World Health Day: Why Oral Health is Key to a Healthy Heart

On World Health Day, it’s time to shine a light on a part of the body that is often overlooked when we talk about overall health: the mouth.

While many associate oral hygiene with preventing cavities or maintaining a bright smile, research now shows a much deeper connection — one that links the health of your gums to the health of your heart.

Oral Health and Cardiovascular Disease: A Silent Link

Cardiovascular disease (CVD) is the world’s leading cause of death, claiming over 20.5 million lives each year. The World Health Organization estimates that up to 80% of premature deaths from heart disease could be prevented through early interventions and lifestyle changes.

What many don’t realise is that these changes include better oral hygiene. Oral diseases such as gum disease (periodontitis) can contribute to chronic inflammation, which is a known risk factor for heart attacks and strokes.

Bacteria Don’t Stay in the Mouth

Tommi Pätilä, a cardiac and transplant surgeon at the New Children’s Hospital (HUS) in Finland, reminds us that oral bacteria can escape the mouth and enter the bloodstream, causing serious infections.

"Every time we chew, bacteria or fragments of them can enter the body through inflamed gums. This persistent low-grade inflammation may eventually affect the heart, brain or other vital organs,” he explains.

In severe cases, oral bacteria can even infect heart valves. Pätilä was inspired to take action after operating on a patient with a life-threatening infection caused by bacteria originating in the mouth.

This led him and two other Finnish scientists to develop Lumoral, an innovative, light-based treatment that eliminates 99.99% of plaque bacteria from tooth surfaces at home — helping to prevent oral diseases before they start.

Why Brushing Isn’t Enough

Professor Timo Sorsa from the University of Helsinki and Karolinska says the traditional approach to oral hygiene isn’t keeping up.

"A toothbrush alone removes only about 60% of oral biofilm. That’s why gum disease and tooth decay remain among the most common diseases in the world," he says.

In Finland, two out of three adults over 30 have some form of periodontitis. Studies show that people with gum disease are up to 30% more likely to suffer their first heart attack and nearly twice as likely to develop coronary artery disease.

The Power of Prevention and Early Detection

Sorsa has led the development of a five-minute aMMP-8 test that detects early-stage gum disease even before symptoms appear. The test, which can be used at home or by a dental professional, enables earlier treatment and better outcomes — for both oral and general health.

"Preventing and catching periodontitis early not only protects teeth, but can also reduce the risk of serious systemic diseases like cardiovascular disease, diabetes and even Alzheimer’s," Sorsa says.

He also highlights antibacterial light-activated Lumoral as a modern, drug-free solution to support oral health, especially for people with recurring gum problems or a high risk of dental disease.

A Healthier Mouth for a Healthier Life

On World Health Day, the message is clear: oral health is more than cosmetic — it’s a foundation of full-body wellness.

Good oral hygiene, advanced diagnostics, and preventive tools like Lumoral and the aMMP-8 test offer powerful ways to reduce disease risk and support a longer, healthier life.

As Professor Sorsa puts it: “If you care about your heart and overall health, start with your gums.”