Salivary pH and Dental Caries in Diabetes Mellitus

Deepak Goyal, Harshaminder Kaur, Manveen Kaur Jawanda, Sonika Verma, Swati Parhar


Background: Diabetes Mellitus is a major health care problem in which reduced secretion of saliva may occur due to pronounced polyuria in non-regulated and inadequately regulated cases. Aim: To determine salivary pH in diabetic and non-diabetic subjects and to compare the prevalence of dental caries among them. Materials and Methods: The study involved 150 subjects, distributed in three groups; (1) 50 non-diabetic subjects (25 females and 25 males) (2) 50 controlled diabetic subjects (25 females and 25 males) and (3) 50 uncontrolled diabetic subjects (25 females and 25 males). Fasting blood glucose level and salivary pH for each subject were measured with the help of biochemical analyser and digital pH meter, respectively. Caries index was recorded using DMFT index. Results: The results showed decreased salivary pH and increased incidence of dental caries in Uncontrolled Diabetics as compared to Non-diabetics and Controlled diabetics and also decreased salivary pH and decreased incidence of caries in Controlled diabetics as compared to Non-diabetics. Conclusion: Diabetes mellitus may have a direct effect on salivary pH reducing it from normal levels irrespective of diet.


Dental Caries;Diabetes;DMFT;Salivary pH

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