Department of Periodontics, Dental College of Georgia, Augusta University, Augusta GA, USA.
Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta GA, USA.
J Oral Implantol. 2023 Aug 1;49(4):444-455. doi: 10.1563/aaid-joi-D-22-00252.
The purpose of this study was to evaluate the current evidence on marginal bone-level changes (ΔMBL) around internal connection implants with fixed prostheses by jaw location over time. An electronic literature search for ΔMBL (change in marginal bone level) was conducted in 6 databases. The data from the included manuscripts were categorized by jaw sextant of the implants and duration of follow-up (<2 years, 2-5 years, and >5 years). Meta-analyses were performed on groups with at least 5 studies. A total of 1270 records were screened. Full-text review of 413 papers resulted in a total of 46 studies (representing 2259 patients with 4970 implants) included for quantitative synthesis and analysis. The ΔMBL was summarized at 2 time intervals with the following results: <2 years (anterior maxilla = 0.393 mm [95% confidence interval {CI}, 0.172, 0.613], posterior maxilla = 0.468 mm [95% CI, 0.288, 0.648], and posterior mandible 0.559 mm [95% CI, 0.397, 0.72]), 2 to 5 years (anterior maxilla = 0.683 mm [95% CI, 0.224, 1.142], posterior maxilla = 0.645 mm [95% CI, 0.42, 0.87], and posterior mandible 0.563 mm [95% CI, 0.278, 0.849]). There were insufficient studies in the anterior mandible and with follow-up data over 5 years for quantitative synthesis. Within the limitations of this study, location within the maxillary and mandibular jaws does not seem to influence ΔMBL around internal connection bone level implants with fixed restorations. Although there may be a tendency for greater initial remodeling in the posterior mandible followed by long-term stability, additional studies are needed to evaluate this further.
本研究旨在评估固定修复体中内连接种植体周围边缘骨水平变化（ΔMBL）随时间在颌骨位置的现有证据。在 6 个数据库中进行了关于 ΔMBL（边缘骨水平变化）的电子文献检索。根据植入物的颌骨六分法和随访时间（<2 年、2-5 年和>5 年）对纳入文献的数据进行了分类。对至少有 5 项研究的组进行了荟萃分析。共筛选出 1270 条记录。对 413 篇论文进行全文审查后，共有 46 项研究（代表 2259 名患者和 4970 个植入物）纳入定量综合分析。总结了以下两个时间间隔的 ΔMBL：<2 年（上颌前牙=0.393mm[95%置信区间{CI}，0.172，0.613]，上颌后牙=0.468mm[95%CI，0.288，0.648]，下颌后牙 0.559mm[95%CI，0.397，0.72]），2-5 年（上颌前牙=0.683mm[95%CI，0.224，1.142]，上颌后牙=0.645mm[95%CI，0.42，0.87]，下颌后牙 0.563mm[95%CI，0.278，0.849]）。在前颌骨和随访时间超过 5 年的下颌骨中，进行定量综合分析的研究数量不足。在本研究的限制范围内，上颌和下颌颌骨的位置似乎不会影响固定修复体中内连接骨水平种植体周围的 ΔMBL。虽然下颌后牙可能有更大的初始重塑趋势，随后是长期稳定，但需要进一步的研究来进一步评估这一点。
