Root canal treatment is clinically known as root canal therapy, and the steps mainly include pulp-opening treatment, root canal preparation, root canal filling, and tooth restoration, etc. It usually requires 2-4 visits. The steps of root canal treatment mainly include pulp opening, root canal preparation, root canal filling and tooth restoration, etc. The first visit is usually to identify the cause of the disease and to determine the need for restoration. The first visit is usually to identify the cause of the disease and determine the need for root canal treatment, and then begin the first step of pulp-opening treatment to explore the root canal. In the second visit, root canal preparation is performed to remove the infected material from the root canal. The duration of this step depends on the number of root canals and the difficulty of the preparation. The third visit is for root canal filling and, if time permits, restoration of the tooth. However, this varies from person to person, so it is advisable to consult a medical professional.