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dc.contributor.authorBotta, Ana Carolina-
dc.contributor.authorDuarte, Sillas-
dc.contributor.authorPaulin Filho, Pedro Iris-
dc.contributor.authorGheno, Simoni Maria-
dc.identifier.citationMicroscopy and Microanalysis. New York: Cambridge Univ Press, v. 14, n. 5, p. 380-386, 2008.-
dc.description.abstractRoughness increases significantly after finishing procedures. The aim of this study was to assess by the atomic force microscope (AFM) the effect of finishing instruments on the surface roughness of composite resins. A nanofiller composite resin (Filtek Supreme, 3M-F) and a microhybrid composite resin (Point 4, Kerr-P) were selected. The finishing procedures were done with a 30-blade carbide bur (C) and a 30-mu m finishing diamond bur (D). Standardized specimens were produced and divided into six experimental groups (n = 4) according to (1) composite resin, (2) absence of finishing (Mylar matrix-M), and (3) finishing instrument (FM, PM, FC, FD, PC, PD). The mean surface roughness was evaluated by AFM in the contact mode. FM and PM groups were assessed statistically by the Student's T test, and FC, FD, PC, PD groups were submitted to variance analysis (ANOVA), both at 5% significance. The mean surface roughness values, in nanometers, were FM, 23.63 (b); FC, 283.88 (c); FD, 510.55 (d); PM, 12.52 (a); PC, 343.98 (c); PD, 531.64 (d). Microhybrid composite displayed less roughness than nanofiller composite in the absence of finishing procedures. The 30-blade carbide bur produced less roughness compared to the extra fine diamond bur.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipDepartment of Materials Engineering of the Federal University of São Carlos-
dc.publisherCambridge University Press-
dc.sourceWeb of Science-
dc.subjectatomic force microscopyen
dc.subjectsurface roughnessen
dc.subjectcarbide buren
dc.subjectdiamond buren
dc.subjectnanofiller composite resinen
dc.subjectmicrohybrid composite resinen
dc.subjectfinishing techniquesen
dc.titleEffect of dental finishing instruments on the surface roughness of composite resins as elucidated by atomic force microscopyen
dc.contributor.institutionCase Western Reserve Univ-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.description.affiliationCase Western Reserve Univ, Case Sch Dent Med, Dept Comprehens Care, Cleveland, OH 44106 USA-
dc.description.affiliationUniv Estadual Paulista, Sao Jose Campos Sch Dent, Dept Restorat Dent, BR-12245000 São Paulo, Brazil-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Mat Engn, BR-13565905 São Carlos, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Sao Jose Campos Sch Dent, Dept Restorat Dent, BR-12245000 São Paulo, Brazil-
dc.description.sponsorshipIdCAPES: 33004030008M8-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofMicroscopy and Microanalysis-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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