CWF Strongest Evidence — NDEB AFK MCQ
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Correct answer: C — Community water fluoridation
Community water fluoridation (CWF) has the strongest evidence base of any population-level caries prevention measure, with over 70 years of research demonstrating a 25-30% reduction in dental caries across all age groups and socioeconomic levels. It is endorsed by the WHO, CDA, Health Canada, ADA, and every major health organisation. CWF is the most cost-effective public health intervention for caries prevention (approximately $1 per person per year in large communities). It benefits all community members regardless of access to dental care, income, or oral health literacy.
Reference: Health Canada – Fluoride and Oral Health, 2024; CDA – Fluoridation Position Statement