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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.contributor.authorPowers, John M.-
dc.identifier.citationAmerican Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 22, n. 5, p. 252-254, 2009.-
dc.description.abstractPurpose: To assess surface roughness of resin composites submitted to different polishing techniques compared to intact human enamel. Methods: Nanofilled (Filtek Supreme XT), microhybrid (Point 4), hybrid (Tetric Ceram), and microfilled (Durafill VS) resin composites were selected. Four polishing techniques were tested (TO: Mylar matrix - control; T1: aluminum oxide discs; T2: felt + diamond paste; T3: aluminum oxide discs + felt + diamond paste) with each resin composite. The specimens were assigned to 16 experimental groups and one control group (n=4). Flat buccal surfaces of four human maxillary central incisors were used for the analysis of enamel roughness and served as control. The mean roughness was evaluated under atomic force microscopy in the contact mode. The obtained data were submitted to Student's t-test, ANOVA, and Tukey's Test, at 0.05 level of significance. Results: The roughness of enamel was 46.6 +/- 10.7 nm. The smoothest surface was obtained for the Mylar matrix with nanofiller (23.6 +/- 3.0 nm), microhybrid (12.8 +/- 1.4 nm), or hybrid resin (15.2 +/- 1.9 nm). Microfilled resin showed the lowest roughness with aluminum oxide discs (43.0 +/- 5.2 nm). Diamond paste increased the roughness of composites, whereas aluminum oxide discs yielded the smoothest surfaces. (Am J Dent 2009;22:252-254).en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.publisherMosher & Linder, Inc-
dc.sourceWeb of Science-
dc.titleSurface roughness of enamel and four resin compositesen
dc.contributor.institutionCase Western Reserve Univ-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionDent Consultants Inc-
dc.description.affiliationCase Western Reserve Univ, Sch Dent Med, Dept Comprehens Care, Cleveland, OH 44106 USA-
dc.description.affiliationSão Paulo State Univ UNESP, Sao Jose Campos Sch Dent, Dept Restorat Dent, São Paulo, Brazil-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Mat Engn, São Paulo, Brazil-
dc.description.affiliationDent Consultants Inc, Ann Arbor, MI USA-
dc.description.affiliationUnespSão Paulo State Univ UNESP, Sao Jose Campos Sch Dent, Dept Restorat Dent, São Paulo, Brazil-
dc.description.sponsorshipIdCAPES: 33004030008M8-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofAmerican Journal of Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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