Pulp Chamber
The central coronal cavity within the crown of a tooth that contains the coronal pulp tissue and communicates with the root canals below.
Full Definition
The pulp chamber is the largest component of the tooth's internal pulp space, situated within the crown and bounded by dentine walls and the pulpal roof and floor. It is distinct from the root canals, which are the narrower extensions into the roots. In editorial review, authors sometimes use 'pulp chamber' and 'pulp cavity' interchangeably; 'pulp cavity' is the broader anatomical term encompassing both the chamber and the canals, and editors should flag imprecise usage. The plural 'pulp chambers' applies in studies involving multiple teeth.
Usage
Usage note: Distinguish from 'pulp cavity,' which includes both the chamber and the canals. Two words; do not hyphenate.
In Context
- "Calcification of the pulp chamber makes access cavity preparation challenging in older patients." — Clinical article on geriatric endodontics
- "The pulp chamber was filled with haemorrhagic exudate, consistent with acute pulpitis." — Case report, clinical findings