Obturation
Pronunciation: ob-tyoo-RAY-shun
The three-dimensional filling and sealing of the root canal system following root canal preparation, using a core material and sealer.
Full Definition
Obturation is the final filling phase of endodontic (root canal) treatment, in which the prepared and disinfected root canal space is filled — most commonly with gutta-percha points and an endodontic sealer — to prevent reinfection. The goal is to achieve a fluid-tight, three-dimensional seal from the access cavity to the apical foramen. Editors should note that 'obturation' refers specifically to this filling process and should not be used loosely to mean any 'blocking' in a dental context. Common obturation techniques referenced in literature include lateral compaction, warm vertical compaction, and single-cone techniques.
Usage
Usage note: Do not use as a synonym for general 'blocking' or 'occlusion'; in dental editorial contexts it refers exclusively to root canal filling.
In Context
- "Radiographic assessment confirmed satisfactory obturation with gutta-percha extending to within 1 mm of the radiographic apex." — Endodontic post-operative report
- "The obturation phase was completed using warm vertical compaction and a bioceramic sealer." — Endodontic treatment case report