The purpose of pulp therapy in Dentistry is to sustain the life of the affected tooth (so the tooth is not lost).
Dental caries (cavities) and injury are the main reasons for a tooth to require pulp therapy.
Pulp therapy is required when the entire pulp of the tooth is involved. During this treatment, the diseased pulp tissue is completely removed from both the crown and root. The canals are cleaned, disinfected and, in the case of primary teeth, filled with a restorable material. Then, a final restoration is placed. A permanent tooth would be filled with a non-resorbing material.