Effect of iron on inhibition of acid demineralisation of bovine dental enamel in vitro

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dc.contributor.authorRabelo Buzalaf, Marilia Afonso
dc.contributor.authorItaliani, Flavia de Moraes
dc.contributor.authorKato, Melissa Thiemi
dc.contributor.authorRodrigues Martinhon, Cleide Cristina
dc.contributor.authorMagalhaes, Ana Carolina
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:24:33Z
dc.date.available2014-05-20T15:24:33Z
dc.date.issued2006-10-01
dc.description.abstractObjectives: Iron ions (Fe2+) have been shown to be cariostatic in many studies particularly by their ability to reduce bacterial metabolism. Nevertheless, the role of iron ions on dissolution of enamel is unexplored. The aim of the present study was therefore to investigate the protective effect of increasing concentrations (0-120 mmol/L) of Fe2+ on the dissolution of enamel.Design: Enamel powder was subjected to acetic acid made with increasing concentrations with respect to FeSO4 center dot 7H(2)O. In order to determine the amount of enamel dissolved, the phosphate released in the medium was analysed spectrophotometrically using the Fiske-Subarrow method. Data were tested using Kruskall-Wall and Dunn's tests (p < 0.05). The degree of protection was found to approach maximum at about 15 mmol/L Fe2+. Higher concentrations of Fe2+ did not have an extra effect on inhibition of dissolution of enamel powder. In the next step, the protective effect of 15 mmol/L Fe2+ against mineral dissolution of the bovine enamel was evaluated using a simple abiotic model system. Enamel blocks were exposed to a sequence of seven plastic vials, each containing 1 mL of 10 mmol/L acetic acid. The acid in vial 4 was made 15 mmol/L with respect to FeSO4 center dot 7H(2)O. The mineral dissolved during each challenge was thus determined by phosphate released as described above. Data were tested using two-way ANOVA (p < 0.05). Results: Lower demineralisation (around 45%) was found in vial 4 (with Fe) that continued stable until vial 7.Conclusions: Thus, our data suggest that Fe2+, can be effective on inhibition of dissolution of enamel and that this effect may be durable. (c) 2006 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv São Paulo, Bauru Sch Dent, Dept Biol Sci, BR-17012901 Bauru, SP, Brazil
dc.description.affiliationSão Paulo State Univ, Dept Pediat Dent, Sch Dent Aracatuba, BR-1193 Aracatuba, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Dept Pediat Dent, Sch Dent Aracatuba, BR-1193 Aracatuba, SP, Brazil
dc.format.extent844-848
dc.identifierhttp://dx.doi.org/10.1016/j.archoralbio.2006.04.007
dc.identifier.citationArchives of Oral Biology. Oxford: Pergamon-Elsevier B.V., v. 51, n. 10, p. 844-848, 2006.
dc.identifier.doi10.1016/j.archoralbio.2006.04.007
dc.identifier.issn0003-9969
dc.identifier.urihttp://hdl.handle.net/11449/35138
dc.identifier.wosWOS:000241292400003
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofArchives of Oral Biology
dc.relation.ispartofjcr2.050
dc.relation.ispartofsjr0,752
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectironpt
dc.subjectenamelpt
dc.subjectdemineralisationpt
dc.subjectcariespt
dc.titleEffect of iron on inhibition of acid demineralisation of bovine dental enamel in vitroen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Odontologia Infantil e Social - FOA