Effect of Ultrasonic Excitation on the Porosity of Glass Ionomer Cement: A Scanning Electron Microscope Evaluation

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dc.contributor.authorColdebella, Carmen Regina [UNESP]
dc.contributor.authorSantos-Pinto, Lourdes Aparecida Martins dos [UNESP]
dc.contributor.authorCilense Zuanon, Angela Cristina [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:31:22Z
dc.date.accessioned2014-05-20T13:44:53Z
dc.date.available2013-09-30T18:31:22Z
dc.date.available2014-05-20T13:44:53Z
dc.date.issued2011-01-01
dc.description.abstractBackground: Ultrasonic excitation (US) was applied to glass ionomer cement (GIC) during early set time to increase the advantageous properties of this material. Purpose: The aim of this in vitro study was to assess the inner porosity of GIC after US. Study design: A total of 16 specimens, for each material, were prepared from high-viscosity GIC Fuji IX GP, Ketac Molar, and Ketac Molar Easymix. Half of these specimens (n = 8) received 30 s of US during the initial cement setting. After completion of the material setting, specimens were fractured and observed by scanning electronic microscopy to quantitatively assay porosity inside the material using Image J software. Results: Statistical data analysis revealed that US reduced the porosity for all tested materials (P <= 0.05). The following reductions (expressed in percentages) were achieved: Fuji IX-from 3.9% to 2.8%; Ketac Molar Easy Mix-from 4.4% to 2.6%, and Ketac Molar-from 2.4% to 1.6%. Conclusion: Under the tested conditions, US was an effective method for porosity reduction inside the material. Microsc. Res. Tech. 74:54-57, 2011. (C) 2010 Wiley-Liss, Inc.en
dc.description.affiliationSão Paulo State Univ, Araraquara Dent Sch, Dept Orthodont & Pediat Dent, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Araraquara Dent Sch, Dept Orthodont & Pediat Dent, BR-14801903 Araraquara, SP, Brazil
dc.format.extent54-57
dc.identifierhttp://dx.doi.org/10.1002/jemt.20873
dc.identifier.citationMicroscopy Research and Technique. Hoboken: Wiley-liss, v. 74, n. 1, p. 54-57, 2011.
dc.identifier.doi10.1002/jemt.20873
dc.identifier.issn1059-910X
dc.identifier.lattes8672541377335694
dc.identifier.orcid0000-0003-2386-842X
dc.identifier.urihttp://hdl.handle.net/11449/15750
dc.identifier.wosWOS:000285976000008
dc.language.isoeng
dc.publisherWiley-liss
dc.relation.ispartofMicroscopy Research and Technique
dc.relation.ispartofjcr1.087
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectporosityen
dc.subjectultrasonicsen
dc.subjectglass ionomer cementen
dc.titleEffect of Ultrasonic Excitation on the Porosity of Glass Ionomer Cement: A Scanning Electron Microscope Evaluationen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-liss
unesp.author.lattes8672541377335694[3]
unesp.author.orcid0000-0003-2386-842X[2]
unesp.author.orcid0000-0003-3131-0805[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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