Endodontics · single question
After completing root canal cleaning and shaping, which medicament is most commonly placed inside the canal before obturation?
Show answer and explanation
Correct answer: A. Calcium hydroxide
- A. Correct. Calcium hydroxide is the standard interappointment intracanal medicament — high pH gives antimicrobial action and helps dissolve residual tissue.
- B. EDTA is a chelating irrigant for the smear layer, not an inter-visit dressing.
- C. NaOCl is an irrigant used during shaping, not a sealed-in dressing.
- D. Formocresol is used in primary-tooth pulpotomies, not as a routine adult intracanal medicament.