Effect of periodontal therapy on patients with type-2 diabetes and moderate to severe chronic periodontitis

Objective To evaluate the effect of the periodontal therapy on type-2 diabetes and moderate to severe chronic periodontitis patients and the effect of metabolic control of patients after controlling periodontal disease.Methods A total of 60 male and female patients with type-2 diabetes and moderate to severe chronic periodontitis were treated with periodontal therapy.Control group,consisting of 48 moderate to severe chronic periodontitis patients with non-system disease,received the same periodontal treatment.Periodontal parameters including pocket probing depth (PPD),bleeding on probing (BOP) and clinical attachment loss (CAL) were measured before and after the treatment.Results 3 to 6 months after therapy,the two groups had a statistically significant reduction on BOP (P0.05).The improvement on PPD,CAL and glycated hemoglobin (HbA1c) level in the two groups was minimal.All clinical variables and HbA1c level were detected with no statistical significance in these two groups.For BOP and CAL,a significant difference was observed in patients with deferent type-2 diabetes medical history(P0.05).Type-2 diabetes with moderate to severe chronic periodontitis and deficient metabolic control were associated with higher BOP and deeper PPD.Conclusion The baseline periodontal therapy is effective in maintaining periodontal health of chronic periodontitis patients with or without type-2 diabetes.No progressive treatment should be used to chronic periodontitis patients with type-2 diabetes.This method has a lower efficacy for type-2 diabetes and moderate to severe chronic periodontitis patients who have a poor controlled HbA1c level and longer medical history of type-2 diabetes.