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A meta-analysis of randomized controlled trials shows no evidence that periodontal treatment during pregnancy prevents adverse pregnancy outcomes

Lorena Baccaglini DDS, DDS, MS, PhD .


Systematic Review Conclusion

Treatment of periodontal disease with scaling and root planing (SRP) during pregnancy is unlikely to reduce the risk of preterm birth or low birth weight.

Critical Summary Assessment

A meta-analysis of 11 randomized controlled trials, including recently published high-quality studies, showed no evidence that SRP during pregnancy prevents preterm birth or other adverse pregnancy outcomes.

Evidence Quality Rating

Good Evidence

This summary is published in the Journal of the American Dental Association and can be accessed at:

Critical Summary Publication Date:


These summaries are not intended to, and do not, express, imply, or summarize standards of care, but rather provide a concise reference for dentists to aid in understanding and applying evidence from the referenced systematic review in making clinically sound decisions as guided by their clinical judgment and by patient needs. American Dental Association © 2019