comparison of glycosylated hemoglobin (hba1c) levels in patients with chronic periodontitis and healthy controls

background: the aim of this study was to determine if glycosylated hemoglobin is elevated in patients with chronic periodontitis who have not been diagnosed with diabetes and also to compare the hba1c levels that were obtained with lab and chairside test kit. materials and methods: a case control study was designed. glycosylated hemoglobin (hba1c) was assessed using a chairside kit and laboratory method in 70 subjects without diabetes but with chronic periodontitis [having at least 10 teeth (at least one site around each tooth) with probing depth (pd) ≥ 5 mm, bleeding on probing (bop) ≥15% and clinical attachment level (cal) ≥ 1 mm] and 70 healthy controls (pd ≤ 4 mm and bop ≤ 15%). groups were compared using the t ‑test and multiple linear regression model analysis. karl pearson’s correlation coefficient was used to compare the relationship between different variables. results: in this case control study hba1c (lab and kit) were slightly higher and statistically significant in chronic periodontitis cases than in healthy controls. conclusion: chronic periodontitis is associated with a slight elevation in glycosylated hemoglobin (lab and chair side kit) and that the clinical significance of this difference remains to be determined. this preliminary finding is consistent with earlier reports that chronic periodontitis is associated with elevated blood glucose in adults without diabetes and may increase one’s risk for type‑2 diabetes. key words: chronic periodontitis, diabetes, glycosylated hemoglobin, tumor necrosis factor‑α