Intracanal Medicament
An antimicrobial or anti-inflammatory agent placed within the root canal between appointments to reduce bacterial load and promote healing.
Full Definition
Intracanal medicaments are temporary agents applied to the root canal system during multi-visit endodontic treatment, most commonly calcium hydroxide, chlorhexidine gel, or antibiotic pastes (e.g., triple antibiotic paste). Their primary function is to suppress residual microorganisms that survive mechanical and chemical debridement. Editors should note that 'intracanal medicament' is the preferred formal term; 'interappointment dressing' or 'inter-visit dressing' are acceptable informal equivalents. The term is always written as two separate words and should not be hyphenated. Distinguishing this term from 'irrigant' is editorially important: irrigants are used during instrumentation, while medicaments are placed between visits.
Usage
Usage note: Do not hyphenate 'intracanal'; distinguish carefully from 'irrigant' (used during treatment) vs 'medicament' (placed between visits).
In Context
- "Calcium hydroxide was used as the intracanal medicament for a period of four weeks before obturation." — Clinical case note
- "The manuscript incorrectly referred to NaOCl as an intracanal medicament; it is an irrigant used during instrumentation." — Peer review comment