Oral and Dental Health – What is Endodontics? Root canal treatment is applied owing to loss of vitality of tooth. This operation is completed in much shorter time with dental rotary tools in our clinic. There is a section consist of vessels and nerves under the enamel and dentin layers of the tooth and provide the vitality of tooth, called “pulpo”. This section extends to the teeth of the roots. Root Canal Treatment is called the process of sterilizing the canals by taking the nerves of the tooth and then filling them as a result of inflammation of pulpo for any reason. Treatment is performed in single session on vital tooth and two or three sessions on tooth that lost vitality.