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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampGuerra, Carolina de Souza-
dc.contributor.authorunicampCury, Jaime Aparecido-
dc.typeArtigopt_BR
dc.titleLead deposition in bovine enamel during a pH-cycling regimen simulating the caries processpt_BR
dc.contributor.authorMolina, G.F.-
dc.contributor.authorCosta De Almeida, G.R.-
dc.contributor.authorDe Souza Guerra, C.-
dc.contributor.authorCury, J.A.-
dc.contributor.authorDe Almeida, A.P.-
dc.contributor.authorBarroso, R.C.-
dc.contributor.authorGerlach, R.F.-
dc.subjectEsmalte dentáriopt_BR
dc.subjectCárie dentáriapt_BR
dc.subject.otherlanguageDental enamelpt_BR
dc.subject.otherlanguageDental cariespt_BR
dc.description.abstractLike fluoride, lead (Pb) accumulates on the enamel surface pre-eruptively, but it is not yet known whether it also deposits on enamel while dental caries is developing. This study evaluates Pb distribution in bovine enamel slabs submitted to a pH-cycling regimen simulating the caries process. The slabs were subjected to 8 cycles of de-and remineralizing conditions, and Pb (as acetate salt) was added to the de-and remineralized solutions at concentrations of 30 μg/l (experimental group, E1) and 300 μg/l (experimental group, E2). The control group (C) consisted of solutions to which Pb was not added. After the pH cycling, 100-μm sections of the slabs were analyzed by polarizing microscopy, to observe the extent of caries-like lesions, and these sections were used for Pb estimation by Synchrotron radiation X-ray microfluorescence. Caries lesions were observed along all superficial enamel surfaces to an extent of 120 μm. A Pb concentration gradient was observed in enamel, which decreased toward dentine. The highest Pb signals were observed for group E2, and the differences were statistically significant at enamel depths of 0 (C vs. E2; p = 0.029) and 50 μm (C vs. E2 and E1 vs. E2; p = 0.029). In conclusion, this study suggests that if Pb is present in the oral environment, it may deposit in enamel during the caries process.pt_BR
dc.relation.ispartofCaries researchpt_BR
dc.relation.ispartofabbreviationCaries res.pt_BR
dc.publisher.cityBaselpt_BR
dc.publisher.countrySuiçapt_BR
dc.publisherKargerpt_BR
dc.date.issued2011-
dc.date.monthofcirculationNov.pt_BR
dc.language.isoengpt_BR
dc.description.volume45pt_BR
dc.description.issuenumber5pt_BR
dc.description.firstpage469pt_BR
dc.description.lastpage474pt_BR
dc.rightsFechadopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn0008-6568pt_BR
dc.identifier.eissn1421-976Xpt_BR
dc.identifier.doi10.1159/000330602pt_BR
dc.identifier.urlhttps://www.karger.com/Article/FullText/330602pt_BR
dc.date.available2020-09-08T13:51:26Z-
dc.date.accessioned2020-09-08T13:51:26Z-
dc.description.provenanceSubmitted by Bruna Maria Campos da Cunha (bcampos@unicamp.br) on 2020-09-08T13:51:26Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-04T15:12:50Z : No. of bitstreams: 1 2-s2.0-80052593239.pdf: 440566 bytes, checksum: 41bf041e763363aa671ce0a10a631e59 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-09-08T13:51:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2011en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/348831-
dc.contributor.departmentSem informaçãopt_BR
dc.contributor.departmentDepartamento de Ciências Fisiológicaspt_BR
dc.contributor.unidadeFaculdade de Odontologia de Piracicabapt_BR
dc.contributor.unidadeFaculdade de Odontologia de Piracicabapt_BR
dc.subject.keywordSynchrotron radiation X-ray microfluorescencept_BR
dc.identifier.source2-s2.0-80052593239pt_BR
dc.creator.orcidSem informaçãopt_BR
dc.creator.orcid0000-0003-1046-5605pt_BR
dc.type.formArtigo originalpt_BR
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