Visual evaluation of color stability after accelerated aging of pigmented and nonpigmented silicones to be used in facial prostheses

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dc.contributor.authorMancuso, Daniela Nardi [UNESP]
dc.contributor.authorGoiato, Marcelo Coelho [UNESP]
dc.contributor.authorDekon, Stefan Fiuza de Carvalho [UNESP]
dc.contributor.authorGennari-Filho, Humberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:23:51Z
dc.date.available2014-05-27T11:23:51Z
dc.date.issued2009-01-01
dc.description.abstractObjectives: The objective of this study was to evaluate by a visual method of comparison the color stability of nonpigmented and pigmented facial silicones after accelerated aging. Materials and Methods: Two kinds of silicones were used in this study; one specifically formulated for facial prostheses and the other an acetic silicone for industrial use. Twenty-four trial bodies were made for each silicone. These were divided into colorless and intrinsically pigmented groups: ceramic, make-up, and iron oxide. The groups were submitted to accelerated aging for nonmetallic materials. An initial reading and subsequent readings were made at 163, 351, 692, and 1000 hours using a visual method of comparison. The values were annotated in a spreadsheet by two observers, according to scores elaborated for this study. Results: All groups presented color stability in the visual method. According to the results obtained and analyzed in this study, we can conclude that both silicones, Silastic 732 RTV and Silastic MDX 4-4210, behaved similarly, they can therefore be indicated for use in maxillofacial prosthesis. The time factor of aging influenced negatively, independently of the pigmentation, or lack of it, and of silicones and no group had visually noticeable alterations in any of the accelerated aging time, independently of the addition or not of pigments.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Araçatuba Dental School UNESP - Sao Paulo State University, Araçatuba, Sao Paulo
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Araçatuba Dental School UNESP - Sao Paulo State University, Araçatuba, Sao Paulo
dc.format.extent77-80
dc.identifierhttp://dx.doi.org/10.4103/0970-9290.49073
dc.identifier.citationIndian Journal of Dental Research, v. 20, n. 1, p. 77-80, 2009.
dc.identifier.doi10.4103/0970-9290.49073
dc.identifier.issn0970-9290
dc.identifier.issn1998-359X
dc.identifier.lattes9719883814872582
dc.identifier.lattes3215571441204704
dc.identifier.orcid0000-0002-3800-3050
dc.identifier.scopus2-s2.0-64249125099
dc.identifier.urihttp://hdl.handle.net/11449/70897
dc.language.isoeng
dc.relation.ispartofIndian Journal of Dental Research
dc.relation.ispartofsjr0,266
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAccelerated aging
dc.subjectColor perception
dc.subjectMaxillofacial prosthesis
dc.subjectProsthesis pigmentation
dc.subjectSilicones
dc.subjectcoloring agent
dc.subjectdimeticone
dc.subjectMDX 4 4210
dc.subjectMDX 4-4210
dc.subjectsilastic
dc.subjectsilicone derivative
dc.subjectchemistry
dc.subjectcolor
dc.subjectcolor vision
dc.subjectcomparative study
dc.subjectmaterials testing
dc.subjectmaxillofacial prosthesis
dc.subjectprosthesis
dc.subjecttime
dc.subjectColor
dc.subjectColor Perception
dc.subjectColoring Agents
dc.subjectDimethylpolysiloxanes
dc.subjectMaterials Testing
dc.subjectMaxillofacial Prosthesis
dc.subjectProsthesis Coloring
dc.subjectProsthesis Design
dc.subjectSilicone Elastomers
dc.subjectTime Factors
dc.titleVisual evaluation of color stability after accelerated aging of pigmented and nonpigmented silicones to be used in facial prosthesesen
dc.typeArtigo
dcterms.licensehttp://www.jpgmonline.com/contributors.asp
unesp.author.lattes9719883814872582
unesp.author.lattes3215571441204704
unesp.author.orcid0000-0002-3800-3050[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Materiais Odontológicos e Prótese - FOA