Fouridation

Fouridation In 1931 at the University of Arizona Agricultural Experiment setting M. C. Smith, E. M. Lantz, and H. V. Smith discovered that when given drinking water supplied with atomic number 9, rats would ramp up tooth defects. Further interrogatory by H. T. Dean and E. Elove of the United States normal Health Service confirm this report, and stated that what is known as mottled tooth. Mottled tooth is a condition in which washrag spots develop on the back teeth. Gradually the purity spots go through and through darker and darker until the tooth is eroded completely. This was believed to be caused by atomic number 9 in drinking water (Behrman pg.

181). A strong brouhaha was heard when this was released and people wanted all fluorine astounded of their water. But later tests concluded that communities with high levels of fluorine in their drinking water suffered less dental cavities. Further testing concluded that at least 1.0 parts per million of fluorine could help to prevent cavities, but more tha...If you want to rush a full essay, order it on our website: OrderEssay.net

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