Scientists link oral health to heart disease and diabetes
Updated
Updated · The Guardian · May 11
Scientists link oral health to heart disease and diabetes
8 articles · Updated · The Guardian · May 11
Researchers say gum disease affects about half of UK adults, while some studies suggest up to 90% of people with cardiovascular disease also have it.
Evidence indicates oral bacteria can enter the bloodstream, contribute to clotting, stroke and Atherosclerosis, while a 2025 study found Root canal treatment significantly lowered blood sugar, cholesterol and fatty acids.
Scientists are also investigating links with cognitive decline and arthritis, though causation remains unclear; the findings add to pressure over poor NHS dental access and reinforce advice to brush and floss regularly.
If your mouth is a gateway for heart disease and dementia, why are medicine and dentistry still separate worlds?
Could your next dental check-up include an AI-powered prediction of your future risk for a stroke?
Integrating Oral and Systemic Health: How Dental Care Lowers Cardiovascular and Diabetes Risks
Overview
Recent scientific breakthroughs have revealed that dental treatments do much more than protect our teeth—they also help reduce risks for serious conditions like heart disease and diabetes. When infections such as chronic apical periodontitis occur, bacteria can enter the bloodstream, leading to systemic inflammation. This inflammation is now known to increase the chances of developing or worsening chronic diseases. By effectively treating dental infections, we can lower this inflammation and its harmful effects throughout the body. These findings highlight the importance of dental care as a key part of overall health and disease prevention.