Ocurrencia de bacilos gramm negativo no fastidiosos y levaduras en la microbiota subgingival de pacientes chilenos con periodontitis

Abstract

Background and aim: Groups of defined bacteria in the subgingival microbiota have been associated with periodontitis. Therefore, periodontal therapy is directed toward the suppression or elimination of particular periodontal pathogens. Some patients are refractory or poorly responsive to periodontal therapy. Some authors have related them with the presence of unusual pathogens in the subgingival microbiota. Thus, the aim of this work was to study the prevalence of non fastidious Gram negative rods and yeasts in the subgingival microbiota of a group of Chilean aggressive and chronic periodontitis patients. Material and methods: Subgingival plaque samples from of 75 periodontitis patients (chronic or aggressive) were obtained with paper points and deposited in cold RTF (4°C) to be analyzed immediately. Results: 22.6% of patients harbored non fastidious Gram negative rods, and yeasts a 9.3% of them. In the first group 64.8% of isolates was Alcaligenes faecalis, 17.6% Escherichia coli and the other 17.6% was Pseudomonas aeruginosa. Conclusions: No significant difference was observed between both groups of periodontitis patients (p > 0.05).