Adults with T2DM have high odds of periodontitis: Study

Results: Finally, 3,491 eligible adults with the information of periodontitis measurement, T2DM diagnosis and PLP detection were included. Among them, 1,999 (57.26%) had periodontitis. After adjusted confounders, we found adults with T2DM had high odds of periodontitis (OR = 1.45, 95%CI: 1.04–2.02); while no significant association between PLP and periodontitis was observed. Adults with low PLP level (< 67.20 nmol/L) and combined with T2DM had high odds of periodontitis (OR = 1.82, 95%CI: 1.29–2.55), no significant association was found between T2DM and periodontitis in adults with high PLP level (≥ 67.20 nmol/L). These results suggested that serum PLP levels may have the modulatory effect on the association of T2DM and periodontitis.

This modulatory effect remains robust in subgroup analysis, especially in adults aged ≥ 60 years (OR = 4.54, 95%CI: 2.15–9.62), with obese (OR = 3.06, 95%CI: 1.31–7.18), without the history of CVD (OR = 2.25, 95%CI: 1.06–4.79) and without dental decay (OR = 2.93, 95%CI: 1.51–5.68) (all P < 0.05). The study suggested that adults with T2DM had the high odds of periodontitis, and serum PLP may plays a modulatory effect in this association. T2DM patients maintaining a higher intake of vitamin B6 may have potential benefits in reducing the periodontitis risk.

Reference:

Zhu, J., Xu, W., Wu, S. et al. Vitamin B6 status, type 2 diabetes mellitus, and periodontitis: evidence from the NHANES database 2009–2010. BMC Oral Health 25, 299 (2025). https://doi.org/10.1186/s12903-025-05597-z