Endodontic therapy, or root canal, is done for a tooth when the nerve is irreversibly inflamed, infected with bacteria or necrotic. Signs you may need a root canal include:
Endondontic therapy is completed to alleviate the above symptoms and save the effected tooth rather than have it extracted. During endodontic therapy, the nerve of the tooth is removed and the inside of the tooth is cleaned of bacteria and debris.
After root canal treatment, posterior teeth must typically receive crowns to stabilize the tooth structure, hold remaining structure together, and prevent non-restorable fractures in the remaining structure. Anterior teeth will require the root canal access be filled with composite resin filling material to seal the access from further bacterial invasion. Choosing endodontic therapy is choosing to save your natural tooth.