Root canal treatment involves the removal of the pulp tissues from the tooth in the event that it gets infected or inflamed. The pulp can be infected or inflamed due to either deep decay or an extensive restoration that involves the pulp; cracked or fractured tooth due to trauma; excessive wear of enamel and dentine exposing the pulp and sometimes as a result of severe gum disease.
Signs of pulp damage may include pain, prolonged sensitivity to heat or cold, discolouration of the tooth, swelling, tenderness of the overlying gums or a bad taste in the mouth. On the other hand, there may be no symptoms at all. If pulp inflammation or infection is left untreated, it can eventually cause pain, swelling and loss of the supporting bone. Root canal treatment saves teeth that would otherwise have been extracted.
Try to avoid chewing or biting on the tooth being treated until you have it permanently restored with either a filling or a crown. Excessive pressure at this stage may crack or fracture the tooth.
Therefore, it is very important to restore the tooth properly as soon as possible. Most endodontically-treated teeth last as long as natural teeth following permanent restoration.