Department of Surgery, Stomatology, Pathology, and Radiology, Bauru Dental School, University of São Paulo, Bauru, Brazil.
Int J Oral Maxillofac Surg. 2019 Oct;48(10):1340-1347. doi: 10.1016/j.ijom.2019.04.003. Epub 2019 May 2.
Panoramic radiography is the standard imaging method for preoperative assessment before lower third molar removal. However, oral surgeons have been using cone beam computed tomography (CBCT) as an additional tool to assess detailed preoperative data, as it provides cross-sectional images. The aim of this systematic review was to determine whether the use of CBCT and the additional information provided modifies the preoperative assessment of lower third molar removal when compared to panoramic radiography and consequently results in a different surgical approach. A search of the PubMed, Embase, Web of Science, Science Direct, and Scopus electronic databases was performed on 30 June 2018, which retrieved 196 records without duplicates. The grey literature was also searched to include any other paper that might meet the eligibility criteria, which resulted in an additional five records. Among these papers, five met all of the eligibility criteria. These five studies included a total of 289 individuals and a total sample of 311 teeth. The findings showed that three-dimensional imaging does not change the surgical approach when compared to panoramic radiography; however it is considered a useful imaging method to understand the relationship between the lower third molars and the mandibular canal.
全景片是下颌第三磨牙拔除术前评估的标准影像学方法。然而，口腔外科医生已经将锥形束 CT（CBCT）作为一种额外的工具来评估详细的术前数据，因为它提供了横断面图像。本系统评价的目的是确定与全景片相比，使用 CBCT 和提供的附加信息是否会改变下颌第三磨牙拔除术的术前评估，从而导致不同的手术方法。于 2018 年 6 月 30 日对 PubMed、Embase、Web of Science、Science Direct 和 Scopus 电子数据库进行了检索，未重复检索到 196 条记录。还对灰色文献进行了检索，以纳入任何可能符合入选标准的其他论文，这又导致了另外 5 条记录。在这些论文中，有 5 篇完全符合所有入选标准。这 5 项研究共纳入 289 人，共 311 颗牙。研究结果表明，与全景片相比，三维成像不会改变手术方法；然而，它被认为是一种有用的成像方法，可以了解下颌第三磨牙与下颌管之间的关系。
