Gum Disease Linked to Dangerous Arterial Buildup, AHA Says

Keeping gums healthy may do more than protect a smile—it could also help protect the heart.

The American Heart Association has released a new scientific statement pointing to a possible connection between gum disease and heart disease. The report highlights growing evidence that periodontal disease, a serious form of gum infection, may play a role in atherosclerotic cardiovascular disease, a condition caused by the buildup of plaque inside arteries.

The findings were published in the AHA’s journal Circulation, which reviewed newer data on how chronic inflammation in the mouth might affect the rest of the body. Periodontal disease causes long-lasting inflammation and infection in the gums. Researchers believe that bacteria from the mouth can enter the bloodstream, triggering inflammation that may contribute to plaque formation in blood vessels.

Atherosclerosis is a major cause of heart attacks and strokes. When arteries narrow and harden due to plaque buildup, blood flow to the heart and brain can be reduced or blocked. While gum disease does not directly cause heart disease, the AHA says it may increase risk, especially when combined with other factors like smoking, diabetes, or poor diet.

The issue is widespread. According to the AHA, more than 40 percent of U.S. adults over age 30 have some form of periodontal disease. Rates are higher among men, older adults, and people who do not get regular physical activity. The condition is also more common in communities with limited access to dental care and nutritious foods.

Symptoms of gum disease include swollen or bleeding gums, bad breath, loose teeth, and gum recession. In many cases, the disease develops slowly and without pain, making regular dental checkups especially important.

The AHA emphasizes that good oral hygiene should be viewed as part of overall health. Brushing twice a day, flossing, avoiding tobacco, and seeing a dentist regularly can help reduce gum inflammation. At the same time, heart-healthy habits, such as eating a balanced diet, staying active, and managing blood pressure, may also support better oral health.

Researchers say more studies are needed to fully understand how treating gum disease might affect heart disease risk. Still, the message is clear: the mouth and the heart are more connected than once believed, and caring for one may help protect the other.