09:10: Streptococcus Salivarius and Recurrent Tonsillitis

Abstract

OBJECTIVES:1. Investigate the prevalence of Streptococcus salivarius in the oral commensal flora of patients that were divided in two groups: with and without history of recurrent tonsillitis. 2. Compare the prevalence of Streptococcus salivarius in these two grou METHODS: Twenty-five patients of both sexes were enrolled in this study, with ages between 2 and 10 years. The patients were divided into 2 groups: children with recurrent tonsillites (Group I) and without recurrent tonsillar infections (Group II). The criteria of recurrent tonsillitis was defined by the current guideline in Brazil. We collected oral swabs in patients of both groups that were later submitted to culture and identification of S. salivarius. The results had statistical analysis. RESULTS: In Group I, with 15 patients, S. salivarius were identified in 0% of cases and non salivarius stains in 100% of the patients. In Group II, with 10 patients, we identified S. salivarius in 62,5% of the cases and non salivarius stains 37,5% of the patients. CONCLUSIONS: Children with recurrent tonsillitis present with minor settling of S. salivarius in the oropharynx compared with children without recurrent tonsillar infections. These data suggest a protective role for S. salivarius against pathogenic bacteria of the oropharynx.