Effect of salivary stimulation on erosion of human and bovine enamel subjected or not to subsequent abrasion: An in situ/ex vivo study

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dc.contributor.authorRios, D.
dc.contributor.authorHonorio, H. M.
dc.contributor.authorMagalhaes, A. C.
dc.contributor.authorDelbem, ACB
dc.contributor.authorMachado, MAAM
dc.contributor.authorSilva, SMB
dc.contributor.authorBuzalaf, MAR
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-02-26T17:25:02Z
dc.date.accessioned2014-05-20T13:43:57Z
dc.date.available2014-02-26T17:25:02Z
dc.date.available2014-05-20T13:43:57Z
dc.date.issued2006-01-01
dc.description.abstractThis in situ/ex vivo study evaluated whether saliva stimulated by chewing gum could prevent or reduce the wear and the percent change in microhardness (%SMH) of bovine and human enamel submitted to erosion followed by brushing abrasion immediately or after 1 h. During 2 experimental 7-day crossover phases, 9 previously selected volunteers wore intraoral palatal devices, with 12 enamel specimens (6 human and 6 bovine). In the first phase, the volunteers immersed the device for 5 min in 150 ml of cola drink, 4 times per day (at 8, 12, 16 and 20 h). Immediately after the immersions, no treatment was performed in 4 specimens, 4 other specimens were immediately brushed (0 min) using a fluoride dentifrice, and the device was replaced into the mouth. After 60 min, the remaining 4 specimens were brushed. In the second phase, the procedures were repeated, but after the immersions, the volunteers stimulated the salivary flow rate by chewing a sugar-free gum for 30 min. Changes in wear and %SMH were measured. ANOVA and Tukey's test showed statistical differences (p < 0.05) for the following comparisons. The chewing gum promoted less wear and %SMH. A decreasing %SMH and an increasing enamel wear were observed in the following conditions: erosion only, 60 min and 0 min. The human enamel presented greater %SMH and less wear compared to bovine enamel. The data suggest that the salivary stimulation after an erosive or erosive/abrasive attack can reduce the dental wear and the %SMH.en
dc.description.affiliationUniv São Paulo, Fac Dent Bauru, Dept Pediat Dent, Bauru, Brazil
dc.description.affiliationUniv São Paulo, Fac Dent Bauru, Dept Orthodont & Publ Hlth, Bauru, Brazil
dc.description.affiliationUniv São Paulo, Fac Dent Bauru, Dept Biol Sci, Bauru, Brazil
dc.description.affiliationUNESP, Sch Dent Aracatuba, Dept Pediat Dent, Aracatuba, Brazil
dc.description.affiliationUnespUNESP, Sch Dent Aracatuba, Dept Pediat Dent, Aracatuba, Brazil
dc.format.extent218-223
dc.identifierhttp://dx.doi.org/10.1159/000092229
dc.identifier.citationCaries Research. Basel: Karger, v. 40, n. 3, p. 218-223, 2006.
dc.identifier.doi10.1159/000092229
dc.identifier.issn0008-6568
dc.identifier.orcid0000-0002-8159-4853
dc.identifier.urihttp://hdl.handle.net/11449/15394
dc.identifier.wosWOS:000237697700007
dc.language.isoeng
dc.publisherKarger
dc.relation.ispartofCaries Research
dc.relation.ispartofjcr2.188
dc.relation.ispartofsjr1,108
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjecttoothbrush abrasionpt
dc.subjecterosionpt
dc.subjectdental wearpt
dc.subjectdemineralizationpt
dc.subjectenamelpt
dc.subjectsoft drinkspt
dc.subjectstimulated salivapt
dc.titleEffect of salivary stimulation on erosion of human and bovine enamel subjected or not to subsequent abrasion: An in situ/ex vivo studyen
dc.typeArtigo
dcterms.licensehttp://www.karger.com/Services/RightsPermissions
dcterms.rightsHolderKarger
unesp.author.lattes0421571920582994[4]
unesp.author.orcid0000-0002-8159-4853[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Odontologia Infantil e Social - FOA