Water fluoridation is the single most effective public health measure at reducing levels of caries. What is the correct measure?

• A. Fluoride Toothpaste
• B. Water Fluoridation
• C. Sealants
• D. Regular Dental Visits

Answer: (B)

Water fluoridation delivers a steady, low level of fluoride to the entire community, providing both systemic and topical protection against caries. This broad, population-wide exposure reaches most residents regardless of individual behaviors, making it the most effective public health measure for reducing tooth decay. Fluoride in water strengthens enamel, promotes remineralization, and helps prevent early lesions across all ages, while being cost-effective and equitable for communities. Fluoride toothpaste is important but relies on personal use and access; sealants protect specific chewing surfaces and require targeted implementation; regular dental visits are essential but depend on access and utilization.