Endodontics is a branch of dentistry that deals with prevention, diagnosis, and treatment of dental pulp distorsions. Endodontic therapy Rooth canal treatments aim at maintaining sick or decayed teeth. Laser endodontic therapy The latest modern dentistry treatment is the diod laser root canal treatment. This treatment offers many benefits to patients; it lessens anxiety prior to the procedure and changes patients’ opinion on dentistry in general. Diod lasers use special hairs of varying diameter and length for better acces in order to extract dental and pulp tissues from root canal walls and then for preparation and sterilization of root canals for their subsequent closure.