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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/133527
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dc.contributor.authorBarreto, Bruno de Castro Ferreira-
dc.contributor.authorCatelan, Anderson-
dc.contributor.authorOkida, Ricardo Coelho-
dc.contributor.authorGonçalves, Gisele Fernanda-
dc.contributor.authorSilva, Gisele Rodrigues-
dc.contributor.authorSantos, Paulo Henrique-
dc.contributor.authorXavier, Tathy Aparecida-
dc.contributor.authorAguiar, Flávio Henrique Baggio-
dc.contributor.authorSoares, Carlos José-
dc.date.accessioned2016-01-28T16:55:29Z-
dc.date.accessioned2016-10-25T21:28:16Z-
dc.date.available2016-01-28T16:55:29Z-
dc.date.available2016-10-25T21:28:16Z-
dc.date.issued2013-
dc.identifierhttp://www.portaldeperiodicos.unisul.br/index.php/JR_Dentistry/article/view/1511-
dc.identifier.citationjournal of research in dentistry tubarão, v. 1, n. 2, p. 135-139, 2013.-
dc.identifier.issn2317-5907-
dc.identifier.urihttp://hdl.handle.net/11449/133527-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/133527-
dc.description.abstractClinical performance of composite resins depends largely on their mechanical properties,and those are influenced by several factors,such as the light-curing mode. The purpose of this study was to evaluate the influence of different light sources on degree of conversion(DC), Knoop hardness(KHN) and plasticization(P) of a composite resin. Disc-shaped specimens (5 x 2 mm) of Esthet-X(Dentsply) methacrylate-based microhybrid composite were light-cured using quartz-tungsten-halogen (QTH) Optilight Plus(Gnatus) or light-emitting diode(LED) Ultraled(Dabi Atlante) curing units at 400 and 340 mW/cm2 of irradiance, respectively. After 24 h, absorption spectra of composite were obtained using Nexus 670(Nicolet)FT-IR spectrometer in order to calculate the DC.The KHN was measured in the HMV-2000(Shimadzu) microhardness tester under 50 g loads for 15 s, and P was evaluated by percentage reductio of hardness after 24 h of alcohol storage. Data were subjected to t-Student test(alpha=0.05).QTH device showed lower P and higher KHN$ than LED (p<0.05), and no difference between the light-curing units was found for DC (p>0.05). The halogen-curing unit with higher irradiance promoted higher KHN and lower softening in alcohol than LED.en
dc.format.extent135-139-
dc.language.isoeng-
dc.sourceCurrículo Lattes-
dc.titleEffect of different light sources on degree of conversion, hardness and plasticization of a compositeen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)-
dc.contributor.institutionUniversidade de Campinas-
dc.description.affiliationDepartment of Operative Dentistry and Dental Materials, Dental School, University of Uberlandia, Uberlandia, MG, Brazil-
dc.description.affiliationDepartment of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil-
dc.description.affiliationDepartment of Restorative Dentistry, Araçatuba School of Dentistry, State University of São Paulo (UNESP), Araçatuba, SP, Brazil-
dc.description.affiliationDepartment of Dental Materials and Prostodontics, Araçatuba School of Dentistry, State University of São Paulo (UNESP), Araçatuba, SP, Brasil-
dc.description.affiliationUnespDepartment of Restorative Dentistry, Araçatuba School of Dentistry, State University of São Paulo (UNESP), Araçatuba, SP, Brazil-
dc.description.affiliationUnespDepartment of Dental Materials and Prostodontics, Araçatuba School of Dentistry, State University of São Paulo (UNESP), Araçatuba, SP, Brasil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofjournal of research in dentistry tubarão-
dc.identifier.lattes4629404319391359-
dc.identifier.lattes4301268775018864-
dc.identifier.lattes2201243962159442-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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