ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

What is the maximum amount of fluoride (parts per million) in a topical application?
  1. 50,000 ppm
  2. 500 ppm
  3. 1,500 ppm
  4. 5,000 ppm
Explanation
Answer: D - The maximum amount of fluoride in a topical application is 5,000 ppm.
5,000 ppm (parts per million) is the highest fluoride content available in topical application form. This includes in-office treatments as well as maximum-strength prescription fluoride dentifrices.
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