Madiraju Guna Shekhar, Mohan Rohini
Department of Preventive Dental Sciences, College of Dentistry, King Faisal University, Al Ahsa 31982, Saudi Arabia.
Port Talbot Research Centre, Community Dental Services, Swansea Bay University Health Board, Port Talbot SA12 7BJ, UK.
Diagnostics (Basel). 2023 Jan 23;13(3):419. doi: 10.3390/diagnostics13030419.
Adequate knowledge of the anatomy of the medial aspect of the mandibular ramus is essential in order to prevent inferior alveolar nerve anesthetic failure and nerve injuries associated with mandibular ramal surgical procedures. The purpose of this study was to assess the morphology of the lingula and analyze the correlation of presence probability between the lingula and antilingula using cone-beam computed tomography (CBCT). Three-dimensional images reconstructed from mandibular CBCT images of 125 Saudi individuals (250 sides), aged 16-36 years, were retrospectively evaluated for distribution in the shape of the lingulae. Additionally, the presence probability of the lingula and antilingula was assessed with respect to gender and the mandible (unilateral and bilateral), and correlation between the variables was analyzed. A nodular shape of the lingula was most commonly found (37.6%) followed by a triangular shape (30%). No significant differences were observed between the genders with regard to the presence of the lingula ( = 0.108) and antilingula ( = 0.530). Gender was non-significantly correlated with the presence of the lingula and antilingula, whilst the presence of lingula showed a significant but weak correlation with that of the antilingula (r = 0.221; = 0.000). The present study provides information regarding morphological variations of the mandibular lingula in the Saudi population. The presence of the lingula was unassociated with that of the antilingula and hence consideration of the antilingula as the absolute landmark for mandibular ramus surgical procedures seems insufficient.
为防止下牙槽神经麻醉失败以及与下颌支外科手术相关的神经损伤，充分了解下颌支内侧的解剖结构至关重要。本研究的目的是使用锥形束计算机断层扫描（CBCT）评估舌骨的形态，并分析舌骨与反舌骨出现概率之间的相关性。回顾性评估了125名年龄在16 - 36岁的沙特个体（250侧）下颌CBCT图像重建的三维图像，以观察舌骨的形状分布。此外，还评估了舌骨和反舌骨在性别以及下颌骨（单侧和双侧）方面的出现概率，并分析了变量之间的相关性。最常见的舌骨形状为结节状（37.6%），其次是三角形（30%）。在舌骨（P = 0.108）和反舌骨（P = 0.530）的出现方面，未观察到性别之间存在显著差异。性别与舌骨和反舌骨的出现无显著相关性，而舌骨的出现与反舌骨的出现呈显著但较弱的相关性（r = 0.221；P = 0.000）。本研究提供了沙特人群下颌舌骨形态变异的相关信息。舌骨的出现与反舌骨的出现无关，因此将反舌骨视为下颌支外科手术的绝对标志似乎并不充分。
