牙周炎导致的牙列缺失常伴随严重的牙槽骨吸收,甚至出现上下颌骨体的吸收。松动牙的拔除时机和标准,软硬组织量不足,不同区段骨吸收量不均一,咬合关系异常或不稳定,永久修复前的缺牙期,种植义齿的固位方式、被动就位、咬合设计,防止修复后的种植体周围骨吸收,维持口腔自洁作用及降低患者远期维护成本等问题均是全颌固定种植义齿修复设计时需要考虑的关键因素。本文总结分析四川大学华西口腔医学院种植中心分段式全颌固定种植义齿修复病例,探讨修复设计、种植手术、早期过渡义齿修复和永久修复过程中遇到的问题及思考。 Periodontitis caused by the lack of dentition often accompanied by severe alveolar bone absorption, and even the absorption of the mandibular body. Loose tooth extraction timing and standards, the lack of soft and hard tissue, different sections of the bone absorption imbalance, abnormal or unstable occlusion, permanent repair of the missing period, implant denture retention, passive position, occlusion Design, to prevent bone resorption around the implants after repair, to maintain the role of oral self-cleaning and reduce the cost of long-term maintenance of patients and other issues are the whole mandibular fixation implant prosthesis design and repair of the key factors to be considered. This article summarizes and analyzes the segmented maxillary fixed denture restoration in the planting center of Huaxi Stomatological College of Sichuan University and discusses the problems and thinking in the process of restoration design, implant surgery, early transitional denture repair and permanent restoration.