The words root canal can strike fear in the heart of even our bravest patients, but they shouldn’t. The pain associated with root canal therapy is actually caused by the infection that precedes the procedure. Root canals are necessary when tooth decay or trauma accesses the inner, pulp, layer of teeth. The nerve system of teeth is housed within the pulp, and when decay or damage accesses the nerve, the result is a severe toothache. Root canal therapy is a simple procedure that removes the infected tissue, restores the damaged tooth, and in most cases, root canals relieve the toothache pain almost immediately.