When nerve tissue or pulp is damaged, it breaks down, and bacteria begin to multiply within the pulp chamber. The bacteria and other decayed debris can cause an infection or abscessed tooth at the end of a tooth’s root. That when tooth need root canal treatment. Root canal treatment is a treatment used to repair and save a tooth that is badly decayed or infected. During treatment, the nerve and pulp are removed, and the inside of the tooth is cleaned and sealed with a rubber-like material called gutta-percha. Saving the natural tooth with root canal treatment has many advantages, such as efficient chewing, normal biting force and sensation, natural appearance, protects other teeth from excessive wear or strain. Root canal treatment will helps you maintain your natural smile, continue eating the foods you love and limits the need for ongoing dental work. With proper care, most teeth that have had root canal treatment can last as long as other natural teeth and often for a lifetime.