Cavities often lead to toothaches, a result of your tooth’s nerves being exposed due to decay. The pain may get unbearable. This is where root canal therapy comes to the rescue. Dr. Farid Nikfar, Family Dentist, can help you out under these circumstances. Root canal therapy helps relieve the pain and avoid the need to extract your decayed tooth. The pulp of your tooth is removed, the canals reshaped, and filling material placed into the cavity. After a root canal procedure, the tooth can essentially be considered dead. Without the nerves, you are unable to feel the pain, and the cavities are prevented from spreading any further.