Implant denture is a dental implant (artificial tooth root) placed in the alveolar bone of the missing tooth area in the mouth, and after the implant is integrated with the alveolar bone, a restoration is made on its upper end to complete the restoration of the implant denture. It is suitable for patients with no contraindications to dental implant surgery who have missing front teeth, missing back teeth and patients without teeth. The denture has better support, retention, comfort and stability, and is an ideal restoration method for patients with missing teeth. Implant denture restoration will be the future development direction of missing tooth restoration because it does not damage other teeth and has less adverse reactions. With the help of implant technology, the overdenture or fixed removable denture will greatly improve the retention and chewing efficiency of the denture. Compared with traditional removable dentures, dental implants do not have rings and abutments, so they do not need to be removed and washed every day, and there is little foreign body sensation and no painful pressure. There is no risk of losing teeth at night and slipping into the airway or esophagus; there is no damage to good teeth due to the retaining ring; the retention force, chewing force and aesthetics are very close to real teeth. Compared with traditional porcelain teeth, there is no need to wear the natural teeth. Therefore, in developed countries, dental implants have long been the first choice of restoration for patients with missing teeth.