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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authoremaildayoli87@gmail.compt_BR
dc.typeArtigopt_BR
dc.titleEffect Of Nanofiller Loading On Cure Efficiency And Potential Color Change Of Model Compositesen
dc.contributor.authorRamos Salles de Oliveirapt_BR
dc.contributor.authorDayane Carvalho; de Menezespt_BR
dc.contributor.authorLivia Rodrigues; Gattipt_BR
dc.contributor.authorAlexandre; Sobrinhopt_BR
dc.contributor.authorLourenco Correr; Ferracanept_BR
dc.contributor.authorJack L.; Coelho Sinhoretipt_BR
dc.contributor.authorMario Alexandrept_BR
unicamp.authorCoelho Sinhoreti, Mario Alexandre] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Restorat Dent, Piracicaba, SP, Brazilpt_BR
unicamp.author.external[Ramos Salles de Oliveira, Dayane Carvalhopt_BR
unicamp.author.externalFerracane, Jack L.] Oregon Hlth & Sci Univ, Sch Dent, Dept Restorat Dent, Portland, OR 97201 USApt_BR
unicamp.author.external[Ramos Salles de Oliveira, Dayane Carvalhopt_BR
unicamp.author.externalGatti, Alexandrept_BR
unicamp.author.externalSobrinho, Lourenco Correrpt_BR
unicamp.author.external[de Menezes, Livia Rodrigues] Univ Fed Rio de Janeiro, Inst Macromol, Rio De Janeiro, RJ, Brazilpt_BR
dc.description.abstractTo evaluate the effect of nanofiller loading on cure efficiency and potential color change of experimental composites. Materials and MethodsFour different polymeric materials were produced using the same organic matrix blend. To this matrix, different amounts of 0.05 m fumed silica filler were added: no filler, 13, 52, and 65wt%. Fourier transform infrared spectroscopy was used to evaluate the degree of conversion (DC) for each composite using near-IR analysis, and spectrophotometry according to CIELab chromatic space was used to evaluate the color change.To induce color change, composites were artificially aged with exposure to cycles of UV-B light for 300 hours. Trasmission electron microscopy was used to illustrate nanoffiler aglomeration in the resin matrix. Data were analyzed using correlation analysis (=0.05). ResultsThere was an excellent inverse linear correlation between filler wt% and either DC or color change. Greater changes to red (+a) and yellow (+b) were observed as the filler wt% increased. ConclusionsA higher percentage of nano-sized filler particles in dental resin composites directly affects their cure efficiency and potential for color change. Clinical SignificanceThe increase in filler particle loading negatively affected monomer conversion and color stability of resin-based composites. As reduced filler loading results in poorer mechanical properties, to enhance color stability, resin-based composites should be formulated by making the refractive index of the polymeric matrix more closely match that of the filler throughout the polymerization process. (J Esthet Restor Dent, 2016)en
dc.relation.ispartofJournal of Esthetic and Restorative Dentistrypt_BR
dc.publisherWiley-Blackwellpt_BR
dc.publisherHobokenpt_BR
dc.date.issued2016pt_BR
dc.date.monthofcirculationmaio-julpt_BR
dc.identifier.citationJournal Of Esthetic And Restorative Dentistry. Wiley-blackwell, v. 28, p. 171 - 177, 2016.pt_BR
dc.language.isoEnglishpt_BR
dc.description.volume28pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage171pt_BR
dc.description.lastpage177pt_BR
dc.rightsfechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn1496-4155pt_BR
dc.identifier.eissn1708-8240pt_BR
dc.identifier.wosidWOS:000378635900004pt_BR
dc.identifier.doi10.1111/jerd.12189pt_BR
dc.identifier.urlhttp://onlinelibrary.wiley.com/doi/10.1111/jerd.12189/abstractpt_BR
dc.description.sponsorshipFAPESP [2013/04241-2]pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.date.available2017-11-13T13:21:32Z-
dc.date.accessioned2017-11-13T13:21:32Z-
dc.description.provenanceMade available in DSpace on 2017-11-13T13:21:32Z (GMT). No. of bitstreams: 1 000378635900004.pdf: 340613 bytes, checksum: 29c9c52db2c0bf50ab8a79f148fcaaa9 (MD5) Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/327770-
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