Mineral Ions in the Fluid of Biofilms Formed on Enamel and Dentine Shortly after Sugar Challenge

Autor(es)

Correia, M. F. ^[1] ; Tenuta, L. M. A. ^[1] ; Del Bel Cury, A. A. ^[1] ; Cury, J. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Piracicaba Dent Sch, Piracicaba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Caries Research; v. 46, n. 4, p. 408-412, 2012.
• Citações Web of Science: 2

Resumo

To test the effect of distinct solubilities of dentine and enamel on mineral ion concentration in the biofilm fluid during a sugar-induced pH drop, dental biofilms were formed in situ for 4 days on acrylic (control), dentine or enamel. On the 5th day, they were treated with water (control) or 20% glucose and collected 5 min later. Significantly lower pH values and higher calcium concentrations were found in the biofilm fluid after glucose exposure, without significant differences among the three substrates. During pH drop, biofilm reservoirs release calcium to the fluid, masking the differential solubility between enamel and dentine. Copyright (C) 2012 S. Karger AG, Basel (AU)

• Processo FAPESP: 07/05978-8 - Potencial anticárie dos reservatórios de cálcio, fosfato e fluoreto do biofilme dental
• Beneficiário: Marília Ferreira Correia
• Modalidade de apoio: Bolsas no Brasil - Mestrado