Root canal therapy is an indispensable procedure in treatment of teeth that are severely decayed, infected, or broken. Root canal therapy can maintain your teeth for years, saving them from extraction.
The dentist will access the pulp chamber in the crown of the tooth and will reveal the canals contained in the roots of the teeth. The infected nerve is removed and the canals are shaped using special files to smooth the walls and ensure no pulp tissue or infection is left. The canals are then filled with a special material that seals off the root canals.
Unfortunately, after root canal therapy the tooth often becomes weak and it often cracks with pressure. To protect the tooth from fracture, it is recommended that a tooth that has undergone root canal therapy be restored with a crown (also referred to as "cap").
Some unusual circumstances (difficult access, calcified or extremely curved canals) can occur and is then necessary to refer the patient to endodontists specialized in root canal therapy.