Effectiveness of surface protection for resin-modified glass-ionomer materials

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dc.contributor.authorRibeiro, Ana Paula Granato
dc.contributor.authorSerra, Mônica Campos
dc.contributor.authorPaulillo, Luís Alexandre M. S.
dc.contributor.authorRodrigues Jr., Antônio Luiz
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-28T18:54:26Z
dc.date.available2022-04-28T18:54:26Z
dc.date.issued1999-06-01
dc.description.abstractObjective: The purpose of this study was to evaluate the effectiveness of various surface treatments for resin-modified glass-ionomer restorative materials by determining dye uptake spectrophotometrically. Method and materials: Two hundred twenty-four specimens, 4.1 mm in diameter and 2.0 mm thick, were made of 3 materials: Vitremer, Fuji II LC, and Photac-Fil Aplicap. Specimens were divided into 15 groups. The positive and negative control specimens remained unprotected, while the experimental specimens were protected with Heliobond light-activated bonding resin, Colorama nail varnish, or surface coatings indicated by the manufacturers of the glass-ionomer materials: Finishing Gloss for Vitremer, Fuji Varnish for Fuji II LC, and Ketac Glaze for Photac-Fil. The disks were immersed in 0.05% methylene blue for 24 hours except for the negative control group, which was immersed in deionized water. After 24 hours, the disks were removed, washed, and individually placed in 1 mL of 65% nitric acid for 24 hours. The solutions were centrifuged and the spectrophotometric absorbance was determined at 606 nm. The dye uptake was expressed in micrograms of dye per milliliter, and the results were analyzed with the Kruskal-Wallis test. Results: There were no differences in dye uptake among the 3 resin-modified glass-ionomer restorative materials; however, all of them required surface protection. Conclusion: The best surface protection for the 3 evaluated materials was obtained with Heliobond light-activated bonding resin.en
dc.description.affiliationPiracicaba School of Dentistry University of Campinas, Piracicaba, São Paulo
dc.description.affiliationAraraquara School of Dentistry State University of São Paulo, Araraquara, São Paulo
dc.description.affiliationPiracicaba School of Dentistry-UNICAMP, Av. Limeira, No. 901, C.P. 52, CEP 13 414 018, Piracicaba, SP
dc.format.extent427-431
dc.identifier.citationQuintessence International, v. 30, n. 6, p. 427-431, 1999.
dc.identifier.issn0033-6572
dc.identifier.scopus2-s2.0-0033138974
dc.identifier.urihttp://hdl.handle.net/11449/219219
dc.language.isoeng
dc.relation.ispartofQuintessence International
dc.sourceScopus
dc.subjectDehydration
dc.subjectHybrid material
dc.subjectHydration
dc.subjectResin-modified glass-ionomer material
dc.subjectSurface protection
dc.titleEffectiveness of surface protection for resin-modified glass-ionomer materialsen
dc.typeArtigo

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