When the health of a tooth is so poor that future infection is considered likely or inevitable, a pulpectomy, or removal of the pulp tissue, is advisable to prevent infection. Usually, some inflammation and/or infection is already present within or below the tooth. To cure the infection and save the tooth, we drill into the pulp chamber and remove the infected pulp by cleaning it out of the root canals. Once this is done, we fill the cavity with an inert material and seal up the opening. This procedure is known as “root canal therapy.” With the removal of nerves and blood supply from the tooth, it is best that the tooth is fitted with a crown; this increases the prognosis of the tooth by six times.