Zhang Qi, Jin Xin, Yu Mengliu, Ou Guoming, Matsui Hiroyuki, Liang Xing, Sasaki Keiichi
Int J Prosthodont. 2017 Jul/Aug;30(4):321-326. doi: 10.11607/ijp.5023.
Edentulous patients benefit significantly from implant-supported overdenture prostheses. The purpose of this systematic review was to evaluate the cost-effectiveness of implant-supported overdentures (IODs) for edentulous patients.
The search was limited to studies written in English and included an electronic and manual search through MEDLINE (Ovid, 1946 to November 2015), Embase (Ovid, 1966 to November 2015), Cochrane Central Register of Controlled Trials (CENTRAL) (to November 2015), and PubMed (to November 2015). Two investigators extracted the data and assessed the studies independently. No meta-analysis was conducted due to the high heterogeneity within the literature.
Of the initial 583 selected articles, 10 studies involving 802 participants were included. Of these, 6 studies had a high risk of bias and the rest had an unclear risk of bias. Implant-supported prostheses were more cost-effective when compared to conventional dentures and fixed implant-supported prostheses. Overdentures supported by two implants and magnet attachment were reported as cost-effective.
Implant-supported overdentures are a cost-effective treatment for edentulous patients. More clinical studies with appropriate scientific vigor are required to further assess the cost-effectiveness of implant-supported overdentures.
无牙颌患者从种植体支持的覆盖义齿修复中获益显著。本系统评价的目的是评估种植体支持的覆盖义齿（IOD）用于无牙颌患者的成本效益。
检索限于英文撰写的研究，包括通过MEDLINE（Ovid，1946年至2015年11月）、Embase（Ovid，1966年至2015年11月）、Cochrane对照试验中央注册库（CENTRAL）（至2015年11月）和PubMed（至2015年11月）进行电子和手工检索。两名研究者独立提取数据并评估研究。由于文献中异质性高，未进行荟萃分析。
在最初筛选的583篇文章中，纳入了10项涉及802名参与者的研究。其中，6项研究存在高偏倚风险，其余研究的偏倚风险不明确。与传统义齿和固定种植体支持的义齿相比，种植体支持的义齿更具成本效益。据报道，由两颗种植体和磁性附着体支持的覆盖义齿具有成本效益。
种植体支持的覆盖义齿是无牙颌患者的一种具有成本效益的治疗方法。需要更多具有适当科学活力的临床研究来进一步评估种植体支持的覆盖义齿的成本效益。
