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dc.typeArtigo de periódicopt_BR
dc.titleDye Staining Gap Test: An Alternative Method For Assessing Marginal Gap Formation In Composite Restorations.pt_BR
dc.contributor.authorCaroline Bruschi Alonso, Robertapt_BR
dc.contributor.authorMaria Correr, Giselept_BR
dc.contributor.authorGonçalves Cunha, Leonardopt_BR
dc.contributor.authorFlávia Sanches Borges, Anapt_BR
dc.contributor.authorMaria Puppin-Rontani, Reginapt_BR
dc.contributor.authorAlexandre Coelho Sinhoreti, Máriopt_BR
unicamp.authorRoberta Caroline Bruschi Alonso, Dental Materials Area, Department of Restorative Dentistry, Piracicaba Dental School, UNICAMP, Piracicaba, SP, Brazil. robalonso@yahoo.compt_BR Maria Correr,pt Gonçalves Cunha,pt Flávia Sanches Borges,pt Maria Puppin-Rontani,ptário Alexandre Coelho Sinhoreti,pt
dc.subjectColoring Agentspt_BR
dc.subjectComposite Resinspt_BR
dc.subjectDental Cavity Preparationpt_BR
dc.subjectDental Marginal Adaptationpt_BR
dc.subjectDental Polishingpt_BR
dc.subjectDental Restoration, Permanentpt_BR
dc.subjectDentin-bonding Agentspt_BR
dc.subjectImage Processing, Computer-assistedpt_BR
dc.subjectMicroscopy, Electron, Scanningpt_BR
dc.subjectReplica Techniquespt_BR
dc.subjectReproducibility Of Resultspt_BR
dc.subjectSurface Propertiespt_BR
dc.description.abstractThe aim of this study was to evaluate and compare marginal adaptation of composite restorations assessed by a dye staining method and by scanning electron microscopy (SEM) analysis. Twenty bovine incisors were selected and ground flat to expose dentin. Two cylindrical cavities were prepared on the central area of flattened surfaces. Single bond adhesive system was applied in accordance with the manufacturer's instructions and the cavities were filled with Filtek Z250 or Filtek Flow. The specimens were polished and replicas were obtained in epoxy resin. The replicas were observed by SEM for marginal quality/quantity evaluation. Caries detector was then applied on each specimen for 5 s to verify marginal adaptation through dye staining of the formed gaps on the outer margins. Images of the stained gaps were transferred to a computer measurement program to determine gap length. The length of the gap was expressed as the percentage of total length of the margins observed. Data were submitted to two-way ANOVA and Pearson correlation. Filtek flow showed 36% and 34% and Filtek Z250 27% and 29% of gap in the margins when evaluated by SEM analysis and by the dye staining test, respectively. There was no difference between the composites, regardless of the evaluation technique. There was a strong positive correlation (r=0.83) between the results obtained with the tested methods to assess marginal gap. Dye staining the gaps can be used with good reliability to evaluate the gap formation in composite restorations.en
dc.relation.ispartofActa Odontologica Scandinavicapt_BR
dc.relation.ispartofabbreviationActa Odontol. Scand.pt_BR
dc.identifier.citationActa Odontologica Scandinavica. v. 64, n. 3, p. 141-5, 2006-Jun.pt_BR
dc.description.provenanceMade available in DSpace on 2015-11-27T13:05:35Z (GMT). No. of bitstreams: 1 pmed_16809190.pdf: 207340 bytes, checksum: 4ca238d5bfc02490d4e804c30da7b75c (MD5) Previous issue date: 2006en
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