Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu, South Korea.
Clin Implant Dent Relat Res. 2021 Apr;23(2):208-215. doi: 10.1111/cid.12967. Epub 2020 Dec 13.
There is a growing interest in factors leading to implant failure in older people as the population aged 65 years or older continues to expand.
We sought to identify differences of results in the implant survival rate and the influence of certain factors on implant failure in the older (≥65 years) and younger (<65 years) patients.
Patients who underwent their first dental-implant surgery between July 2008 and June 2018 were included. Data on age, sex, smoking habits, medical conditions, implant location, implant size, and the presence and type of bone graft and membrane were collected and analyzed according to age group. Moreover, cumulative survival rates of implants (by Kaplan-Meier analysis) and hazard ratios (HR) of each factor (using Cox regression analysis with shared frailty) in each group were assessed and results compared between groups.
A total of 628 implants in 308 patients and 1904 implants in 987 patients in the older and younger groups, respectively, were assessed, with failure rates of 3.9% and 3.4%. Per Kaplan-Meier analysis, the 11-year patient-level cumulative survival rate of implant treatment was 95.3% (95% CI: 0.91-0.97) in the older and 93.9% (95% CI: 0.88-0.97) in the younger group. The HR for implant failure of the variables, except diameter of dental implants, were not statistically significant in both groups.
The outcomes of implant treatment were not considerably different between the age groups.
随着 65 岁及以上人口的不断增加，人们对导致老年人种植体失败的因素越来越感兴趣。
我们旨在确定年龄较大（≥65 岁）和年龄较小（<65 岁）患者的种植体存活率差异以及某些因素对种植体失败的影响。
纳入 2008 年 7 月至 2018 年 6 月期间首次接受牙种植手术的患者。根据年龄组收集并分析了年龄、性别、吸烟习惯、医疗状况、种植体位置、种植体尺寸以及是否存在和类型的骨移植和膜的数据。此外，还评估了每个组中每个因素（使用具有共享脆弱性的 Cox 回归分析）的种植体累积存活率（通过 Kaplan-Meier 分析）和风险比（HR），并比较了组间结果。
分别在年龄较大和较小的组中评估了 308 名患者的 628 个种植体和 987 名患者的 1904 个种植体，失败率分别为 3.9%和 3.4%。根据 Kaplan-Meier 分析，年龄较大组患者水平 11 年的种植体治疗累积存活率为 95.3%（95%CI：0.91-0.97），年龄较小组为 93.9%（95%CI：0.88-0.97）。除了种植体直径外，两组中变量的种植体失败 HR 均无统计学意义。
两组之间种植体治疗结果没有明显差异。
