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Type: Artigo de periódico
Title: Dental caries experience in relation to salivary findings and molecular identification of S. mutans and S. sobrinus in subjects with Down syndrome
Author: de Castilho, ARF
Pardi, V
Pereira, CV
Abstract: This study investigated the association between clinical and salivary or molecular parameters in Down syndrome subjects. Sixty individuals (1- to 48-year old) were clinically examined using DMFT/DMFS. Stimulated saliva was collected; salivary flow was calculated (mL/min), buffering capacity was measured using a standard pH tape. In addition, 25 mu L of saliva was diluted using 10-fold-dilution method and then placed on Mitis-Salivarius-Bacitracin agar to count colony forming units (CFU/mL) of mutans streptococci. Polymerase chain reaction analysis identified species. Caries indexes were 0.65-13.5 (DMFT) and 0.65-26.0 (DMFS) according to groups. Ninety-four percent of subjects had low flow rate (0.7-1.0 mL/min) and 44% had low buffering capacity (pH < 4). Besides, 60% had more than 1 x 10(6) CFU/mL, 60% had S. mutans, and 41.4% had S. sobrinus. Caries indexes did not significantly correlate with flow rate, buffering capacity, CFU/mL by Pearson's correlation (p > 0.05), and showed no significant association with prevalence of species by Chi-square (p > 0.05). There is no association between clinical picture and salivary or molecular parameters in Down syndrome subjects.
Subject: Dental caries
Streptococcus mutans
Streptococcus sobrinus
Down syndrome
Country: EUA
Editor: Springer
Citation: Odontology. Springer, v. 99, n. 2, n. 162, n. 167, 2011.
Rights: fechado
Identifier DOI: 10.1007/s10266-011-0010-9
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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