Root canal treatment is mainly a treatment method for caries disease. At present, the development of root canal treatment technology is on the rise, and it is a delicate oral surgery, mainly divided into three steps: preparation, disinfection, and filling. Root canal treatment is divided into three steps, the first is the root canal preparation stage, which usually requires preoperative evaluation, pulpal preparation and working length determination before the procedure is done. Usually a combination of physical and chemical methods are used for root canal preparation. Then the root canal disinfection stage has to be performed; finally the root canal filling stage is entered. The requirements for the patient to enter the filling stage are very high, the organism must have no obvious percussion pain, the root canal is clean, no odor, and no exuding fluid before the filling can be performed. The current methods of filling are the lateral compression method with cold dental cement and the hot compression cement, both methods. During the root canal procedure, an x-ray is taken to determine the structure of the affected area and the surgical plan, and then the patient is given local anesthesia; secondly, the patient’s tooth is drilled to remove the decayed dentin from the tooth; next, the pulp chamber is opened, the necrotic pulp is removed, the root canal is enlarged with a root canal drill, the inside of the root canal is flushed with an antiseptic solution, the root canal is filled with a special material, and finally the missing tooth is filled. Drilled hole. The dental root canal treatment method begins with a preparation and ends with a surgery, during which aseptic operation is maintained.