种植技术作为修复牙列缺损及缺失的重要手段,已经逐渐被患者广泛接受。但长期缺牙、外伤及肿瘤等各种原因造成的种植区的牙槽嵴高度或(和)宽度不足限制了种植技术的应用。近十多年种植外科技术的迅速发展,使骨量不足时的种植修复成为可能。上置法骨移植技术因其不仅能增加牙槽 As an important means of repairing dentition defect and missing, planting technique has gradually been widely accepted by patients. However, the lack of alveolar crest height and / or width in planting areas caused by various reasons such as long-term edentulous, traumatic and tumor limits the application of planting techniques. The rapid development of implant surgery in the past ten years has made it possible to restore the plantation when the bone mass is insufficient. The upper bone graft technique not only increases the alveoli