Marginal adaptation of class II cavities restored with bulk-fill composites

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dc.contributor.authorCampos, Edson Alves [UNESP]
dc.contributor.authorArdu, Stefano
dc.contributor.authorLefever, Dorien
dc.contributor.authorJasse, Fernanda Ferreira [UNESP]
dc.contributor.authorBortolotto, Tissiana
dc.contributor.authorKrejci, Ivo
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Geneva
dc.date.accessioned2014-12-03T13:10:50Z
dc.date.available2014-12-03T13:10:50Z
dc.date.issued2014-05-01
dc.description.abstractObjectives: To determine the marginal adaptation of bulk-fill composites in class II MO cavities.Methods: Standardized class II MO cavities with bevelled enamel margins were prepared in 40 extracted human molars. The teeth were randomly assigned to one of the five experimental groups (n = 8). The teeth were restored with two horizontal increments of composite (4 mm and 2 mm thickness). The experimental groups were (1st/2nd increment): Gr. A - Venus Bulk-Fill/Venus Diamond; Gr. B - Tetric EvoCeram BulkFill/Tetric EvoCeram; Gr. C - Surefil SDR/Ceram-X; Gr. D - SonicFill; Gr. E - Ceram-X/Ceram-X (control). After finishing procedures, impressions were made using a polyvinyl siloxane and epoxy resin replicas were obtained. Thermo-mechanical stressing was carried out 24 h after the restorative procedure. All specimens were submitted to 240,000 occlusal loading and simultaneous 600 thermal cycles in water at 5 degrees C and 50 degrees C. After loading, a new set of epoxy resin replicas was obtained. Scanning electron microscopy was carried out at 200x magnification. Results for the marginal adaptation were expressed as percentages of continuity relative to the exposed interface and analyzed by ANOVA and Duncan post hoc test (p < 0.05).Results: In enamel, no significant differences were detected before and after thermo-mechanical loading between groups. In dentine, the worst results were observed in Gr. A.Conclusion: By applying simple layering techniques, bulk-fill materials do not allow better marginal adaptation than a standard composite. Clinical significance: A new class of resin-base composite (bulk-fill) was recently launched on the market. The bulk-fill composites exhibited adequate marginal adaptation and similar to the results of the standard composite. (C) 2014 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUNESP Univ Estadual Paulista, Araraquara Sch Dent, Dept Restorat Dent, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUniv Geneva, Sch Dent, Div Cariol & Endodontol, CH-1205 Geneva, Switzerland
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Araraquara Sch Dent, Dept Restorat Dent, BR-14801903 Araraquara, SP, Brazil
dc.format.extent575-581
dc.identifierhttp://dx.doi.org/10.1016/j.jdent.2014.02.007
dc.identifier.citationJournal Of Dentistry. Oxford: Elsevier Sci Ltd, v. 42, n. 5, p. 575-581, 2014.
dc.identifier.doi10.1016/j.jdent.2014.02.007
dc.identifier.issn0300-5712
dc.identifier.urihttp://hdl.handle.net/11449/112568
dc.identifier.wosWOS:000334745000008
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Dentistry
dc.relation.ispartofjcr3.770
dc.relation.ispartofsjr1,919
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCompositesen
dc.subjectBulk-fillen
dc.subjectMarginal adaptationen
dc.titleMarginal adaptation of class II cavities restored with bulk-fill compositesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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