Dental pulp is the soft tissue of the tooth. The pulp occupies the internal cavities or spaces of the tooth which include the pulp chamber and the pulp canal (root canal). The shape of the pulp cavities correspond to the external outline form of the tooth (the shape of the pulp chamber corresponds to the shape of the crown whereas the shape of the pulp canal corresponds to the shape of the root). The size of the pulp cavity depends on the age of the tooth and history of trauma. At the apical end of the root there is an opening through which the neurovascular bundle enters the pulp canal called the apical foramen. The pulp horns are projections or prolongations of the pulp in the roof of the pulp chamber that correspond to the major cusps or lobes of the crown.................
