Department of Prosthodontics, Institute for Clinical Dental Research, KUMC, Korea University, Seoul, Korea.
J Adv Prosthodont. 2012 Nov;4(4):204-9. doi: 10.4047/jap.2012.4.4.204. Epub 2012 Nov 29.
The aim of this systematic review is to address treatment outcomes of Mandibular implant overdentures relative to implant survival rate, maintenance and complications, and patient satisfaction.
A systematic literature search was conducted by a PubMed search strategy and hand-searching of relevant journals from included studies. Randomized Clinical Trials (RCT) and comparative clinical trial studies on mandibular implant overdentures until August, 2010 were selected. Eleven studies from 1098 studies were finally selected and data were analyzed relative to number of implants.
Six studies presented the data of the implant survival rate which ranged from 95% to 100% for 2 and 4 implant group and from 81.8% to 96.1% for 1 and 2 implant group. One study, which statistically compared implant survival rate showed no significant differences relative to the number of implants. The most common type of prosthetic maintenance and complications were replacement or reattaching of loose clips for 2 and 4 implant group, and denture repair due to the fracture around an implant for 1 and 2 implant groups. Most studies showed no significant differences in the rate of prosthetic maintenance and complication, and patient satisfaction regardless the number of implants.
The implant survival rate of mandibular overdentures is high regardless of the number of implants. Denture maintenance is likely not inflenced substantially by the number of implants and patient satisfaction is typically high again regardless os the number of implants.
本系统评价旨在探讨下颌种植覆盖义齿的治疗效果，包括种植体存活率、维护和并发症以及患者满意度。
通过 PubMed 检索策略和纳入研究的相关期刊的手工检索进行系统文献检索。选择下颌种植覆盖义齿的随机对照临床试验（RCT）和临床对照试验研究，检索时间截至 2010 年 8 月。最终从 1098 项研究中选择了 11 项研究，并根据植入物数量分析了数据。
6 项研究报告了种植体存活率的数据，2 个和 4 个种植体组的存活率范围为 95%至 100%，1 个和 2 个种植体组的存活率范围为 81.8%至 96.1%。一项研究对种植体存活率进行了统计学比较，结果显示与植入物数量无显著差异。最常见的修复体维护和并发症类型是 2 个和 4 个种植体组的松动夹更换或重新固定，1 个和 2 个种植体组的义齿修复是由于种植体周围骨折。大多数研究表明，无论植入物数量多少，修复体维护和并发症以及患者满意度的发生率均无显著差异。
下颌覆盖义齿的种植体存活率高，与植入物数量无关。义齿维护可能不会受到植入物数量的显著影响，患者满意度通常也很高，而与植入物数量无关。
