摘要重度牙槽嵴缺损无法直接进行种植修复，严重影响患者生活质量。外置法植骨术是重度牙槽嵴骨缺损重建的主要治疗方法，其中自体骨块移植术应用最广泛，也是目前骨组织重建的临床研究重点。本文阐述了自体骨块移植术的特点和基本原则，从自体骨供区选择、外科操作原则以及植骨术式进展等方面进行全面分析，以期帮助临床医师进行临床决策，增加手术效果的可预测性，提升临床诊疗水平。

abstractsPatients with severe alveolar ridge defects cannot be directly implanted and repaired, which seriously affects their quality of life. Onlay bone grafting is the main solution for severe alveolar ridge bone defect reconstruction, among which autogenous block bone grafting is the most widely used and is also the focus of clinical research on bone tissue reconstruction. This article expounds the characteristics and basic principles of autogenous bone block grafting, and comprehensively analyzes the selection of autogenous bone donor site, the principles of surgical operation, and the progress of bone graft techniques. In order to help surgeons make correct clinical decisions, increase the predictability of surgical effects, and improve the level of clinical diagnosis and treatment.