Filling usually refers to filling surgery, if only the remaining root is unable to be restored using filling surgery, the restorative options are pile core crown, fixed partial denture, implant denture, etc., as follows. 1. Pile and core crown: If the root has enough length, and the root surface height of at least 1.5mm below the section can be exposed after treatment, a pile can be inserted into the root canal to make a core, and crown restoration can be carried out on top of the pile and core. 2. Fixed partial denture: If there is inflammation or other lesions on the root, it is recommended to make a fixed partial denture by using the adjacent teeth for retention after extraction. 3. Implant denture: If the root of the tooth is not suitable for retention, and the alveolar bone has enough thickness after extraction, an implant denture can be made. For the same disease, different patients have different conditions and different treatment options, so it is recommended to go to the hospital for consultation.