A deep cavity or a fracture of the dental tissue causes damage to the dental pulp, which often results in dental pulp  necrosis or infection. In such cases, endodontic treatment (root canal treatment) is required, but, contrary to patients’ opinions, the tooth does not have to be extracted

Endodontic treatment involves removing the decomposed and infected tissue from the pulp chamber and the root canal, then filling the canal hermetically with special medicine.

If the tooth is too weak, additional support is inserted into the canal. Lastly, the tooth is covered with a ceramic crown that protects it from cracking.
More than 95% of endodontic treatments are successful.