cements were removed after 7 days of storage. Resin cement RelyX ARC was applied to the contaminated substrates. Microshear bond strength was evaluated using a universal testing machine (0.5 mm/min). Data was analyzed with ANOVA and a Dunnett post-hoc test (p<0.05). Additionally, three samples from each group were prepared for scanning electron microscope analysis. Means and standard deviations of microshear bond strength (MPa) were 17.96±1.65, 16.70±1.43, 20.43±1.30 and 33.75±4.72 for Control, Provy, RelyX Temp, and Provitemp, respectively. Statistically significant difference was observed between the Control and Provitemp samples (p=0.0002). Adhesive failures were dominant (50%), followed by cohesive failures with cement (26%), and cohesive failures with dentin (24%). Residues of Provy and Provitemp were observed on the sealed dentin. Provitemp temporary cement sealing increased the microshear bond strength of the resin cement on dentin treated with IDS.en
dc.description.affiliationDentistry Department Federal University of Sergipe
dc.description.affiliationRestorative Dentistry Department State University of São Paulo
dc.description.affiliationPost-graduation in Materials’ Science and Engineering Federal University of Sergipe
dc.format.extent247-256
dc.identifierhttp://dx.doi.org/10.14393/BJ-v33n1a2017-34668
dc.identifier.citationBioscience Journal, v. 33, n. 1, p. 247-256, 2017.
dc.identifier.doi10.14393/BJ-v33n1a2017-34668
dc.identifier.issn1981-3163
dc.identifier.issn1516-3725
dc.identifier.scopus2-s2.0-85012146236
dc.identifier.urihttp://hdl.handle.net/11449/220793
dc.language.isoeng
dc.relation.ispartofBioscience Journal
dc.sourceScopus
dc.subjectBond strength
dc.subjectDental materials
dc.subjectImmediate dentin sealing
dc.subjectResin cements
dc.titleInfluência de cimentos temporários na resistência de união de um cimento resinoso sobre a dentina pré-hibridizadapt
dc.title.alternativeEffect of temporary cements on the bond strength of a resin cement to a pre-hybridized dentinen
dc.typeArtigo

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