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dc.contributor.authorBorges, A. L. S. [UNESP]
dc.contributor.authorBorges, A. B. [UNESP]
dc.contributor.authorXavier, T. A.
dc.contributor.authorBottino, M. C.
dc.contributor.authorPlatt, J. A.
dc.date.accessioned2014-12-03T13:11:12Z
dc.date.available2014-12-03T13:11:12Z
dc.date.issued2014-03-01
dc.identifierhttp://dx.doi.org/10.2341/12-440-L
dc.identifier.citationOperative Dentistry. Indianapolis: Operative Dentistry Inc, v. 39, n. 2, p. 144-151, 2014.
dc.identifier.issn0361-7734
dc.identifier.urihttp://hdl.handle.net/11449/112973
dc.description.abstractObjective: This study evaluated the effect of quantity of resin composite, C-factor, and geometry in Class V restorations on shrinkage stress after bulk fill insertion of resin using two-dimensional finite element analysis.Methods: An image of a buccolingual longitudinal plane in the middle of an upper first premolar and supporting tissues was used for modeling 10 groups: cylindrical cavity, erosion, and abfraction lesions with the same C-factor (1.57), a second cylindrical cavity and abfraction lesion with the same quantity of resin (QR) as the erosion lesion, and then all repeated with a bevel on the occlusal cavosurface angle. The 10 groups were imported into Ansys 13.0 for two-dimensional finite element analysis. The mesh was built with 30,000 triangle and square elements of 0.1 mm in length for all the models. All materials were considered isotropic, homogeneous, elastic, and linear, and the resin composite shrinkage was simulated by thermal analogy. The maximum principal (MPS) and von Mises stresses (VMS) were analyzed for comparing the behavior of the groups.Results: Different values of angles for the cavosurface margin in enamel and dentin were obtained for all groups and the higher the angle, the lower the stress concentration. When the groups with the same C-factor and QR were compared, the erosion shape cavity showed the highest MPS and VMS values, and abfraction shape, the lowest. A cavosurface bevel decreased the stress values on the occlusal margin. The geometry factor overcame the effects of C-factor and QR in some situations.Conclusion: Within the limitations of the current methodology, it is possible to conclude that the combination of all variables studied influences the stress, but the geometry is the most important factor to be considered by the operator.en
dc.format.extent144-151
dc.language.isoeng
dc.publisherOperative Dentistry Inc
dc.relation.ispartofOperative Dentistry
dc.sourceWeb of Science
dc.titleImpact of Quantity of Resin, C-factor, and Geometry on Resin Composite Polymerization Shrinkage Stress in Class V Restorationsen
dc.typeArtigo
dcterms.rightsHolderOperative Dentistry Inc
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionIndiana University
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Dent Mat & Prosthodont, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, UNESP, Dept Restorat Dent, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Dept Dent Mat, Sch Dent, Sao Paulo, Brazil
dc.description.affiliationIndiana Univ, Dept Restorat Dent, Indianapolis, IN 46204 USA
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Dent Mat & Prosthodont, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Dept Restorat Dent, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, SP, Brazil
dc.identifier.doi10.2341/12-440-L
dc.identifier.wosWOS:000332906100006
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, São José dos Campospt
dc.identifier.fileWOS000332906100006.pdf
dc.identifier.lattes6043459304176015
dc.identifier.lattes6960470053037905
dc.identifier.orcid0000-0002-5707-7565
unesp.author.lattes6043459304176015[1]
unesp.author.lattes6960470053037905[2]
unesp.author.orcid0000-0001-7686-089X[2]
unesp.author.orcid0000-0002-5707-7565[1]
dc.relation.ispartofjcr2.130
dc.relation.ispartofsjr1,180
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