Root Canal Treatment May Help Lower Blood Sugar, New Study Finds

Original Article: https://www.theguardian.com/science/2025/nov/18/root-canal-treatment-could-significantly-lower-blood-sugar-levels-study-suggests

A Surprising Health Benefit of Root Canals

Treating a common dental infection with root canal therapy may do more than save a tooth. It could also contribute to better blood sugar control, reduce inflammation, and improve cholesterol levels. This latest research followed patients for two years after successful treatment for apical periodontitis, an infection of the tooth root that can allow bacteria to enter the bloodstream and trigger wider health problems.

What the Study Observed

Researchers tracked 65 individuals who received root canal treatment and analyzed their blood samples before treatment and at several follow-up points over the next two years. They used a special scan called nuclear magnetic resonance spectroscopy to measure a variety of molecules connected to metabolism, inflammation, and overall health. Over time, the patients showed improvements in blood glucose levels, lipid markers such as cholesterol and certain fatty acids, and inflammatory markers.

Implications for Metabolic and Heart Health

The findings suggest that chronic dental infections may contribute to metabolic stress, potentially increasing the risk of conditions such as type 2 diabetes and heart disease. The study’s lead author argued that oral health may play a larger role in overall well-being than is often appreciated, calling for better coordination between dental care providers and general medical practitioners.

Experts emphasize that larger studies are needed to confirm these findings and that people should not view root canal treatment as a standalone cure for metabolic diseases.

Why This Matters to You

If you have been putting off a root canal, this study provides another reason not to delay. Treating root infections may benefit your overall health. For anyone concerned about diabetes or heart disease, it is worth talking to both your dentist and your medical provider about how oral health could be part of a broader prevention strategy. Integrating dental care into routine health checkups may offer unexpected long-term advantages.