Insulin resistance indices and periodontitis in patients with diabetes: A nationwide population‐based study

To our knowledge, this is the first comprehensive evaluation of the association between multiple blood test-derived insulin resistance indices and periodontitis in patients with diabetes. The analysis identified metabolic score for insulin resistance (METS_IR) and triglyceride glucose index*waist-to-height ratio (TyG*WHtR) as the indices with the closest association with periodontitis and the highest diagnostic accuracy, respectively. These indices were closely linked to the risk of periodontitis in patients with diabetes, and TyG*WHtR was the most effective predictor. These simple blood test indices may allow early-stage periodontal health risk assessment and management in patients with diabetes.