Restorative & Materials · single question

Fluoride is most effective at preventing caries on which tooth surfaces?

  1. Smooth surfaces
  2. Deep pits and fissures
  3. Root surfaces only
  4. Interproximal contacts only
Show answer and explanation

Correct answer: A. Smooth surfaces

  • A. Correct. Fluoride works best on smooth surfaces; pit-and-fissure caries are better prevented by sealants.
  • B. Deep pits/fissures benefit more from sealants than from fluoride.
  • C. Fluoride helps root surfaces but is not limited to them.
  • D. Its benefit is not restricted to interproximal areas.

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