To explore the sequence treatment of adult alveolar cleft by the method of mandibular bone transplantation for the repair of congenital adult alveolar bone defect and delayed implant restoration of missing teeth.

10 patients with alveolar cleft patients were underwent alveolar bone grafting with mandibular chin bone graft, 11 dentinum implants were placed at the donor site after 5 months.

11 implants functioned well at the end of observation period. No bone graft was absorbed and the aesthetics effect was satisfactory.

The mandibular chin bone repairing alveolar cleft bone defect and installing implant can be a good sequence treatment method to adult congenital alveolar cleft.