Your mouth and your heart may seem unrelated, but they are closely connected.

Research shows that gum disease and poor oral health are linked with heart disease. Looking after your teeth and gums is an important part of protecting your overall health, including your heart.

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How oral health affects the heart

Gum disease is an infection of the tissues that support your teeth. It happens when plaque builds up along the gumline, causing inflammation.

Bacteria from infected gums can enter the bloodstream. This may contribute to inflammation in other parts of the body, including the heart and blood vessels.

This link means:

• People with gum disease may have a higher risk of heart disease.
• Inflammation in the body may affect both the gums and the heart.
• Poor oral health can be part of a wider pattern of health problems.

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If you have a heart condition

If you have been diagnosed with heart disease, keeping your mouth healthy is important.

Infections in the mouth can sometimes spread through the bloodstream and may affect the heart, especially if you have:

• Artificial heart valves.
• A history of heart valve problems.
• Certain congenital heart conditions.

Always tell your dentist about any heart condition and the medicines you take. This helps them plan your care safely.

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Signs of gum disease to look out for

Contact your dental team if you notice:

• Bleeding gums when brushing or cleaning between teeth.
• Red, swollen or tender gums.
• Persistent bad breath.
• Loose teeth.
• Receding gums.

Gum disease is often painless in the early stages, so regular check-ups are important.

If left untreated, it can develop into periodontitis. This more serious stage can damage the bone that holds teeth in place and may lead to loose teeth or tooth loss.

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How to protect your oral and heart health

You can reduce your risk of gum disease and support your heart health by:

• Brushing last thing at night and once more during the day with a fluoride toothpaste.
• Cleaning between your teeth every day using interdental brushes, floss or tape.
• Not ignoring bleeding gums – this is a sign they need better cleaning.
• Visiting your dentist or hygienist regularly for check-ups and professional cleaning.
• Eating a balanced diet and limiting sugary foods and drinks.
• Not smoking.

Good daily oral care helps reduce inflammation in the mouth and supports your overall health.

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Summary

Healthy gums are an important part of a healthy body. Looking after your mouth is one small step that can make a big difference to your heart health.

Last reviewed: March 2026