INBDE (Integrated National Board Dental Examination) Practice Exam

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Which microbe is key in chronic periodontitis?

  1. T. denticola

  2. A.A

  3. P. gingivalis

  4. Fusobacterium nucleatum

The correct answer is: P. gingivalis

Chronic periodontitis is a common inflammatory condition that affects the supporting structures of the teeth. Among the microbes associated with periodontal diseases, Porphyromonas gingivalis (Choice C) is a key bacterium involved in chronic periodontitis. P. gingivalis is known for its ability to invade and persist in periodontal tissues, contribute to the destruction of periodontal ligaments and alveolar bone, and evade the host immune response. This pathogen is considered a major player in the progression of periodontal disease. Therefore, in the context of chronic periodontitis, P. gingivalis is a crucial microbe to consider.

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