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Each tooth has tissue containing nerve fibers that run through the center of the root of your tooth, which are called "root canals." When this tissue dies as a result of a deep cavity or trauma, root canal therapy is needed. Without treatment, pain gradually worsens, and the tooth can abscess and cause swelling.
Years ago, completing a root canal would take several, long visits to the dentist. Today, root canals can often be completed in less than one hour during a single visit, thanks to recent advances in technology and new dental techniques. Root canal treatment has a 95 percent success rate in saving infected teeth. And those teeth will be around for decades to come.
