Background: Casein phosphopeptide – amorphous calcium phosphate (CPP-ACP) nanocomplexes incorporated into sugar-free chewing gums have shown to remineralize enamel subsurface lesions in situ. So this study was conducted to evaluate and estimate the salivary concentration of calcium and phosphorous, salivary pH and buffering capacity before and after chewing sugar free chewing gums containing CPP-ACP (RecaldentTM). Material and methods: Unstimulated saliva from each 18 selected subjects (aged between 8–14 years) was collected. Then each subject was given two pellets of chewing gum containing CPP-ACP and asked to chew for a period of 20 mins. Then the stimulated saliva was collected at intervals of 20, 40, 60, 90 min from each individual. They were assessed for calcium and phosphorous concentration using affiliated reagent kits and photometer while salivary pH and buffering capacity were assessed using Saliva Check kit. Results: There was significant increase in salivary calcium level over a period of 20,40,60 mins than the resting salivary calcium level. The salivary phosphate level over a period of 20 mins was lower than at resting salivary phosphate level. The salivary pH and buffering capacity remained higher for the entire 90 mins period. Conclusions: CPP–ACP containing chewing gum increases the level of calcium, salivary pH and buffer capacity, thereby may result in the remineralisation of tooth.