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Heart Health
Gum disease and heart health: Probing the link
- By Julie Corliss, Executive Editor, Harvard Heart Letter
Bacteria and inflammation may underlie the long-observed connection between oral health and cardiovascular disease.
About two-thirds of people over 65 have gum disease — more formally known as periodontal disease. It starts when plaque, a sticky film of bacteria and food, builds up around the teeth. In its earliest stage, gingivitis, irritated gums can bleed easily. Left untreated, periodontal disease can worsen and, in its most severe form, cause the teeth to loosen and fall out.
Compared with people who have healthy gums, people with periodontal disease are about twice as likely to have a heart attack. Shared risk factors — including smoking, an unhealthy diet, or lack of access to health and dental care — may explain some of this association. However, some bacterial and viral infections also appear to increase the risk of heart attack and stroke. And growing evidence suggests that bacteria and inflammation may underlie the link between the mouth and the heart.
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About the Author
Julie Corliss, Executive Editor, Harvard Heart Letter
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