Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64310
Type: Artigo de periódico
Title: Effect of sucrose on the selection of mutans streptococci and lactobacilli in dental biofilm formed in situ
Author: Tenuta, LMA
Ricomini, AP
Cury, AAD
Cury, JA
Abstract: Microorganisms are selected in dental biofilm by the acidic environment created by sugar fermentation, but the effect of extracellular polysaccharide (EPS) on the counts of cariogenic bacteria is not clear. Dental biofilm was formed in situ for 13 days under exposure 8 times a day to distilled-deionized water, glucose + fructose or sucrose solutions. Mutans streptococci (MS) counts were not different among the groups, but lactobacilli (LB) were significantly higher in glucose + fructose and sucrose groups, without significant difference between them, irrespective of the higher insoluble EPS concentration in the sucrose biofilm matrix. The data suggest that exposure to sugar is more relevant for the predominance of LB in dental biofilm than for MS and that insoluble EPS does not change the counts of these microorganisms in the biofilm. Copyright (c) 2006 S. Karger AG, Basel
Subject: acidogenicity
biofilm, sucrose
insoluble extracellular polysaccharides
lactobacilli
mutans streptococci
Country: Suíça
Editor: Karger
Rights: fechado
Identifier DOI: 10.1159/000095656
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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