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BY the time that Brantford, Ontario, began to fluoridate its water supply in 1945 a great deal of information had been obtained from various parts of the word concerning the effect of naturally fluoridated water on dental caries. This information showed that the incidence of tooth decay is greatly reduced in populations consuming from birth naturally fluoridated water at a level of about one part per million. No ill effects at this level were observed. We therefore wished to det
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ALBERTA lags behind most of the other provinces in Canada in instituting fluoridation as a public health measure for preventing tooth decay although the University of Alberta was the first institution in Canada to carry out significant research on this subject. The discovery that fluorine in water could prevent dental caries was first made in 1931 by research workers in the United States and as early as 1935 the travelling public health clinic in Alberta reported opaque white
