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Infection Control · single question

What is the current optimal fluoride concentration recommended for community water fluoridation in the United States?

  1. 0.7 ppm
  2. 0.7 mL
  3. 1.7 ppm
  4. 1.2 mL
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Correct answer: A. 0.7 ppm

Since 2015, the U.S. Public Health Service (CDC/ADA) has recommended an optimal community water fluoridation level of 0.7 ppm (0.7 mg/L) to balance cavity prevention with minimizing fluorosis risk.

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