(1)背景:在过去的十年中,立即放置牙种植体一直是人们非常感兴趣的主题。这里,在植入牙之前,有关颌骨解剖结构和骨厚度的信息对于提高手术的成功率和患者的安全性至关重要。这种方法的临床前提已经有争议地讨论。其中一个被广泛讨论的前提是颊骨厚度至少为1毫米。这项荟萃分析旨在系统地回顾健康患者的颊骨厚度(BBT)。因此,可以评估在日常实践中立即放置牙种植体的可行性。(2)方法:在电子数据库中进行搜索,以识别报告成人计算机断层扫描测量的BBT的文章。(3)结果:我们能够找到45项研究,包括4324名患者25,452颗分析牙齿。分析显示,上颌额牙槽的BBT为0.76±0.49mm,上颌后部为1.42±0.74mm。在下颌骨中,平均测量值与上颌骨相似(前:0.95±0.58mm;后:1.20±0.96mm)。在上颌额骨区域,74.4%和下颌额骨区域,61.2%的颌骨颊骨显示宽度<1毫米。(4)结论:在60%以上的病例中,上颌骨和下颌骨额叶区的BBT<1mm。这些解剖数据支持仔细的术前评估,规划颊部移植,以及立即植入的适应症的关键选择,特别是在上颌和下颌额叶和前磨牙区域。
(1) Background: Immediate dental implant placement has been a subject of great interest over the last decade. Here, information regarding the anatomy and bone thickness of the jaw prior to dental implant placement is crucial to increase the surgery\'s success and the patient\'s safety. The clinical premises for this approach have been controversially discussed. One of those heavily discussed premises is a buccal bone thickness of at least 1 mm thickness. This meta-analysis aims to systematically
review buccal bone thickness (BBT) in healthy patients. Thus, the feasibility of immediate dental implant placement in daily practice can be assessed. (2) Methods: A search in the electronic databases was performed to identify articles reporting on BBT that was measured by computed tomography in adults. (3) Results: We were able to find 45 studies, including 4324 patients with 25,452 analyzed teeth. The analysis showed a BBT at the alveolar crest of 0.76 ± 0.49 mm in the maxillary frontal and of 1.42 ± 0.74 mm in the maxillary posterior region. In the mandible, the average measured values were similar to those in the maxilla (front: 0.95 ± 0.58 mm; posterior: 1.20 ± 0.96 mm). In the maxillary frontal region 74.4% and in the mandibular frontal region 61.2% of the crestal buccal bones showed widths <1 mm. (4) Conclusions: In more than 60% of the cases, the BBT at the alveolar crest is <1 mm in maxillary and mandibular frontal regions. This anatomic data supports careful pre-surgical assessment, planning of a buccal graft, and critical selection of indication for immediate implant placement, especially in the maxillary and mandibular frontal and premolar region.