Multiple choice

EDTA is used in root canal therapy mostly as a

  1. pulp solvent

  2. chelating agent

  3. root canal irrigant

  4. anti-microbial agent

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

EDTA has been used as an irrigant but its main purpose is as a chelating agent as it removes the smear layer of dentin and leaves virtually no debris on the surface of the dentin.