Relation of salivary inorganic phosphorus and alkaline phosphatase to the dental caries status in children.

The phosphorus concentration and alkaline phosphatase activity in saliva may be related to the susceptibility to dental caries. Thirty children in the age group of 4-6 years were divided into 3 groups. Group 1, children had rampant caries with dfs>10, group 2- dfs>5<10, group 3 caries free with dfs<1. The unstimulated mixed salivary sample was collected from each child and assayed by biochemical methods to determine the phosphorus and alkaline phosphatase concentration in saliva sample. The results showed that higher alkaline phosphatase activity and phosphorus concentration were associated with rampant caries.