Pediatric Dentistry · single question

A 4-year-old child lives in a non-fluoridated area. What is the recommended fluoride supplement dosage?

  1. 0.10 mg/day
  2. 0.50 mg/day
  3. 1 mg/day
  4. 0.25 mg/day
Show answer and explanation

Correct answer: B. 0.50 mg/day

  • A. There is no ADA-recommended fluoride supplement dose as low as 0.10 mg/day.
  • B. Per the CDC/ADA fluoride supplementation schedule: ages 3-6 years in areas with <0.3 ppm fluoride = 0.50 mg/day. Ages 6 months to 3 years = 0.25 mg/day. Ages 6+ years = 1.0 mg/day. The 4-year-old at 0.50 mg is correct.
  • C. 1 mg/day is the dose for children aged 6 years and older in non-fluoridated areas.
  • D. 0.25 mg/day is the dose for children aged 6 months to 3 years — not a 4-year-old.

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