The whole procedure of dental implant: I. Pre-operative examination and design according to the characteristics of the case, the receiving doctor asks the patient in detail about the general condition and oral examination, and takes surface tomography or oral CT to understand the bone quality and bone quantity of the missing teeth in order to determine whether the patient is suitable for dental implant and to provide the best treatment plan for the patient. Second, implant placement is performed under local infiltration anesthesia. The implant is placed into the alveolar bone of the missing tooth area for screw closure and then tightly sutured, and the stitches are removed after 7-10 days. The bone healing period is generally about 4 months for maxillary bone healing and 3 months for mandibular bone healing after implant placement, if artificial bone implant surgery is performed during dental implant placement, the bone healing period will be extended to 6 months accordingly. When the implant is united with the jawbone, a healing abutment is attached to the implant to form the soft tissue for 2-3 weeks, sometimes in the same period during the first stage of surgery. V. When the soft tissue cuff is formed, the surgeon uses a transfer bar to transfer the model, take the model and design the restored tooth, and the tooth can be worn in 7-15 days. In addition after the dental implant restoration, a review is recommended every 3-6 months and up to 1 year.