Gen Dent. 2021 Jul-Aug;69(4):e1-e5.
The aim of this study was to compare the use of titanium and ceramic implants for overdentures in terms of their failure rates, surface treatments, and marginal bone loss (MBL). The literature was searched using the PubMed, Scopus, and Cochrane databases up to October 2019. Clinical studies in which ceramic and titanium implants for overdentures were compared in terms of their failure rates, surface treatments, and MBL were included in the meta-analysis. The meta-analysis was performed based on the Mantel-Haenszel and inverse variance methods using a fixed-effects model and 95% confidence intervals. A total of 2747 publications were identified after the exclusion of duplicate articles. Fifteen were selected for full-text reading, and 2 were included in the review. Each of the 2 studies initially enrolled 24 patients, and a total of 38 patients (mean age of 62 years) were evaluated at the 1-year follow-up. A total of 112 titanium implants (success rate of 71.1%) and 146 ceramic implants (success rate of 65.9%) were placed. Twenty titanium implants failed, and an associated MBL of 0.15 mm was observed. For ceramic implants, 42 failures occurred, and an associated MBL of 0.33 mm was observed. Titanium implants provided better clinical results (less MBL and lower failure rate) for the support of overdentures than did ceramic implants.
本研究旨在比较钛和陶瓷种植体用于覆盖义齿的失败率、表面处理和边缘骨吸收（MBL）。使用 PubMed、Scopus 和 Cochrane 数据库检索文献，检索时间截至 2019 年 10 月。纳入了比较覆盖义齿中陶瓷和钛种植体的失败率、表面处理和 MBL 的临床研究进行荟萃分析。荟萃分析采用 Mantel-Haenszel 和逆方差方法，使用固定效应模型和 95%置信区间进行分析。排除重复文章后，共确定了 2747 篇出版物。有 15 篇被选作全文阅读，其中 2 篇被纳入综述。这两项研究最初各纳入 24 名患者，共有 38 名患者（平均年龄 62 岁）在 1 年随访时进行了评估。共植入了 112 个钛种植体（成功率为 71.1%）和 146 个陶瓷种植体（成功率为 65.9%）。有 20 个钛种植体失败，观察到相关 MBL 为 0.15mm。对于陶瓷种植体，有 42 个失败，观察到相关 MBL 为 0.33mm。钛种植体为覆盖义齿提供了更好的临床效果（更少的 MBL 和更低的失败率）。
