Research suggests root canal treatment could lower blood sugar levels

Researchers have identified wider health benefits to root canal surgery.

The team at King’s College London found that patients who underwent root canal treatment experienced a significant fall in blood sugar levels over two years. This would indicate that purging the body of harmful bacteria might be a useful method of fighting type 2 diabetes.

Improvements were also noted in cholesterol and fatty acid levels, which are both associated with cardiovascular health.

Root canal treatment is a common dental procedure that is undertaken to treat infections and damage to tooth pulp. A health survey in 2024 found that more than a third of adults in England have had this treatment, including over 50% of the 55 to 74 age group. In London, the researchers monitored 65 patients at Guy’s and St Thomas’ NHS Foundation trust for 24 months after receiving root canal treatment. They examined blood molecules to assess the processing of fats, sugars and other substances.

Publishing their findings in the Journal of Translational Medicine, the team identified improvements in blood sugar levels and fat metabolism, while inflammation dropped. Senior endodontology lecturer Dr Sadia Niazi said the findings demonstrated the link between oral health and general health. Treating oral bacteria to combat infections prevents them from entering the bloodstream, and thus increases the body’s ability to keep a lid on blood sugar levels.

If you need services such as root canal treatment in Chester and want to understand its wider impact, call our team at Art of Dental Care now to set up an appointment.