Endodontics · single question
Why is sodium hypochlorite used in endodontic irrigation?
Show answer and explanation
Correct answer: A. Bactericidal
- A. Correct. NaOCl is the primary endodontic irrigant because it is bactericidal AND dissolves organic/necrotic tissue.
- B. It is not used as a lubricant (that is the role of agents like EDTA gel/RC-Prep).
- C. NaOCl removes the organic component; EDTA is needed to remove the inorganic smear layer — so 'only' is wrong.
- D. It is not radiopaque.