Asha K R, Thejeshwari H G, Jagadish Archana Belavadi, Alghamdi Mansour A, Vidya H K, Muguregowda Honnegowda Thittamaranahalli
Department of Anatomy, Siddaganga Medical College and Research Institute, Tumakuru, Karnataka, India.
Department of Anatomy, College of Medicine, King Khalid University, Abha, Saudi Arabia.
Ann Maxillofac Surg. 2023 Jan-Jun;13(1):9-12. doi: 10.4103/ams.ams_19_23. Epub 2023 Jun 30.
The variable relation and clinical significance of mandibular foramen (MF) and with inferior alveolar neurovascular bundle (IANB) is important for dental surgeons. Knowing the landmarks on the ramus of the mandible is of paramount importance to perform the surgery without causing damage to the neurovascular bundle.
This study was conducted on 85 dry adult mandibles of unknown sex and age. The distances were measured from the anatomical reference points (anti-, and MF) using digital callipers.
The distance from the anti- to the anterior border of the ramus (A) was significantly longer on the right side (14.91 mm) than on the left side (14.5 mm). There was a significant difference in mean distances between the anti- and MF of both the sides ( ≤ 0.005). No significant difference was noted in the distances between the and the Anti-, observed for the posterior (B, = 0.75) and the inferior margin of the mandible (D, = 0.54). However we found correlation of vertical distances of anti-Lingula with Lingula and MF exhibited moderate positive correlation.
The IANB is prone to damage during mandibular surgery. Using anti- alone as a reference point is not guaranteed, but it is still an important anatomical landmark for the surgeon to operate.
下颌孔（MF）与下牙槽神经血管束（IANB）之间的可变关系及临床意义对口腔外科医生而言至关重要。了解下颌支上的解剖标志对于在不损伤神经血管束的情况下进行手术极为重要。
本研究对85具性别和年龄未知的成年干燥下颌骨进行。使用数字卡尺从解剖参考点（颏孔、舌骨和下颌孔）测量距离。
从颏孔到下颌支前缘（A）的距离右侧（14.91毫米）显著长于左侧（14.5毫米）。两侧颏孔与下颌孔之间的平均距离存在显著差异（P≤0.005）。在舌骨与颏孔之间的距离方面，观察到下颌支后缘（B，P = 0.75）和下颌下缘（D，P = 0.54）均无显著差异。然而，我们发现颏孔-舌骨垂直距离与舌骨和下颌孔呈现中度正相关。
在下颌手术中，下牙槽神经血管束容易受损。仅将颏孔作为参考点并不保险，但它仍是外科医生手术时的一个重要解剖标志。
