A root canal treatment is used to repair and save a badly damaged or infected tooth. If the decay in the tooth is small it usually needs a filling. If the decay is larger it may need a crown. If the decay is very large and reaches the nerve (pulp) deep in the tooth, then root canal treatment may be necessary to save the tooth. The procedure involves removing the damaged, infected area of the tooth (the pulp), cleaning and disinfecting it and then filling and sealing it. Some common causes harming the pulp are a cracked tooth, a deep cavity, repeated dental treatment to the tooth or trauma.
Severe tooth pain is often the symptom the patient has when seeking care. We often take x-rays and do various other tests to confirm the cause. Root canal therapy can be done comfortably with local anesthetics. Nitrous oxide analgesia is available if needed. After completion of the root canal the tooth often needs further restoration, such as a reinforcing post and crown.