Quantitative assessment of stimulated saliva flow rate in children and adolescents

Joana Karla Dias Moura, Lívia Almeida Barros, Ana Emília Figueiredo de Oliveira, Cecília Cláudia Costa Ribeiro, Fernanda Ferreira Lopes


Purpose: This study evaluated stimulated whole saliva flow rates in children and adolescents, and tested the association of salivary flow rate with age and dental status.
Methods: The sample consisted of 100 children and adolescents, who were undergoing dental treatment at the dental clinics of UFMA from August 2006 to July 2007. Subjects were divided into two groups: G1 (6 -12 years) and G2 (13-19 years). Data were collected on age, sex, and caries experience (DMFT). The samples of stimulated whole saliva were obtained by the method of chewing a piece of rubber band for 5min and spitting every 1min. Data were analyzed by ANOVA and Pearson correlation tests at the 5% significance level.
Results: There was no significant difference in salivary flow rates as a function of sex, age or age groups. However, there was a significant negative correlation between dental status and salivary flow rates in children and adolescents.
Conclusion: The results suggest that there is an association of better dental conditions and higher salivary flow rates in this sample of children and adolescents.
Key words: Saliva; flow rate; age


Saliva; flow rate; age

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e-ISSN: 1980-6523

ISSN-L: 0102-9460


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