Pulp canal obliteration

Pulp canal obliteration (also termed pulp chamber obliteration or root canal obliteration) is a condition which can occur in teeth where hard tissue is deposited along the internal walls of the root canal and fills most of the pulp system leaving it narrowed and restricted. Pulp canal obliteration (also termed pulp chamber obliteration or root canal obliteration) is a condition which can occur in teeth where hard tissue is deposited along the internal walls of the root canal and fills most of the pulp system leaving it narrowed and restricted. The exact causes of pulp obliteration are unclear but it typically occurs in response to dental trauma, especially following luxation injuries involving displacement, particularly if a tooth is replanted after being completely avulsed (knocked out) This response is common in this scenario and typically starts to occur several months after replantation. In other cases obliteration can occur if the tooth is drilled down extensively during dental treatment, e.g. during crown preparation.