Color stability of maxillofacial silicone with nanoparticle pigment and opacifier submitted to disinfection and artificial aging

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorHaddad, Marcela Filie
dc.creatorGoiato, Marcelo Coelho
dc.creatorSantos, Daniela Micheline dos
dc.creatorMoreno, Amalia
dc.creatorD'almeida, Nuno Filipe
dc.creatorPesqueira, Aldieris Alves
dc.date2013-09-30T18:30:25Z
dc.date2014-05-20T13:43:54Z
dc.date2013-09-30T18:30:25Z
dc.date2014-05-20T13:43:54Z
dc.date2011-09-01
dc.date.accessioned2017-04-05T20:48:21Z
dc.date.available2017-04-05T20:48:21Z
dc.identifierJournal of Biomedical Optics. Bellingham: Spie-soc Photo-optical Instrumentation Engineers, v. 16, n. 9, p. 6, 2011.
dc.identifier1083-3668
dc.identifierhttp://hdl.handle.net/11449/15360
dc.identifier10.1117/1.3625401
dc.identifierWOS:000296707100009
dc.identifierWOS000296707100009.pdf
dc.identifier0000-0002-3800-3050
dc.identifierhttp://dx.doi.org/10.1117/1.3625401
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/862386
dc.descriptionThe purpose of this study was to evaluate the color stability of a maxillofacial elastomer with the addition of a nanoparticle pigment and/or an opacifier submitted to chemical disinfection and artificial aging. Specimens were divided into four groups (n = 30): group I: silicone without pigment or opacifier, group II: ceramic powder pigment, group III: Barium sulfate (BaSO(4)) opacifier, and group IV: ceramic powder and BaSO(4) opacifier. Specimens of each group (n = 10) were disinfected with effervescent tablets, neutral soap, or 4% chlorhexidine gluconate. Disinfection was done three times a week during two months. Afterward, specimens were submitted to different periods of artificial aging. Color evaluation was initially done, after 60 days (disinfection period) and after 252, 504, and 1008 h of artificial aging with aid of a reflection spectrophotometer. Data were analyzed by three-way ANOVA and Tukey test (alpha = 0.05). The isolated factor disinfection did not statistically influence the values of color stability among groups. The association between pigment and BaSO(4) opacifier (GIV) was more stable in relationship to color change (Delta E). All values of Delta E obtained, independent of the disinfectant and the period of artificial aging, were considered acceptable in agreement with the norms presented in literature. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3625401]
dc.languageeng
dc.publisherSpie-soc Photo-optical Instrumentation Engineers
dc.relationJournal of Biomedical Optics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectspectrophotometer
dc.subjectelastomers
dc.subjectnanoparticle
dc.subjectdisinfection
dc.subjectcolor stability
dc.subjectartificial aging
dc.titleColor stability of maxillofacial silicone with nanoparticle pigment and opacifier submitted to disinfection and artificial aging
dc.typeOtro


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