本文通过一个病例,牙源性角化囊肿和牙瘤、阻生牙一起的大囊肿,使下颌体破坏了80%。介绍了一种外科手术法——皮质剥除术和骨的置换,为下颌骨囊肿治疗,提供了良好的手术途径。病例报告:患者38岁,男性,无症状,上下颌部份无牙齿,没有戴义齿,全颌X片显示,下颌骨两侧第二磨牙区之间,有一个广泛的X射线透射区,骨质广泛破坏,左右血管神经束向下移位,右下尖牙水平阻生,移位于下颌骨联合处的下缘,尖牙上面有一个高钙化的复合牙瘤。为了术前明确诊断, This article through a case, and odontogenic keratocyst and dental tumor, large teeth together with the cyst, the destruction of the mandibular body by 80%. Introduced a surgical method - cortex stripping and bone replacement, for the treatment of mandibular cysts, provides a good surgical approach. Case Report: Patient 38 years old, male, asymptomatic, maxillary and mandibular partially toothless, with no denture. The full jaw X-ray showed a wide range of X-ray transmission areas between the second molar area on both sides of the mandible Extensive destruction of quality, left and right vascular bundle downward shift, right lower canine level of impaction, moved to the lower edge of the joint at the mandible, canine above a high calcification compound odontoma. In order to make a clear diagnosis before surgery,