15/07/2026
A new study from Kingâs College London and the University of Helsinki suggests that root canal treatment for dental infections may improve blood sugar control and reduce systemic inflammation. The observational study followed 65 patients with apical periodontitis, a chronic infection of the tooth pulp and root, over a twoâyear period. Blood samples collected before treatment and at intervals afterward showed significant improvements in glucose levels, amino acids linked to insulin resistance, lipids, and inflammatory markers.
Three months after treatment, temporary reductions in cholesterol and key metabolites were observed, while blood glucose improvements became apparent after two years. These changes suggest that chronic oral infections may contribute to metabolic dysfunction, and resolving these infections can partially restore normal metabolic pathways. The study highlights the potential link between oral health and systemic conditions such as diabetes and cardiovascular disease.
Although this study was observational and lacked a control group, the results indicate that dental interventions could play a role in broader health outcomes. The authors emphasize the importance of integrated care between dental and medical professionals to monitor metabolic risk and advocate for early treatment of chronic oral infections.
Research Paper đ
DOI: 10.1186/s12967-025-07110-0
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