This fact is from Root Canal Irrigants in Conservative & Endodontics. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
NaOCl = most commonly used irrigant dissolves organic tissue
EDTA = removes smear layer chelating agent inorganic
CHX = chlorhexidine has substantivity antibacterial
Ca(OH)2 = most popular intracanal medicament
MTAD = mixture of doxycycline citric acid Tween
Smear layer has organic and inorganic components