Abstract: The conventional complete denture is difficult to be accepted by edentulous patients due to its poor stability and retention as well as low masticatory efficiency. Owing to these disadvantages，there has been increasing clinical application of the edentulous implant overdentures supported and retained by implants，mainly because of its improved stability and satisfaction. However，the components and superstructure design of edentulous implant overdentures are complex. Complications of the edentulous implant overdentures vary widely and depend on bone conditions，vertical dimensions，oral hygiene maintenance and so on. The correlational research on the location and number of implants，selection of the attachment and complications will be discussed in this paper.

Key words: edentulous jaw, implant overdenture, prosthesis design, complications

摘要： 传统全口义齿有稳定性差、固位不良、咀嚼效率低等缺点，难以被患者接受。与传统全口义齿相比，无牙颌种植覆盖义齿由种植体提供支持或辅助固位，可获得较好的稳固性和患者满意度，得以在临床广泛应用。然而，无牙颌种植覆盖义齿组成结构和修复设计复杂，受患者自身颌骨条件、修复空间和口腔卫生维护能力等因素的影响，在使用过程中易发生并发症。文章就无牙颌种植覆盖义齿修复设计中种植体数量、位置和附着体类型的选择及并发症做一阐述。

关键词: 无牙颌, 种植覆盖义齿, 修复设计, 并发症