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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/112448
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dc.contributor.authorGoiato, Marcelo Coelho-
dc.contributor.authorRossatti Zuccolotti, Bruna Carolina-
dc.contributor.authorSantos, Daniela Micheline dos-
dc.contributor.authorCoelho Sinhoreti, Mario Alexandre-
dc.contributor.authorMoreno, Amalia-
dc.date.accessioned2014-12-03T13:10:43Z-
dc.date.accessioned2016-10-25T20:11:12Z-
dc.date.available2014-12-03T13:10:43Z-
dc.date.available2016-10-25T20:11:12Z-
dc.date.issued2013-08-01-
dc.identifierhttp://dx.doi.org/10.1016/S0022-3913(13)60387-X-
dc.identifier.citationJournal of Prosthetic Dentistry. New York: Mosby-elsevier, v. 110, n. 2, p. 101-106, 2013.-
dc.identifier.issn0022-3913-
dc.identifier.urihttp://hdl.handle.net/11449/112448-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/112448-
dc.description.abstractStatement of problem. Intrinsic pigmentation is widely used to improve the esthetic features of denture base acrylic resins. However, acrylic resin may discolor over time.Purpose. The purpose of this study was to investigate the effect of intrinsic nanoparticle pigmentation on the color stability of acrylic resins.Material and methods. The acrylic resins, Onda Cryl, QC 20, Classico, and Lucitone, were evaluated. Twenty-one disk-shaped specimens (3 x 30 mm) were fabricated from each acrylic resin. Seven were colored with 3% Poli-Cor intrinsic pigment used to color denture base, 7 were colored with 7% pigment, and 7 were not pigmented. In addition, 7 specimens were fabricated containing only pigment. The specimens were thermally cycled 2000 times between 5 degrees C and 55 degrees C with a 30-second dwell time at each temperature. The specimen colors were measured with a spectrophotometer and evaluated with the CIE L*a*b* system before (B) and after thermal cycling (T). The pigment morphology was analyzed by using a scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) techniques. The results were analyzed with 2-way nested ANOVA and Tukey HSD tests (alpha=.05).Results. Classico acrylic resin with and without pigment underwent the least color change, followed in order by Lucitone, Onda Cryl, and QC-20. The presence of pigments reduced the color change of the acrylic resins significantly (P<.05) for the specimens containing 7% pigment (0.32 +/- 0.18 Delta E). Titanium was the sole metallic component present in the pigment, probably in the oxide form (TiO2).Conclusions. Nanoparticle pigments enhanced the color stability of denture base acrylic resins. (J Prosthet Dent 2013;110:101-106)en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.format.extent101-106-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.titleEffect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resinsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.description.affiliationSao Paulo State Univ, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 Aracatuba, SP, Brazil-
dc.description.affiliationUniv Estadual Campinas, Piracicaba Dent Sch, Sao Paulo, Brazil-
dc.description.affiliationUnespSao Paulo State Univ, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 Aracatuba, SP, Brazil-
dc.description.sponsorshipIdFAPESP: 09/15170-3-
dc.identifier.wosWOS:000323470200005-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Prosthetic Dentistry-
dc.identifier.orcid0000-0002-3800-3050pt
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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