Which bacteria is most commonly linked to pregnancy-associated gingivitis?

Get ready for the American Board of General Dentistry Exam. Use flashcards, multiple choice questions, hints, and explanations for thorough preparation. Excel in your exam!

Pregnancy-associated gingivitis is often linked to hormonal changes that occur during pregnancy, which can influence the oral microbiome. Among the bacteria commonly associated with this condition, P. intermedia is particularly noteworthy.

P. intermedia, or Prevotella intermedia, thrives in environments with increased estrogen levels, which are prevalent during pregnancy. The hormonal alterations can enhance the proliferation of this bacterium, leading to an inflammatory response in the gingiva. This response manifests as swelling, redness, and an increased tendency to bleed, characteristic of gingivitis.

While other bacteria such as B. forsythus, P. gingivalis, and S. oralis can be involved in dental diseases, they are not as specifically linked to the hormonal changes that occur during pregnancy as P. intermedia. This specificity underscores the importance of understanding the unique microbial dynamics present during pregnancy, providing insight into the management of gingival health in expectant mothers.

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