The Effect of Sodium Fluoride Upon the Surface Structure of Powdered Dental Enamel

Abstract
Electron and X-ray diffraction expts. show that the treatment of powdered dental enamel surfaces results in a direct transformation from an apatite to a CaF2 structure. The rate of the transformation is enhanced very markedly as the pH of the soln. is lowered. The concn. of the F soln. and the time of treatment are also factors involved in the rate of the transformation.