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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/55585
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dc.creatorMarcelo Coelho Goiatopt_BR
dc.creatorBruna Carolina Rossatti Zuccolottipt_BR
dc.creatorAmália Morenopt_BR
dc.creatorAljomar José Vechiato Filhopt_BR
dc.creatorMarcela Borghi Paulinipt_BR
dc.creatorDaniela Micheline dos Santospt_BR
dc.date.accessioned2023-06-30T11:50:37Z-
dc.date.available2023-06-30T11:50:37Z-
dc.date.issued2016-
dc.citation.volume7pt_BR
dc.citation.spage307pt_BR
dc.citation.epage311pt_BR
dc.identifier.doihttps://doi.org/10.4103%2F0976-237X.188543pt_BR
dc.identifier.issn0976237Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/55585-
dc.description.resumoObjectives: This study aimed to evaluate the influence of the incorporation of pigments on surface hardness of four acrylic resins subjected to thermocycling and analyze their elemental composition using energy dispersive X-ray spectroscopy (EDS). Materials and Methods: Twenty-one discs of each resin were fabricated, whereas seven had no additive, seven had 3% of nanoscale pigments and last seven had 10% of them. The percentage was obtained by measuring the total weight of each resin disc. Besides, seven discs composed by only nanoscale pigments were also fabricated, totalizing 91 discs. The pigment was weighed by using an analytical balance (BEL Analytical Equipment, SP, Brazil). The surface hardness was measured through a hardness tester machine before and after thermocycling (5–55°C, for 2000 cycles). Data were analyzed by ANOVA and Tukey's test (P < 0.05). The chemical composition of the discs composed only by nanoscale pigments was analyzed with EDS test. Results: Hardness of all resins decreased after thermocycling. The lowest values were observed on the discs with 3% of nanoscale pigments and discs fabricated only with them. EDS showed the presence of titanium dioxide. Conclusion: Discs with 7% of pigments (after thermocycling) showed higher hardness values.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE CLÍNICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofContemporary Clinical Dentistrypt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherAcrylic resinspt_BR
dc.subject.otherGeriatricspt_BR
dc.subject.otherDenture basespt_BR
dc.subject.otherHardnesspt_BR
dc.subject.otherSpectrometry, x-ray emissionpt_BR
dc.titleEffect of nanoscale particles incorporation on microhardness of polymers for oral prosthesispt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5004541/pt_BR
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