Desensitising Agents and Caries Prevention · CDA

Which desensitising treatment works by physically blocking open dentinal tubules?

  1. Potassium nitrate
  2. Sealants
  3. Fluoride varnish
  4. Oxalate-based desensitisers
Show answer and explanation

Correct answer: Oxalate-based desensitisers

Oxalate compounds form crystals inside the tubules, reducing fluid movement. This lowers hypersensitivity.

Difficulty: Medium Question 5 of 20

Practice all 20 Desensitising Agents and Caries Prevention questions

Keep practicing

More Desensitising Agents and Caries Prevention questions