A proposal to develop a new classification for pulp chamber anatomy

It is well known that the human dentition varies considerably in terms of the anatomy of roots, pulp chambers and root canals (1–5). This variation is obvious between tooth types, individuals and population groups and is influenced by age, caries, tooth surface loss, developmental defects, anomalies, trauma and a range of other conditions (2–5). The pulp chamber is defined as the portion of the pulp space within (or extending just apical) the anatomic crown of the tooth that contains the coronal pulp tissue and consists of the pulp horn(s) and body leading to the orifice(s) of the root canal(s) (6, 7). The shape, size and position of the chamber originally reflects the anatomy of the crown (8), but is particularly subject to morphological changes as a result of age and as a defensive mechanism against irritation