11/07/2026
Researchers have discovered that antibodies passed from mother to baby before birth and through breastfeeding may do more than provide early protection—they may help shape the developing oral immune system in ways that reduce the risk of gum disease later in life.
The study found that antibodies transferred before birth helped the immune system learn to distinguish beneficial oral bacteria from harmful ones. Meanwhile, antibodies received through breast milk supported the healthy development of the mouth's protective lining, helping strengthen the natural barrier against infection.
Together, these early immune effects were associated with better long-term oral health. However, these findings are based on laboratory mouse models, so further human studies are needed before they can be applied to clinical practice.
📄Study: Naamneh R, et al. Maternal antibodies shape oral immunity to protect against periodontitis throughout life. Nature Communications. 2026.