Periodontal Disease and Adverse Pregnancy Outcomes

Periodontal disease is a chronic inflammatory condition that affects the tissues supporting the teeth. While it is often thought of as a localized oral health issue, research has increasingly shown that periodontal disease can have effects beyond the mouth. One area of growing interest is its possible relationship with adverse pregnancy outcomes, particularly preterm birth and low birth weight.

One explanation for this association involves the body’s inflammatory response. Periodontal disease allows bacteria and their toxins to enter the bloodstream, which can trigger systemic inflammation. Offenbacher et al. (1996) were among the first to report that pregnant women with periodontitis were more likely to deliver preterm or low-birth-weight infants compared to women with healthy periodontal tissues. Inflammatory substances such as prostaglandins and cytokines, which are produced in response to periodontal infection, may reach the uterus or placenta and contribute to early labor or placental inflammation.

Pregnancy itself can also make periodontal conditions worse. Hormonal changes, particularly increases in estrogen and progesterone, can heighten the body’s response to plaque and increase blood flow to the gingival tissues. These changes can lead to exaggerated gingival inflammation even when plaque levels are relatively low (Gürsoy et al., 2014). Without proper oral hygiene and professional care, this inflammation may progress to more severe periodontal breakdown during pregnancy.

Although studies examining whether periodontal treatment can prevent adverse pregnancy outcomes have shown mixed results, the link between periodontal disease and pregnancy complications remains important. A systematic review by Xiong et al. (2006) identified periodontal disease as an independent risk factor for preterm birth, suggesting that periodontal health should not be overlooked during prenatal care. Early identification and management of periodontal disease may help reduce overall inflammatory stress on the body.

Dental professionals play an important role in educating pregnant patients and addressing common concerns about dental treatment. Procedures such as scaling and root planing are considered safe during pregnancy and can help control periodontal inflammation. Promoting periodontal health during pregnancy not only supports oral well-being but may also contribute to better outcomes for both the mother and the developing fetus.

References

Offenbacher, S., Katz, V ., Fertik, G., et al. (1996). Periodontal infection as a possible risk factor for preterm low birth weight. Journal of Periodontology, 67(10), 1103–1113.

Gürsoy, M., Pajukanta, R., Sorsa, T., & Könönen, E. (2014). Clinical changes in periodontium

during pregnancy and post-partum. Journal of Clinical Periodontology, 35(7), 576–583.

Xiong, X., Buekens, P., Fraser, W. D., Beck, J., & Offenbacher, S. (2006). Periodontal disease

and adverse pregnancy outcomes: A systematic review. BJOG: An International Journal of

Obstetrics & Gynaecology, 113(2), 135–143.