In the present study 62 uncontrolled diabetic and 60 non-diabetic patients between the age range of 35-66 years were examined and plaque, calculus, gingival and perio indices were studied. In this study correlation of salivary calcium and blood sugar with periodontal health and calculus deposition was also carried out. It shows that there was increase in RPI and OHI with duration in uncontrolled diabetic patients. We have also observed that salivary calcium level was significantly higher in uncontrolled diabetics which helps in calculus formation and hence increases severity of periodontal disease.