Endodontics · single question
What intracanal solution is most commonly used to irrigate the root canal system?
Show answer and explanation
Correct answer: B. Sodium hypochlorite
Sodium hypochlorite (NaOCl) is the gold-standard root canal irrigant — it dissolves organic/necrotic pulp tissue and has potent antimicrobial activity. Camphorated phenol and formocresol are intracanal medicaments/dressings (placed between appointments), not standard irrigants, and MTA is a filling/repair material, not an irrigant.