A Deep Decay into pulp chamber with Infections draining to the Bottom of the root tip with Abscess. Infection or Abscess causes a swelling and pain around the area of the Tooth involved. Root canal treatment is needed when the tooth's root becomes infected or inflamed through injury or advanced decay.
In order to relieve the pain and we need to Drain the abscess. A Route to the Root canal is needed. The tooth is anesthetized. An opening is made through the crown of the tooth to the pulp chamber.
Removing the Infected/Inflamed Tissue and Drainage of Infections inside tooth canal and from Bone thru root canals. Special files are used to clean the infection and unhealthy pulp out of the canals. Irrigation is used to help clean the main canal and lateral canal.
Filling the Canals. The canals are filled with a permanent material, often gutta-percha ( Rubber Like Material) with resin cements. This seals the tooth root canal and helps to keep the canals free of infection or contamination which in turn stops the infections draining to the bone thru root canals ever again.
As the Center of Tooth is empty and has no more blood supply into the Tooth, Tooth gets very brittle and weak to the pressure. For a Extra Support, a post and Composite Resin build up is done.
Even with post and core build up, root canal treated Tooth can Fracture right down to the bottom of the Root needing a Extraction. Therefore, to protect the the Tooth and to hold a tooth in place, A crown, sometimes called a cap, is made to look like a natural tooth is placed on top.