Endodontics, or root canal treatment is often the last resort, allowing you to keep the damaged tooth decay in the mouth. Untreated caries, periodontal disease and other diseases of the oral cavity may lead to the penetration of bacteria into the tooth, causing pain, necrosis, discoloration, or weakness. When this process is not stopped in time, it destroyed the tooth must be removed. Endodontics is based on a thorough cleaning of root canals in the affected tooth and the filling tightly. This treatment is designed to kill bacteria and inhibiting the progression of the disease.