Root canal therapy is one of the most common procedures done, when decay involves dental pulp. Tooth nerves have no protection and they slowly deteriorate when they are exposed to bacterial toxics for a long time. If the decay is not treated, it will penetrate tooth canals and destroy the surrounding tissue. In some cases, the infection enters the blood flow and effects the patient’s health in a negative way. If the problem gets diagnosed early and the treatment begins on time, the pulp can be saved and root canal therapy may not be needed