, Consultant Oral and Maxillofacial Radiologist, Aurangabad, Maharashtra, India.
Department of Oral Medicine and Radiology, CSMSS Dental College and Hospital, Aurangabad, Maharashtra, India.
Biomed Res Int. 2022 Feb 14;2022:5542030. doi: 10.1155/2022/5542030. eCollection 2022.
The objectives of the study include the following: (i) to assess the presence of accessory canals and foramina in the body of the mandible using cone-beam computed tomography (CBCT), (ii) to evaluate the location, number, diameter, and length of accessory canals in the body of the mandible, and (iii) to propose a new classification for mandibular accessory canals based on the location.
A total of 50 (25 males and 25 females) CBCT scans were analyzed in three anatomical planes and three-dimensional (3D) reconstructions for the exact number, location, diameter, and accessory length canals and accessory foramina in the body of the mandible. The statistical analysis used was an independent -test.
Out of 50 CBCT scans, a total of 243 accessory canals and 245 accessory foramina were found. About 53% of accessory canals and foramina were found in males, while 47% were observed in females; 89% were evident in the anterior region, and only 11% were in the posterior region. The majority (64%) of the medial lingual canals had a diameter greater than or equal to 1 mm, while only 32% of accessory canals had a diameter of less than 1 mm ( < 0.05). The mean length of median lingual canals in females was 1.2910 ± 0.2582 mm and 2.6438 ± 0.5288 mm in male subjects. Mandibular accessory canals are classified broadly into anterior and posterior accessory canals, which have further subdivisions.
CBCT plays a dynamic role in determining the mandible location of various neurovascular structures, including accessory canals and foramina. Female subjects were observed with more accessory canals and foramina and more common in the anterior region than in the posterior region.
本研究的目的包括：（i）使用锥形束 CT（CBCT）评估下颌体中副根管和副孔的存在情况，（ii）评估下颌体中副根管的位置、数量、直径和长度，以及（iii）根据位置提出下颌副根管的新分类。
在三个解剖平面和三维（3D）重建中对 50 例（25 名男性和 25 名女性）CBCT 扫描进行分析，以确定下颌体中确切的副根管数量、位置、直径和副根管长度以及副孔。使用的统计分析是独立样本 t 检验。
在 50 例 CBCT 扫描中，共发现 243 个副根管和 245 个副孔。约 53%的副根管和副孔见于男性，47%见于女性；89%位于前区，仅 11%位于后区。大多数（64%）的内侧舌侧根管直径大于或等于 1mm，而只有 32%的副根管直径小于 1mm（<0.05）。女性的中舌侧根管平均长度为 1.2910±0.2582mm，男性为 2.6438±0.5288mm。下颌副根管广泛分为前副根管和后副根管，它们有进一步的细分。
CBCT 在确定包括副根管和副孔在内的各种下颌神经血管结构的位置方面发挥着重要作用。女性副根管和副孔的数量比男性多，且更常见于前区而不是后区。
