Immediate restoration refers to the immediate restoration of the superstructure of the temporary denture with the main purpose of restoring the aesthetics after implant placement, and the permanent restoration will be completed after the implant has been osseointegrated in 3-6 months, which greatly shortens the time of the patient’s missing anterior teeth and improves the patient’s facial aesthetics and subjective satisfaction. Indications and precautions for immediate restoration: 1. It is mainly applicable to patients with high aesthetic requirements for missing anterior teeth, but the condition of the alveolar bone in the edentulous area should be able to guarantee the initial stability of the implant after implant placement. It is generally required to have a torque > 35 N.cm at the time of implant placement. 2. Patients with immediate restoration should have good compliance and avoid stress on the anterior temporary denture, especially within 1 month after implant surgery; and should follow up on time so that the doctor can keep abreast of the implant. 3, severe deep coverage, deep overdenture patients, patients with heavy smoking or teeth grinding disease should not be used. Immediate implant restoration without flap is to place the implant immediately after the tooth is extracted and to place a temporary crown restoration supported by the implant. The advantage is that the extraction is preserved. The blood supply to the bone wall of the socket is preserved, the natural shape of the gingival biology and gingival contour of the original natural tooth and the integrity of the hard and soft tissues are maintained, the patient’s injury and pain are minimally invasive, the patient’s aesthetics and pronunciation are immediately restored, and the psychological and social impact of the edentulous period is avoided, which is a restorative method that the patient is happy to accept.