The Link Between Oral Health and Heart Health

Connecting the Dots Between Your Mouth and Heart

Gum disease does more than affect your smile—it can increase your risk of heart disease. This guide explores the science linking oral health to cardiovascular events like heart attacks and strokes, and what you can do to protect both.

The Scientific Connection

• Bacteria from gum disease can enter the bloodstream and cause inflammation
• This inflammation contributes to plaque buildup in arteries (atherosclerosis)
• Large studies show people with gum disease are 2–3 times more likely to have heart attacks

How Gum Disease Affects the Heart

Inflamed gums bleed, creating a pathway for bacteria to enter the blood. These bacteria and the immune system’s inflammatory response damage blood vessels, increase clot risk, and accelerate artery hardening—all of which raise heart disease risk.

Biological Pathways and Evidence

• Porphyromonas gingivalis: Found in gum infections and artery plaque
• Cytokines: Inflammatory chemicals triggered by bacteria worsen vascular damage
• Endothelial dysfunction: Impairs blood flow and supports plaque formation

Animal studies confirm bacteria from gum disease can worsen artery inflammation. Researchers are also exploring omega-3 compounds like resolvins to reduce gum and heart inflammation.

Prevention Tips for Oral and Heart Health

• Brush twice daily and floss daily
• Get dental cleanings every 6 months
• Quit smoking and reduce sugar intake
• Eat a diet rich in vegetables, omega-3s, and whole foods
• Manage blood pressure, blood sugar, and stress

Wider Benefits and Health Policy Implications

Better oral health lowers systemic inflammation, helping regulate blood pressure and improve diabetic outcomes—both key risk factors for heart disease. Some experts call for Medicare dental coverage to reduce heart-related health costs by improving access to preventive dental care.

Conclusion: Your Mouth Is a Mirror to Your Heart

Taking care of your teeth and gums isn’t just about your smile—it’s a vital part of protecting your heart. Brushing, flossing, dental checkups, and heart-healthy habits form a powerful strategy for long-term wellness. As research grows, the integration of dental and medical care will become increasingly important in preventing heart disease.