Sometimes, a root canal is needed when there is an infection within the tooth from severe decay or trauma. Usually, pain relief is accompanied by the completion of a root canal. Root canals are relatively comfortable because we make sure your tooth is numb during the entire procedure. The diseased pulp inside the tooth is carefully removed and the inner portion of the tooth is cleaned and disinfected. The inside of the tooth is then filled with a permanent filling material and your tooth may need a large filling or a crown after the root canal is complete to ensure the longevity of the tooth.