Root canal treatment, also known as endodontic therapy, is a dental procedure that is performed to save a severely damaged or infected tooth. The procedure involves removing the infected or inflamed pulp (nerve tissue) from the inside of the tooth, cleaning and shaping the root canals, and filling them with a biocompatible material.

Root canal treatment is typically performed when a tooth is infected or damaged due to decay, trauma, or other factors. Common symptoms that may indicate the need for a root canal include severe toothache, sensitivity to hot or cold temperatures, swelling and tenderness in the gums, and discolouration of the affected tooth.

Root canal treatment is usually performed under local anaesthesia, so the patient does not experience any pain during the procedure. Once the treatment is complete, the tooth may be restored with a filling, crown, or other dental restoration devices, depending on the extent of the damage.

With proper care and maintenance, a tooth that has undergone root canal treatment can last a lifetime.