The aging society of the global population has led to an increase in the number of patients with edentulous jaw, a common multiple disease. Given the developments in implant techniques, the method of implant denture has received a positive and good response in terms of the quality of life and psychological well-being of patients. Implant-supported overdenture in mandible has two main advantages. 1) It has better retention and chewing efficiency than those of mandibular conventional denture. The required implant site of implant-supported overdenture is less than that of fixed implant-supported denture and can repair more defect tissues to help restore beauty and pronunciation. The price of the former is more acceptable than that of the latter. Therefore, this article aimed to systemically analyze and further discuss the clinical effect of implant-supported overdenture in elderly patients; combine existing related studies on the selection of number, site, and upper restoration of implants; and illustrate the advantages of removable implant-supported protheses in the repair of toothless mandible.
无牙颌是一常见的口腔疾病，全球社会人口老化的发展趋势导致牙列缺失患者的人数相继增加。近年来，随着种植技术越发成熟，以种植义齿为导向的修复方式在提高患者的生活质量和改善心理素质方面均获得良好反响。下颌无牙颌种植覆盖义齿主要具有两大优势：相较于传统单颌全口义齿，具有更优良的固位和咀嚼效能；相较于种植固定义齿，所需的植入位点更少，且能恢复更多缺损的软组织，从而有助于恢复美观和发音，价格也更为患者所接受。因此，本文通过系统性的整理、分析和探讨下颌种植覆盖义齿针对老年牙列缺失患者的临床疗效，结合现有相关研究中对于下颌种植覆盖义齿操作过程中种植体数目、植入位点及上部修复体的选择要点，进一步阐释其在下颌无牙颌修复中的优势。.
Keywords: complete denture; edentulous jaw; implant-supported overdenture; oral health-related quality of life.