Influence of Pigments and Opacifiers on Color Stability of an Artificially Aged Facial Silicone

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dc.contributor.authorSantos, Daniela Micheline dos [UNESP]
dc.contributor.authorGoiato, Marcelo Coelho [UNESP]
dc.contributor.authorMoreno, Amalia [UNESP]
dc.contributor.authorPesqueira, Aldieris Alves [UNESP]
dc.contributor.authorHaddad, Marcela Filie [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:30:06Z
dc.date.accessioned2014-05-20T13:43:44Z
dc.date.available2013-09-30T18:30:06Z
dc.date.available2014-05-20T13:43:44Z
dc.date.issued2011-04-01
dc.description.abstractPurpose: The aim of this study was to evaluate the influence of two pigments (ceramic powder and oil paint) and one opacifier (barium sulfate) on the color stability of MDX4-4210 facial silicone submitted to accelerated aging.Materials and Methods: Sixty specimens of silicone were fabricated and divided into six groups-colorless (G1), colorless with opacifier (G2), ceramic (G3), ceramic with opacifier (G4), oil (G5), oil with opacifier (G6). All replicas were submitted to accelerated aging for 1008 hours. The evaluations of chromatic alteration through visual analysis and reflection spectrophotometry were carried out initially and after 252, 504, and 1008 hours of aging. The results were submitted to ANOVA and Tukey's test at 5% level of significance.Results: All groups exhibited chromatic alteration (Delta E > 0); however, this color alteration was not perceptible through visual analysis of the color. The pigmented groups with opacifier presented the lowest Delta E values, with a statistical difference from the other groups. For the groups without opacifier, the group pigmented with oil paint exhibited the lowest Delta E values in the different aging periods, with a statistical difference. Accelerated aging generated significant chromatic alterations in all groups after 252 hours, except for the colorless and oil groups, both with opacifier (G2 and G6).Conclusions: The opacifier protects facial silicones against color degradation, and oil paint is a stable pigment even without addition of opacifier.en
dc.description.affiliationUNESP, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 Aracatuba, SP, Brazil
dc.description.affiliationUnespUNESP, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 Aracatuba, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 07/58925-9
dc.format.extent205-208
dc.identifierhttp://dx.doi.org/10.1111/j.1532-849X.2010.00657.x
dc.identifier.citationJournal of Prosthodontics-implant Esthetic and Reconstructive Dentistry. Malden: Wiley-blackwell, v. 20, n. 3, p. 205-208, 2011.
dc.identifier.doi10.1111/j.1532-849X.2010.00657.x
dc.identifier.issn1059-941X
dc.identifier.lattes9719883814872582
dc.identifier.orcid0000-0002-3800-3050
dc.identifier.urihttp://hdl.handle.net/11449/15280
dc.identifier.wosWOS:000290147900008
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Prosthodontics-implant Esthetic and Reconstructive Dentistry
dc.relation.ispartofjcr1.745
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSiliconesen
dc.subjectprosthesis pigmentationen
dc.subjectmaxillofacial prosthesisen
dc.titleInfluence of Pigments and Opacifiers on Color Stability of an Artificially Aged Facial Siliconeen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.lattes9719883814872582
unesp.author.lattes2336450644149867[4]
unesp.author.orcid0000-0002-3800-3050[2]
unesp.author.orcid0000-0003-3020-5253[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Materiais Odontológicos e Prótese - FOA