Root canal therapy (aka endodontic treatment) is necessary when a cavity that has been left untreated becomes very large. Once the cavity reaches the pulp of the tooth, an infection forms at the base of the root canal, causing an abscess. This abscess is generally painful and will need to be removed.
The doctors at Advanced Dentistry Center know that serious tooth decay can often lead to a root canal. A root canal may be needed if the decay has reached the tooth’s nerve. Essentially, root canal therapy involves cleaning out a tooth’s infected root, then filling and sealing the canal.