Type 2 Diabetes Mellitus (T2DM) is associated with many oral and dental problems. The objective of this study was to evaluate the Decayed, Missing, Filled index (DMFT index), unstimulated salivary flow rate and their relationships with glucose regulation in T2DM patients. The study included 60 patients with type 2 diabetes mellitus and 65 age- and gender-matched non-diabetic controls. Patients DMFT and unstimulated salivary flow rate were evaluated. T2DM patients were divided into two groups as good glycemic (HbA1C<7gr/dL) (30 patients) and poor glycemic control (HbA1C>7gr/dL) (30 patients). All statistical analysis was performed using SPSS version 21.0. Salivary flow rate was found as 0.14 ± 0.06 mL/min in T2DM group and 0.25 ± 0.09 mL/min in the control group and the difference was statistically significant (p=0.03). Salivary flow rate was found as 0.16 ± 0.07 mL/min in T2DM patients with good glycemic control and 0.12 ± 0.08 mL/min in T2DM patients with poor glycemic control, and the difference was statistically significant (p=0.03). DMFT index was 13.3 ± 3.7 in T2DM patients and 9.8 ± 1.7 in the control group, and the difference was statistically significant (p=0.02). DMTF index was 13.1 ± 3.3 in T2DM group with good glycemic control and 13.8 ± 4. In T2DM patients with poor glycemic control and the difference was statistically significant (p=0.04). The incidence of hyposalivation was higher in T2DM diabetic patients than control group. Salivary flow rate is low in T2DM patients, DMTF index is higher compared to non-diabetic patients, and hyposalivation is more frequently observed in these patients. Good glycemic control can prevent tooth decays and loss of teeth.
 

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