Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/196903
Type: Artigo de periódico
Title: Ca, Pi, And F In The Fluid Of Biofilm Formed Under Sucrose.
Author: Tenuta, L M A
Del Bel Cury, A A
Bortolin, M C
Vogel, G L
Cury, J A
Abstract: Calcium (Ca), inorganic phosphorus (P(i)), and fluoride (F) concentrations are low in the whole plaque biofilm formed under exposure to sucrose. It was hypothesized that this would be reflected in the biofilm fluid, where these low values should greatly influence the de/remineralization process. Dental biofilms were formed in situ over enamel blocks mounted in palatal appliances and exposed 8 times/day to distilled water, glucose+fructose, or sucrose solutions for 14 days. While Ca, P(i), and F concentrations in the whole biofilms were significantly lower in the glucose+fructose and sucrose groups, no effect on biofilm fluid was observed, even after a cariogenic challenge. An increase in whole biofilm mineral ions was observed 24 hrs after the carbohydrate treatments were suspended, but this effect was also not observed in the fluid. These results suggest that there is a homeostatic mechanism that maintains biofilm fluid mineral ion concentration, regardless of its total concentration in the whole biofilm.
Subject: Adult
Analysis Of Variance
Biofilms
Calcium
Cariogenic Agents
Cariostatic Agents
Cross-over Studies
Dental Plaque
Double-blind Method
Exudates And Transudates
Fluorides
Fructose
Glucose
Homeostasis
Humans
Hydrogen-ion Concentration
Ion-selective Electrodes
Phosphorus
Sodium Fluoride
Statistics, Nonparametric
Sucrose
Tooth Demineralization
Tooth Remineralization
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/16931867
Date Issue: 2006
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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