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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/51873
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dc.creatorRenan Aparecido Fernandespt_BR
dc.creatorHenrico Badaoui Strazzi-Sahyonpt_BR
dc.creatorThaís Yumi Umeda Suzukipt_BR
dc.creatorAndré Luiz Fraga Brisopt_BR
dc.creatorPaulo Henrique dos Santospt_BR
dc.date.accessioned2023-04-12T20:27:45Z-
dc.date.available2023-04-12T20:27:45Z-
dc.date.issued2020-01-10-
dc.citation.volume45pt_BR
dc.citation.issue01pt_BR
dc.citation.spage01pt_BR
dc.citation.epage08pt_BR
dc.identifier.doihttps://doi.org/10.5395/rde.2020.45.e12pt_BR
dc.identifier.issn22347666pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/51873-
dc.description.resumoObjectives The aim of this in vitro study was to evaluate the microhardness and surface roughness of composite resins before and after tooth bleaching procedures. Materials and methods Sixty specimens were prepared of each composite resin (Filtek Supreme XT and Opallis), and BisCover LV surface sealant was applied to half of the specimens. Thirty enamel samples were obtained from the buccal and lingual surfaces of human molars for use as the control group. The surface roughness and microhardness were measured before and after bleaching procedures with 35% hydrogen peroxide or 16% carbamide (n = 10). Data were analyzed using 1-way analysis of variance and the Fisher test (α = 0.05). Results Neither hydrogen peroxide nor carbamide peroxide treatment significantly altered the hardness of the composite resins, regardless of surface sealant application; however, both treatments significantly decreased the hardness of the tooth samples (p < 0.05). The bleaching did not cause any change in surface roughness, with the exception of the unsealed Opallis composite resin and dental enamel, both of which displayed an increase in surface roughness after bleaching with carbamide peroxide (p < 0.05). Conclusions The microhardness and surface roughness of enamel and Opallis composite resin were influenced by bleaching procedurespt_BR
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulopt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofRestorative Dentistry & Endodonticspt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherComposite resinspt_BR
dc.subject.otherHardnesspt_BR
dc.subject.otherSurface propertiespt_BR
dc.subject.otherTooth bleachingpt_BR
dc.subject.otherToothpt_BR
dc.subject.otherDental enamelpt_BR
dc.titleEffect of dental bleaching on the microhardness and surface roughness of sealed composite resinspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://europepmc.org/article/MED/32110540#full-text-linkspt_BR
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