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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/126198
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dc.contributor.authorMestieri, Leticia Boldrin-
dc.contributor.authorTanomaru-Filho, Mário-
dc.contributor.authorGomes-cornélio, Ana Livia-
dc.contributor.authorSalles, Loise Pedrosa-
dc.contributor.authorBernardi, Maria Inês Basso-
dc.contributor.authorGuerreiro-Tanomaru, Juliane Maria-
dc.date.accessioned2015-08-06T16:14:48Z-
dc.date.accessioned2016-10-25T20:54:37Z-
dc.date.available2015-08-06T16:14:48Z-
dc.date.available2016-10-25T20:54:37Z-
dc.date.issued2014-12-01-
dc.identifierhttp://dx.doi.org/10.1590/1678-775720140209-
dc.identifier.citationJournal of Applied Oral Science. Faculdade De Odontologia De Bauru - USP, v. 22, n. 6, p. 554-559, 2014.-
dc.identifier.issn1678-7757-
dc.identifier.urihttp://hdl.handle.net/11449/126198-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/126198-
dc.description.abstractObjectiveMineral Trioxide Aggregate (MTA) is composed of Portland Cement (PC) and bismuth oxide (BO). Replacing BO for niobium oxide (NbO) microparticles (Nbµ) or nanoparticles (Nbη) may improve radiopacity and bioactivity. The aim of this study was to evaluate the radiopacity and cytotoxicity of the materials: 1) PC; 2) White MTA; 3) PC+30% Nbµ; 4) PC+30% Nbη. Material and MethodFor the radiopacity test, specimens of the different materials were radiographed along an aluminum step-wedge. For cell culture assays, Saos-2 osteoblastic-cells (ATCC HTB-85) were used. Cell viability was evaluated through MTT assay, and bioactivity was assessed by alkaline phosphatase activity assay. ResultThe results demonstrated higher radiopacity for MTA, followed by Nbµ and Nbη, which had similar values. Cell culture analysis showed that PC and PC+NbO associations promoted greater cell viability than MTA. ConclusionIt was concluded that the combination of PC+NbO is a potential alternative for composition of MTA.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.format.extent554-559-
dc.language.isoeng-
dc.publisherFaculdade De Odontologia De Bauru - USP-
dc.sourceSciELO-
dc.subjectSilicate cementen
dc.subjectNiobiumen
dc.subjectNanotechnologyen
dc.titleRadiopacity and cytotoxicity of Portland cement associated with niobium oxide micro and nanoparticlesen
dc.typeoutro-
dc.contributor.institutionUniv. Estadual Paulista Araraquara Dental School Department of Restorative Dentistry-
dc.contributor.institutionUniversity of São Paulo Institute of Physics-
dc.description.affiliationUniv. Estadual Paulista Araraquara Dental School Department of Restorative Dentistry-
dc.description.affiliationUniversity of São Paulo Institute of Physics-
dc.identifier.doi10.1590/1678-775720140209-
dc.identifier.scieloS1678-77572014000600554-
dc.rights.accessRightsAcesso aberto-
dc.identifier.fileS1678-77572014000600554.pdf-
dc.relation.ispartofJournal of Applied Oral Science-
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