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A Tale of Two Cities Finds That Community Water Fluoridation Prevents Caries

August 11, 2021
by ADA


The prevalence of caries in the primary dentition of children was significantly higher in Calgary, Canada, without fluoridated water, than in Edmonton, where the water is still fluoridated, according to a study published by the journal Community Dentistry and Oral Epidemiology.

Calgary and Edmonton are the two largest cities in the province of Alberta, with a population of about 1.2 million and 932,500, respectively. In Calgary, fluoridation began in 1991 and ceased in 2011, and fluoridation has existed in Edmonton since 1967.

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