目的对35例上下颌骨囊肿术前术中与口腔相通的临床资料分析,探讨术后能彻底关闭囊肿与口腔相通的瘘口方法。方法囊肿刮治术后咬除部分牙槽骨,术中分别采用褥式缝合,切断骨膜减张,切除瘘口重新缝合后将之移位于有骨壁支持的地方外用碘仿纱条覆盖的方法。结果 35例中,33例能很好愈合,2例裂开,治愈率94.2%。结论瘘口组织的厚度和切口处是否有骨壁支持是封闭瘘口成功与否的关键。 Objective To analyze the clinical data of 35 cases of mandibular cyst preoperatively and simultaneously with the oral cavity, and to explore the method of completely closing the fistula after the operation. Methods After partial mastectomy and partial mastectomy of the alveolar bone, the patients were treated with mattress sutures and periosteal sutures respectively. The resected fistula was re-sutured and then transferred to the place with bone wall support. method. Results Among the 35 cases, 33 cases were well healed, 2 cases were split open, the cure rate was 94.2%. Conclusion The thickness of the fistula and the presence or absence of bone wall at the incision are the keys to the successful closure of the fistula.