Scientific and effective means of combating tooth decay is by correcting faulty diets and wrong eating habits. Fluorine creates complications by combining with calcium and forms calcium fluoride. Fluorine deionises calcium obstructing physiological functions the body. Calcium fluoride has a tendency to precipitate in the teeth, bones, organs and walls of the blood vessels. Fluorine inhibits actions of many enzymes and upsets metabolism. Fluoride causes enlargement of thyroid gland (goitre). Artificial fluoridation of public water supplies is not effective in the prevention of tooth decay. To swallow it in fluoridated water, tablets, milk candy do not protect the enamel.