Fluoride Action Network


The fluoride content of drinking water is directly correlated with the serum and saliva fluoride. Serum fluoride levels are also directly related to those of saliva, but not to urinary fluoride.

These interrelations are so close that a mathematical formula can be devised for the calculation of fluoride in body fluids. For instance, a sample of saliva may serve for the quantification of serum fluoride. Whereas these interrelations are observed in general population groups they do not always apply to individuals.