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Porphyromonas gingivalis

Background:

——————————————————————————
Anaerobic Gram-Negative Bacilli
——————————————————————————
>Bacteroides fragilis (most important clinically)
    [Other Bacteroides species  – less common clinically:  (B. acidifaciens, B. gracilis,
         B. oris, B. ovatus,  B. pyogenes , B. stercoris, B. vulgatus)]
>Bacteroides melaninogenicus (reclassified and split into Prevotella melaninogenica
     and Prevotella intermedia.)
>Fusobacterium necrophorum
>Porphyromonas gingivalis led

Porphyromonas gingivalis

  • belongs to the phylum Bacteroidetes and is a non-motile, Gram-negative, rod-shaped, anaerobic pathogenic bacterium.
  • It forms black colonies on blood agar. 
  • It is found in the oral cavity, where it is implicated in certain forms of periodontal disease, as well as the upper gastrointestinal tract, respiratory tract, and in the colon.

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Therapy:

Important considerations:  The choice of an agent should be based on local antimicrobial sensitivities, site of infection, cost, and comorbid conditions.   Generally, the most common agents/regimens are listed first.

  1. Review process – look for future updates

Porphyromonas gingivalis