Fluoride the micro-nutrient

http://orthomolecular.org/nutrients/micronutrients.shtml

Confers resistance to tooth decay. Fluorine is present in almost all tissue, especially the teeth and bones. It is absorbed in the intestines, transported in the blood stream, stored in teeth and bones. Fluorine increases the bio availability of calcium and helps to buffer acids present in the mouth. Helps prevent dental caries in children; Interferes with the growth and development of bacteria that causes dental plaque. Tweet