PDF(Pubmed)
Abstract：
BACKGROUND: The human mandible plays a significant role in personal identification due to its unique morphological characteristics. The coronoid process, condyle, and sigmoid notch exhibit variations that can be utilized for forensic and anthropological purposes. This study aims to analyze the morphological diversities of these mandibular features in our ethnic group using cone beam computed tomography (CBCT) imaging.
METHODS: A retrospective analysis was conducted using 100 CBCT images obtained from the archives of the Department of Oral Medicine and Radiology. The images were captured using Carestream 9600 machines (Carestream Dental LLC, Atlanta, GA) with standard exposure parameters. Curved slicing screenshots were utilized for tracing the morphological variations of the coronoid process, condyle, and sigmoid notch.
RESULTS: Out of 100 CBCT images analyzed (corresponding to 200 sides), the shape-wise distribution of the coronoid process revealed that a triangular shape was most commonly observed in 59% (118) of cases. The condyle exhibited a predominantly round shape in 38.7% (77) of cases based on shape parameter-wise distribution. Similarly, the sigmoid notch displayed a round shape in 40.5% (81) of cases based on shape-wise distribution.
CONCLUSIONS: Personal identification using radiographs has gained significance in the current scenario due to its feasibility. Cone beam computed tomography imaging has become a reliable and accurate method for revealing hidden details in forensic odontology, especially when antemortem records are available. This research sheds light on the morphological variations of the mandibular coronoid process, condyle, and sigmoid notch within our ethnic cohort, enhancing personal identification practices. Further research encompassing larger sample sizes and diverse populations would enhance the applicability of these findings in forensic and anthropological contexts.
METHODS: A retrospective analysis was conducted using 100 CBCT images obtained from the archives of the Department of Oral Medicine and Radiology. The images were captured using Carestream 9600 machines (Carestream Dental LLC, Atlanta, GA) with standard exposure parameters. Curved slicing screenshots were utilized for tracing the morphological variations of the coronoid process, condyle, and sigmoid notch.
RESULTS: Out of 100 CBCT images analyzed (corresponding to 200 sides), the shape-wise distribution of the coronoid process revealed that a triangular shape was most commonly observed in 59% (118) of cases. The condyle exhibited a predominantly round shape in 38.7% (77) of cases based on shape parameter-wise distribution. Similarly, the sigmoid notch displayed a round shape in 40.5% (81) of cases based on shape-wise distribution.
CONCLUSIONS: Personal identification using radiographs has gained significance in the current scenario due to its feasibility. Cone beam computed tomography imaging has become a reliable and accurate method for revealing hidden details in forensic odontology, especially when antemortem records are available. This research sheds light on the morphological variations of the mandibular coronoid process, condyle, and sigmoid notch within our ethnic cohort, enhancing personal identification practices. Further research encompassing larger sample sizes and diverse populations would enhance the applicability of these findings in forensic and anthropological contexts.
摘要：
背景：人类下颌骨由于其独特的形态特征而在个人识别中起着重要作用。冠状突,髁,和乙状结肠凹口表现出可用于法医和人类学目的的变化。本研究旨在使用锥形束计算机断层扫描（CBCT）成像分析我们种族中这些下颌特征的形态多样性。
方法：使用从口腔医学和放射科的档案中获得的100张CBCT图像进行了回顾性分析。图像是使用Carestream9600机器捕获的(CarestreamDentalLLC，亚特兰大,GA)具有标准暴露参数。弯曲切片截图用于追踪冠状过程的形态变化，髁,和乙状缺口。
结果：在分析的100张CBCT图像中（对应于200面），冠状突的形状分布表明，在59％（118）的病例中最常见的是三角形。根据形状参数分布，在38.7％（77）的病例中，髁表现出主要为圆形。同样，根据形状分布，在40.5%(81)的病例中，乙状结肠切迹呈圆形。
结论：由于其可行性，使用射线照片进行个人识别在当前方案中具有重要意义。锥形束计算机断层扫描成像已成为一种可靠，准确的方法，用于揭示法医牙科学中的隐藏细节，尤其是有死前记录的时候.这项研究揭示了下颌冠状突的形态变化，髁,和我们种族群体中的乙状缺口，加强个人识别实践。包含更大样本量和不同人群的进一步研究将增强这些发现在法医和人类学背景下的适用性。
方法：使用从口腔医学和放射科的档案中获得的100张CBCT图像进行了回顾性分析。图像是使用Carestream9600机器捕获的(CarestreamDentalLLC，亚特兰大,GA)具有标准暴露参数。弯曲切片截图用于追踪冠状过程的形态变化，髁,和乙状缺口。
结果：在分析的100张CBCT图像中（对应于200面），冠状突的形状分布表明，在59％（118）的病例中最常见的是三角形。根据形状参数分布，在38.7％（77）的病例中，髁表现出主要为圆形。同样，根据形状分布，在40.5%(81)的病例中，乙状结肠切迹呈圆形。
结论：由于其可行性，使用射线照片进行个人识别在当前方案中具有重要意义。锥形束计算机断层扫描成像已成为一种可靠，准确的方法，用于揭示法医牙科学中的隐藏细节，尤其是有死前记录的时候.这项研究揭示了下颌冠状突的形态变化，髁,和我们种族群体中的乙状缺口，加强个人识别实践。包含更大样本量和不同人群的进一步研究将增强这些发现在法医和人类学背景下的适用性。
