Berberoglu Berke, Koç Nagihan, Zengin Yagmur, Avcu Nihal
Adana Fatma Kemal Timucin Oral and Dental Health Hospital, Adana, Turkey.
Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Hacettepe University, Ankara, 06230, Turkey.
BMC Med Imaging. 2025 Sep 26;25(1):381. doi: 10.1186/s12880-025-01921-9.
The objective of this study was to assess the prevalence and morphometric characteristics of the genial tubercle (GT) in a Turkish population using cone-beam computed tomography (CBCT), by classifying the morphology of GTs and evaluating their width, height, and anatomical position, in relation to age and sex.
A total of 356 CBCT images were collected from the radiology archive at Hacettepe University Faculty of Dentistry, involving 228 female and 128 male patients aged 18 years and older. The GTs were identified and classified using multiplanar reconstruction sections. Measurements taken included the width (GT-w) and height (GT-h) of the GTs, the distance from the GTs to the apex of the mandibular central incisors (I-SGT), the distance to the mandibular base (IGT-M), and the mandibular anterior thickness (MT).
The overall prevalence of GTs was found to be 90.4%, with 9.6% of patients showing no GTs present. The most frequently observed type was GT-3 (33.1%), while the least common was GT-5 (9.6%). A statistically significant relationship was found between GT types and sex, as well as age groups (p = 0.007 and p = 0.017, respectively). Measurements indicated that the GT-w, GT-h, I-SGT, and MT values for males were greater than those for females.
The GTs exhibited significant variation in morphology according to age and sex, with GT-3 being the most common type and detectable GTs present in over 90% of individuals. Male participants demonstrated greater GT-w, GT-h, and MT values than females. The subdivision of Type 4 into 4 A and 4B provided a more detailed radiological characterization, which may serve as a useful reference in future anatomical and clinical research. CBCT images provide detailed information regarding the morphological assessment of GTs.
Not applicable.
本研究的目的是通过对颏结节（GT）的形态进行分类，并评估其宽度、高度和解剖位置与年龄和性别的关系，利用锥形束计算机断层扫描（CBCT）评估土耳其人群中颏结节的患病率和形态测量特征。
从哈杰泰佩大学牙科学院放射科档案中收集了356张CBCT图像，涉及228名18岁及以上的女性和128名男性患者。使用多平面重建切片识别并分类颏结节。测量包括颏结节的宽度（GT-w）和高度（GT-h）、颏结节到下颌中切牙根尖的距离（I-SGT）、到下颌骨底部的距离（IGT-M）以及下颌前部厚度（MT）。
发现颏结节的总体患病率为90.4%，9.6%的患者未发现颏结节。最常观察到的类型是GT-3（33.1%），最不常见的是GT-5（9.6%）。发现颏结节类型与性别以及年龄组之间存在统计学显著关系（分别为p = 0.007和p = 0.017）。测量表明，男性的GT-w、GT-h、I-SGT和MT值大于女性。
颏结节在形态上随年龄和性别表现出显著差异，GT-3是最常见的类型，超过90%的个体可检测到颏结节。男性参与者的GT-w、GT-h和MT值大于女性。将4型细分为4A和4B提供了更详细的放射学特征，这可能在未来的解剖学和临床研究中作为有用的参考。CBCT图像提供了有关颏结节形态评估的详细信息。
不适用。
