Periodontitis and Diabetes Complications: A Danish Population-Based Study

Area of Science:

• Endocrinology and Metabolism
• Periodontology
• Public Health

Background:

• Conflicting evidence exists on the link between diabetes-related microvascular complications and periodontitis.
• Previous studies were limited by small sample sizes and confounding factors.
• The combined impact of microvascular complications and dyslipidemia on periodontitis remains unexplored.

Purpose of the Study:

• To investigate the association between diabetic microvascular complications (neuropathy, retinopathy) and periodontitis.
• To examine the combined effects of these complications on periodontitis risk.
• To assess the modifying role of dyslipidemia in these associations.

Main Methods:

• A population-based study of 15,922 individuals with type 2 diabetes from the Health in Central Denmark study.
• Multinomial logistic regression and Inverse Probability of Treatment Weighting (IPTW) were used for analysis.
• Sensitivity analyses were conducted to ensure robustness of findings.

Main Results:

• Diabetic neuropathy (OR 1.36) and retinopathy (OR 1.21) were significantly associated with moderate/severe periodontitis.
• The coexistence of microvascular complications increased periodontitis odds by 1.5-fold (OR 1.51).
• Dyslipidemia showed a positive additive effect modification on the association between microvascular complications and periodontitis.

Conclusions:

• Diabetic neuropathy and retinopathy, individually and combined, are associated with moderate/severe periodontitis.
• Dyslipidemia exacerbates the risk of periodontitis in individuals with diabetic microvascular complications.
• Findings can help identify at-risk populations for targeted interventions to reduce disease burden.