Surface roughness of enamel and four resin composites

dc.contributor.authorBotta, Ana Carolina [UNESP]
dc.contributor.authorDuarte, Sillas
dc.contributor.authorPaulin Filho, Pedro Iris
dc.contributor.authorGheno, Simoni Maria
dc.contributor.authorPowers, John M.
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.date.accessioned2014-05-20T14:05:19Z
dc.date.available2014-05-20T14:05:19Z
dc.date.issued2009-10-01
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.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.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCAPES: 33004030008M8
dc.format.extent252-254
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/20225464
dc.identifier.citationAmerican Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 22, n. 5, p. 252-254, 2009.
dc.identifier.issn0894-8275
dc.identifier.urihttp://hdl.handle.net/11449/22916
dc.identifier.wosWOS:000273958100001
dc.language.isoeng
dc.publisherMosher & Linder, Inc
dc.relation.ispartofAmerican Journal of Dentistry
dc.relation.ispartofjcr0.760
dc.relation.ispartofsjr0,509
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleSurface roughness of enamel and four resin compositesen
dc.typeArtigo
dcterms.rightsHolderMosher & Linder, Inc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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