If a tooth has suffered damage within its nerve and blood vessels due to either trauma, deep decay or extreme wear, it may still be possible to save if Root Canal Therapy (RCT) is performed. If the tooth remains untreated, an infection (tooth abscess) may develop resulting in pain and swelling.
RCT involves the careful removal of the dead nerve tissue within the tooth, hence, preventing the development of infection within the root system. The procedure is performed under local anaesthetic over 3-4 visits. At each visit, a rubber dam sheath is placed around the tooth to ensure the open cavity that leads to the roots is not contaminated with saliva.
Once the nerve canals are completely cleaned, they are sealed and a final restoration is placed. Quite often, crowning of root-filled teeth is necessary if parts of the remaining tooth structure are weak.