Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, PR China.
Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, PR China.
J Craniofac Surg. 2023;34(8):e720-e724. doi: 10.1097/SCS.0000000000009428. Epub 2023 May 29.
The objective of this systematic review and meta-analysis was to investigate the clinical significance of one-abutment at one-time protocol in healed posterior edentulism.
An online search was undertaken in November 2022, which included PubMed, Cochrane Library, Wiley Online Library, and Google Scholar in addition to manual searching. The Cochrane Collaboration tool was performed to assess the quality of selected articles. Marginal bone loss (MBL) was estimated by the performance of meta-analysis. Moreover, all the pooled analyses were based on random-effect models. Subgroup analysis was applied to evaluate the effects of different variables.
In line with the inclusion criteria, 6 trials with 446 dental implants were identified. The meta-analysis showed a total of 0.22 mm less MBL within 6 months and decreased by 0.30 mm at 1-year follow-up in favor of one-abutment at one-time protocol. A significant loss MBL was found in implants placed equicrestally using one-abutment at one-time protocol [6 months: mean difference (MD): -0.22 mm; 95% CI, -0.34 to 0.10 mm, P =0.0004; 12 months: MD: -0.32 mm; 95% CI, -0.40 to -0.24 mm, P <0.00001), whereas no difference was found between 2 groups in an implant placed subscrestally (6 months: MD: 0.14 mm; 95% CI, -0.03 to 0.22 mm; P =0.11; 12 months: MD: -0.12 mm; 95% CI, -0.32 to 0.08 mm; P =0.23).
Implant platform position might greatly affect the marginal bone level. Moreover, one-abutment at one-time protocol demonstrated better bone preservation in implants placed equicrestally in healed posterior edentulism.
This study highlights the significant clinical application of one-abutment at one-time protocol in healed posterior edentulism.
本系统评价和荟萃分析的目的是研究一次性方案中单基台在愈合后牙列缺损中的临床意义。
2022 年 11 月进行了在线检索，包括 PubMed、Cochrane 图书馆、Wiley Online Library 和 Google Scholar，此外还进行了手动检索。采用 Cochrane 协作工具评估所选文章的质量。通过荟萃分析估计边缘骨丧失（MBL）。此外，所有汇总分析均基于随机效应模型。进行亚组分析以评估不同变量的影响。
根据纳入标准，确定了 6 项试验，共纳入 446 颗牙种植体。荟萃分析显示，在 6 个月内，一次性方案中单基台的 MBL 平均减少 0.22mm，在 1 年随访时减少 0.30mm，有利于一次性方案中单基台。使用一次性方案中单基台等嵴放置时，MBL 显著丢失[6 个月：平均差值（MD）：-0.22mm；95%CI：-0.34 至 0.10mm，P=0.0004；12 个月：MD：-0.32mm；95%CI：-0.40 至 -0.24mm，P<0.00001），而在种植体亚嵴放置时，两组之间无差异（6 个月：MD：0.14mm；95%CI：-0.03 至 0.22mm；P=0.11；12 个月：MD：-0.12mm；95%CI：-0.32 至 0.08mm；P=0.23）。
种植体平台位置可能会极大地影响边缘骨水平。此外，在愈合后的牙列缺损中，一次性方案中单基台在等嵴放置的种植体中显示出更好的骨保留效果。
本研究强调了一次性方案在愈合后牙列缺损中单基台的重要临床应用。
