Strontium Incorporation into Dental Enamel

Abstract
Rats were raised on diets either rich or poor in strontium. Powder x-ray diffraction patterns suggest that isomorphous substitution of strontium for calcium occurs in the apatite of tooth enamel, and that strontium may form Sr6H3(PO4) • 2H2O, a compound hitherto unreported in biologic systems.