Abstract: The maxillary defect is a common facial deformity due to oral and maxillofacial oncology resection，which has a harmful effect on the patient's facial appearance，swallowing，chewing，and social activities. As one of the most important bony supports in the middle face，the reconstruction of the maxillary defect is also challenging for maxillofacial surgeons. There are multiple reconstructive options for the different types and positions of the defects，and the optimal plan should be made according to the patient-specific situation and the local medical condition. This article briefly introduces the application of common surgical reconstructive methods in maxillary defects.

Key words: maxillary defect, microsurgery, reconstruction, composite flaps

摘要： 上颌骨缺损是口腔颌面头颈肿瘤术后的常见面部畸形，对患者的面容、吞咽、咀嚼及社交活动均有重要影响。作为面中份的重要骨支撑之一，上颌骨的修复重建也是颌面外科具有挑战性的工作，针对不同类型和部位的缺损修复方式有多种选择，需要根据患者个体的具体情况和医疗机构及医生的技术条件而定。文章就常用的外科修复方式在上颌骨缺损重建中的应用做一介绍。

关键词: 上颌骨缺损, 显微外科, 修复, 复合组织瓣