Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/341703
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampYanikian, Cristiane Rumi Fujiwara-
dc.contributor.authorunicampMartins, Luís Roberto Marcondes-
dc.typeArtigopt_BR
dc.titleInfluence of silica nanocoating on stain susceptibility and superficial integrity of dimethacrylate-based compositespt_BR
dc.contributor.authorYanikian, Cristiane R. F.-
dc.contributor.authorStape, Thiago H. S.-
dc.contributor.authorTezvergil-Mutluay, Arzu-
dc.contributor.authorMartins, Luis R. M.-
dc.subjectAspereza de superfíciept_BR
dc.subject.otherlanguageSurface roughnesspt_BR
dc.description.abstractThe aim of this study was to investigate the ability of a novel silica (SiO2)-based nanocoating approach to extend the superficial integrity of current composites. Cylindrical discs (7 x 2 mm) were produced from nanohybrid and nanofilled composites. Specimens in control groups were not coated, but SiO2 nanocoating was performed on specimens in experimental groups (n = 8). Specimens were stored for 24 h in distilled water at 37 degrees C (baseline) and then artificially aged for 15, 90, or 180 d in a low-pH staining solution. Surface roughness (Ra) was measured using a profilometer, and a goniometer was used to determine surface free energy (SFE). Color change was evaluated by a reflectance spectrophotometer, applying the color distance metric, Delta E-00, according to the Commission Internationale de l'Eclairage (CIE) L*a*b* coordinates. Data were subjected to repeated-measures anova and the Tukey post-hoc test. Composites presented visually perceptible color changes (Delta E-00 > 0.81) as early as 15 d of aging, with significantly higher Delta E-00 values recorded over time. Nanocoating with SiO2 significantly reduced the SFE of composites at all storage times, and significantly lower Ra values were identified after aging. Nanohybrid and nanofilled composites were susceptible to substantial hydrolytic superficial degradation and staining, which was dramatically attenuated by the proposed SiO2 nanocoating approach. Nanocoating effectively lowered the SFE of composites, thus minimizing water-composite interactions, which contributed to reduced superficial deterioration and lower stain susceptibility over timept_BR
dc.relation.ispartofEuropean journal of oral sciencespt_BR
dc.relation.ispartofabbreviationEur. j. oral sci.pt_BR
dc.publisher.cityHoboken, NJpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherWileypt_BR
dc.date.issued2019-
dc.date.monthofcirculationAug.pt_BR
dc.language.isoengpt_BR
dc.description.volume127pt_BR
dc.description.issuenumber4pt_BR
dc.description.firstpage361pt_BR
dc.description.lastpage368pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0909-8836pt_BR
dc.identifier.eissn1600-0722pt_BR
dc.identifier.doi10.1111/eos.12627pt_BR
dc.identifier.urlhttps://onlinelibrary.wiley.com/doi/full/10.1111/eos.12627pt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber2013/18019-0pt_BR
dc.date.available2020-05-19T14:55:02Z-
dc.date.accessioned2020-05-19T14:55:02Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-05-19T14:55:02Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:16:34Z : No. of bitstreams: 1 000474264200001.pdf: 3523201 bytes, checksum: 57a557fb2000e7f084e4ab34bc29a535 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-19T14:55:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/341703-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Odontologia Restauradorapt_BR
dc.contributor.unidadeFaculdade de Odontologia de Piracicabapt_BR
dc.contributor.unidadeFaculdade de Odontologia de Piracicabapt_BR
dc.subject.keywordColor changept_BR
dc.subject.keywordDurabilitypt_BR
dc.subject.keywordHydrophobic coatingpt_BR
dc.subject.keywordSurface free energypt_BR
dc.identifier.source000474264200001pt_BR
dc.creator.orcid0000-0002-2086-2279pt_BR
dc.creator.orcid0000-0001-6376-4540pt_BR
dc.type.formArtigo originalpt_BR
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