If the pulp (inner part of the tooth containing nerves and blood vessels) becomes infected or decayed, root canal therapy can treat the infection. An infected or damaged pulp frequently causes sensitivity to hot or cold, pain when biting, spontaneous pain, or swelling. However, in some cases, there may be no symptoms at all. If left untreated, this may lead to severe infection or loss of the tooth. For affordable dental services and insight into whether or not you need a root canal, call our office.