目的　探讨解决牙周骨缺损的修复方法。方法　采用牙周外科手术进行骨修整,同时对骨缺损区进行自体骨移植。结果　76 例患者244 个牙位,牙周袋深度平均减浅4 .85 m m ;附着水平明显增加,平均为4 .56 m m ;新骨形成量占根长的比例平均为74 .46 % 。结论　术前进行积极有效的系统治疗,术后保持良好的口腔卫生,是牙周骨外科手术成功的关键环节 Objective To investigate the method of repairing periodontal bone defect. Methods Periodontal surgery was used for bone reshaping, while autologous bone graft was performed on the bone defect area. Results There were 244 teeth in 76 patients. The depth of the periodontal pocket was reduced by 4.85 m m on average. The attachment level increased obviously with an average of 4.56 m m. The average ratio of new bone formation to root length was 74.46%. Conclusion Preoperative positive and effective systemic treatment, good oral hygiene after surgery is the key to the success of periodontal surgery