Root canal therapy (also called endodontic therapy) is made necessary when decay reaches the “pulp”, or the nerve and blood supply in the tooth. Sometimes deep fillings or tooth trauma can cause damage to the pulp, which would also require root canal therapy. Once the pulp is affected, infection can extend through the root tip and damage the surrounding bone (this is often called an abscess). This infection is not only painful, it can also be dangerous. Once the pulp is infected it must be treated, and will not heal on its own. Another treatment option for infection would be to extract the tooth, but we try first to save the tooth if possible.
Common signs and symptoms pulp damage can include sensitivity to hot/cold/sweets, pain (especially to biting or chewing), swelling, and a bad taste in the mouth. However, not everyone has these symptoms, and sometimes there are no signs at all, until the person has a checkup or an x-ray is taken.
Although some teeth can be treated with root canals in our office, more complicated cases may be referred to a specialist called an Endodontist. Once the infection is identified, a root canal is done to clean out the pulp, to disinfect the space where the pulp was, and to fill in that pulp space to prevent any further infection. Usually a core build-up and crown is recommended for a tooth that has had root canal therapy, in order to prevent fracture of the tooth and leakage around the root canal.