Root canal treatment is the removal of the tooth’s pulp, a small, thread-like tissue in the center of the tooth. Once the damaged, diseased or dead pulp is removed, the remaining space is cleaned, shaped and filled. This procedure seals off the root canal. Years ago, teeth with diseased or injured pulps were removed. Today, root canal treatment saves many teeth that would otherwise be lost. We do many root canals in one visit with minimal to no discomfort! Following a root-canal treatment, it is common to cement a post in the tooth and build up the core with filling materials to strengthen the tooth internally, then place a crown to strengthen the tooth externally.