Longevity & AgingPeriodontitis and Diabetes Drive Each Other — Here's the Mechanism
Diabetes and periodontitis share a proven bidirectional relationship: poor glycemic control drives gum disease through immune dysregulation, microbial shifts, and impaired healing, while periodontitis worsens insulin resistance and glycemic control. A meta-analysis found periodontal therapy reduces HbA1c by ~0.43% in diabetic patients — comparable to some diabetes medications. Emerging evidence also links oral dysbiosis to incident type 2 diabetes development. The review details multiple interacting mechanisms including neutrophil dysfunction, barrier breakdown, altered T-cell profiles, and impaired bone regeneration, while highlighting substantial treatment heterogeneity as a key unresolved challenge.
