Public Health · single question
For a 4-year-old at HIGH caries risk whose drinking water contains <0.3 ppm fluoride, the ADA-recommended dietary fluoride SUPPLEMENT dose is:
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Correct answer: B. 0.50 mg/day
- A. 0.25 mg/day applies to the 6 months–3 year group (water <0.3 ppm), or the 3–6 group when water is 0.3–0.6 ppm.
- B. Correct. ADA schedule: ages 3–6 with water <0.3 ppm receive 0.50 mg/day.
- C. 1.0 mg/day applies to ages 6–16 with water <0.3 ppm.
- D. A supplement IS indicated here for a high-risk child.
Note: The recall wrote '0.50 ppm,' but the value is the supplemental DOSE in mg/day, not a water concentration.