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Memorias del Instituto de Investigaciones en Ciencias de la Salud

On-line version ISSN 1812-9528


INVERNIZZI-MENDOZA, Carlos Rafael  and  CORBETA, Humberto. Frequency of Pseudomonas aeruginosa in periodontal pockets of patients with Chronic Periodontitis. Mem. Inst. Investig. Cienc. Salud [online]. 2020, vol.18, n.3, pp.73-78. ISSN 1812-9528.

Chronic periodontitis is a pathology characterized by the destruction of tooth supporting tissues. There is scientific evidence of the presence in periodontal pockets of Pseudomonas aeruginosa, a bacterium that alters the subgingival microbiota and that has been associated with failure to treat periodontitis and could constitute a risk to patient general health. The objective of this research was to determine the frequency of P. aeruginosa in periodontal pockets of patients with chronic periodontitis who attend the Chair of Periodontology at the Autonomous University of Asunción. Descriptive, cross-sectional observational study, in which patients with chronic periodontitis who met the inclusion criteria were selected. The pieces selected for sampling were isolated with sterile cotton rolls, and once the supragingival bacterial plaque had been removed, the subgingival plaque was removed from the periodontal pockets by means of Gracey curettes and placed in test tubes containing Stuart medium, then the samples were taken to the microbiology lab for analysis. Of the total of 14 samples, only one was positive for P. aeruginosa, representing 7.14%. The isolated microorganism was resistant to the antibiotics used as adjuvants in the treatment of chronic periodontitis, as in other studies found in the international literature. The presence of these bacteria makes it difficult to control periodontal disease and could pose a risk for developing opportunistic infections, especially in immunosuppressed patients.

Keywords : Periodontitis; periodontal microbiology; subgingival microbiota; Pseudomonas aeruginosa.

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