Aim: To evaluate the salivary pH and incidence of dental caries and periodontal status in Diabetes Mellitus and non-diabetic subjects. Materials and methods: A cross-sectional study was conducted which included 40 subjects. 20 Type 2 Diabetic Mellitus subjects and 20 non diabetic subjects. The pH of saliva was determined using a digital pH meter. For dental and periodontal Status, clinical examination was performed and Modified WHO Oral Health Assessment Form for Adults, 2013 was measured. The data collected was statistically analyzed and interpreted. Results: There was a decrease in the mean salivary pH of (6.59±0.10) in diabetic group, compared to that of non diabetic group (7.49±0.24). The mean number of carious teeth in diabetics (7.2±3.61) was significantly higher than in non diabetic subjects (2.55±1.05). Likewise, periodontal health was worse in diabetic subjects, with a higher prevalence of gingival bleeding and pockets of 4-5 mm depth, emphasizing the association between diabetes and increased oral health risks. Conclusion: This study concluded that there was a significant relationship between diabetes mellitus and increased incidence of dental caries and periodontitis. The salivary pH was significantly lower, hence the evaluation of salivary parameters can be a cost effective and a non invasive alternative for screening, diagnosis and monitoring of diabetes.