Water Fluoridation — NDEB AFK MCQ
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Correct answer: A — 0.7 ppm
Health Canada recommends 0.7 mg/L (0.7 ppm) as the optimal fluoride concentration for community water fluoridation. This level balances maximum caries prevention benefit with minimal risk of dental fluorosis. The maximum acceptable concentration (MAC) under the Canadian Drinking Water Quality Guidelines is 1.5 mg/L. As of 2022, approximately 38.8% of Canadians have access to fluoridated water.
Reference: Health Canada – Fluoride and Oral Health, 2024; Canada.ca