Background: Saliva plays a profound role in the maintenance of oral health in the denture wearing patient. Indeed, the presence of a thin salivary film layer is essential for the comfort of the mucosa beneath a denture base and for denture retention. The importance of this film is evident from the multitude of problems associated with denture wear in the xerostomic patient. Material and method: A total of 120 patients were enrolled in this study. The flow rates of stimulated and un-stimulated whole saliva were collected and compared before, during and 3 months after the delivery of complete denture. Similarly the ph of whole saliva was calculated before, during and 3 months after the delivery of complete denture using a digital pH meter. SPSS software was used for statistical analysis. Results: The mean flow rate of resting saliva before, after denture insertion and after 3 months was 0.38, 0.91 and 0.69 ml/min respectively. There was a significant difference in the flow rate of resting saliva at all three occasions (P-value 0.02). The mean flow rate of stimulated saliva before, after denture insertion and after 3 months was 0.72, 0.99 and 0.84 ml/min respectively. There was a significant difference in the flow rate of stimulated saliva at all three occasions (P-value 0.03). The pH of resting saliva before, after denture insertion and after 3 months was 7.32, 7.51 and 7.43 respectively. There was a non-significant difference in the pH of resting saliva at all three occasions (P-value 0.86). The pH of stimulated saliva before and after denture insertion was 7.40 and 7.62 respectively. The pH after 3 months was 7.53. There was a non-significant difference in the pH of stimulated saliva at all three occasions (P-value 0.08). Conclusion: The flow rate and the pH of the resting and the stimulated saliva were significantly higher immediately after and 3 months after denture insertion as compared to the values before denture insertion. Key words: Stimulated saliva, Complete denture, Xerostomia.