Which dental disease is associated with adverse pregnancy outcomes?

• A. Caries
• B. Gingivitis
• C. Periodontal disease
• D. Dental fluorosis

Answer: (C)

The main idea here is how maternal periodontal health can influence pregnancy outcomes through the body's inflammatory and bacterial responses. Periodontal disease, including periodontitis, involves a persistent bacterial challenge in the gums and the accompanying inflammatory reaction. This isn’t just a local mouth issue—pieces of bacteria and inflammatory mediators can enter the bloodstream, creating a systemic inflammatory state. In pregnancy, that systemic inflammation can affect the uterus and placenta, increasing the risk of adverse outcomes such as preterm birth and low birth weight. The mechanisms often cited include elevated inflammatory mediators like prostaglandins and cytokines (for example, PGE2 and TNF-α) that can stimulate labor or impair fetal growth, as well as potential direct bacterial influence on the placental environment.

It’s important to distinguish this from gingivitis, which is common in pregnancy due to hormonal changes and represents gum inflammation without the tissue destruction of periodontitis. While gingivitis reflects local inflammation, the stronger association with adverse pregnancy outcomes comes from established periodontal disease with progression and a higher systemic inflammatory burden. Other dental conditions listed—such as caries or dental fluorosis—do not have the same demonstrated link to pregnancy outcomes in the same way, so the focus is on the inflammatory and bacterial impact of periodontal disease during gestation.