Fluoride is a compound of the element fluorine, which can found throughout nature in water, soil, air and food. By adding fluoride into our drinking water, it can be absorbed easily into tooth enamel, especially in children’s growing teeth, which helps to reduce tooth decay.
Just drinking public water will provide a certain measure of fluoride protection. But for years, health professionals have endorsed the practice of supplementing our intake with certain dietary products, and topical fluorides in many toothpastes and some kinds of rinses.
It is NOT safe to swallow toothpastes, rinses, or other products containing topical fluoride. In rare cases, some people may be overexposed to high concentrations of fluoride, resulting in a relatively harmless condition called fluorosis, which leaves dark enamel stains on teeth.