Borgonovo Andrea Enrico, Taschieri Silvio, Vavassori Virna, Re Dino, Francetti Luca, Corbella Stefano
Department of Oral Rehabilitation, Istituto Stomatologico Italiano, Milan, Italy.
Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy.
J Investig Clin Dent. 2017 Nov;8(4). doi: 10.1111/jicd.12260. Epub 2017 Feb 2.
The aim of the present study was to explore, through tridimensional reconstructions of cone-beam computed tomography (CBCT) scans, the presence and the characteristics of mandibular accessory canals.
For each included participant, the presence of accessory canals was recorded. The diameter of the canal, as well as the distance between the canal walls and the walls of the mandibular bone (lingual, buccal, cranial and caudal), were measured and recorded.
Mandibular accessory canals could be found in 8.8% of participants. Retromolar canals were the most frequently found accessory mandibular canals.
Accessory mandibular canals were found in a relatively high number of participants through the examination of CBCT scans and tridimensional reconstruction. The presence of such structures should be considered cautiously when planning and performing surgical interventions in mandibular area.
本研究的目的是通过锥形束计算机断层扫描（CBCT）扫描的三维重建，探索下颌副根管的存在情况及其特征。
对每位纳入研究的参与者记录副根管的存在情况。测量并记录根管直径以及根管壁与下颌骨壁（舌侧、颊侧、颅侧和尾侧）之间的距离。
8.8%的参与者中可发现下颌副根管。磨牙后根管是最常见的下颌副根管。
通过CBCT扫描检查和三维重建，在相当数量的参与者中发现了下颌副根管。在计划和实施下颌区域的手术干预时，应谨慎考虑这些结构的存在。
