Cajahuanca Igreda Heddiksson Mario, Llaguno Rubio Jhoana Mercedes, Medina Ocampo Paola Elena
División de Ortodoncia, Universidad FAIPE. Cuiabá, Brasil.
División de Radiología Bucal y Maxilofacial, Universidad Científica del Sur. Lima, Perú.
Rev Cient Odontol (Lima). 2021 Mar 11;9(1):e046. doi: 10.21142/2523-2754-0901-2021-046. eCollection 2021 Jan-Mar.
The objective of this study was to provide an updated review of the literature on the importance of the use of cone beam computed tomography (CBCT) in the recognition of the trajectory and variants of the mandibular canal (MCV).CBCT allows obtaining high quality images and visualization with an accuracy of approximately 94%, compared to 53% with periapical intraoral radiography (RIP) and 17% with panoramic extraoral radiography (REP), making CBCT an important diagnostic tool.The incidences of MCV in CBCT studies were between 1.3% and 69%, with differences between patients of different ethnic origins and within the same ethnic population, and in the types and configurations of MCV within each ethnic group. The studies available in the literature provide a histological description of the content of MCV. The presence of nerve and artery bundles of different calibers suggests that patients present clinical symptoms only if the neurovascular bundle reaches a certain size and number of fascicles. This review provides a description of the different classifications available and updated with CBCT.
本研究的目的是对有关锥形束计算机断层扫描（CBCT）在识别下颌管轨迹和变异（MCV）中的重要性的文献进行更新综述。与根尖口内放射摄影（RIP）的53%和全景口外放射摄影（REP）的17%相比，CBCT能够获得高质量图像并以约94%的准确率进行可视化，这使得CBCT成为一种重要的诊断工具。CBCT研究中MCV的发生率在1.3%至69%之间，不同种族患者之间以及同一种族人群内部存在差异，并且在每个种族群体中MCV的类型和形态也存在差异。文献中的现有研究提供了MCV内容物的组织学描述。不同管径的神经和动脉束的存在表明，只有当神经血管束达到一定大小和束数量时，患者才会出现临床症状。本综述提供了可用的不同分类的描述，并结合CBCT进行了更新。
