Huang Jin-Cheng, Zhao Hua-Qiang, Li Guo-Ju
Department of Radiology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration. Jinan 250012, Shandong Province, China. E-mail:
Shanghai Kou Qiang Yi Xue. 2022 Aug;31(4):439-444.
To guide clinical decision-making more efficiently via collecting and analyzing the imaging data of patients with Stafne bone cavity(SBC).
Six patients with SBC were retrospectively reviewed in Stomatological Hospital of Shandong University. By assessing cone-beam CT (CBCT) data, age, sex, complaint, cavity location, diameter at three dimension, maximal cross-sectional area of multi-planar reconstruction planes, content gray scale, morphological classification and its relationship with mandibular canal were recorded respectively.
A total of 6 cases were inadvertently found on CBCT, with no symptoms. The locations of SBC were between mandibular molar region and mandibular angle, inferior border of mandible and mandibular canal, mostly at lingual side. Three were on the left and three were on the right. The bone cavity was elliptic and its long axis was consistent with the long axis of the mandible, with an average long axis diameter of (16.43±4.54) mm, horizontal axis diameter of (6.91±1.48) mm, vertical axis diameter of (10.24±2.10) mm. According to the multi-planar reconstruction planes readings, the maximal cross-sectional area of the bone cavity was (91.93±25.52) mm, the maximal coronal area was (57.26±23.23) mm, and the maximal sagittal area was (127.80±51.22) mm. In view of the classification in the relationship between SBC marginal line and buccal cortical bone, there were 2 cases of type I cavity, 3 cases of type II cavity and 1 case of type III cavity. The connection between the bone cavity and the surrounding anatomical structure was classified into 3 conditions: covering penetration, adjacency and separation on the basis of the relative position between the cavity boundary with the mandibular inferior margin and the mandibular canal in sagittal plane. In addition, the content type could be primarily identified depending on estimation of corrected grey scale in the center of bone cavity.
CBCT can make an intuitive and clear diagnosis of Stafne bone cavity, which brings great significance into the early clinical decision-making, thus not only avoiding unnecessary surgery, reducing the waste of additional medical resources, but also decreasing the physical and mental trauma of patients.
通过收集和分析斯滕内骨腔（SBC）患者的影像学数据，更有效地指导临床决策。
对山东大学口腔医院6例SBC患者进行回顾性研究。通过评估锥形束CT（CBCT）数据，分别记录年龄、性别、主诉、腔隙位置、三维直径、多平面重建平面的最大横截面积、内容物灰度、形态学分类及其与下颌管的关系。
CBCT检查时无意中发现6例，均无临床症状。SBC位于下颌磨牙区与下颌角之间、下颌骨下缘与下颌管之间，多位于舌侧。左侧3例，右侧3例。骨腔呈椭圆形，长轴与下颌骨长轴一致，平均长轴直径为（16.43±4.54）mm，横轴直径为（6.91±1.48）mm，纵轴直径为（10.24±2.10）mm。根据多平面重建平面测量结果，骨腔最大横截面积为（91.93±25.52）mm，最大冠状面积为（57.26±23.23）mm，最大矢状面积为（127.80±51.22）mm。根据SBC边缘线与颊侧皮质骨的关系分类，Ⅰ型腔2例，Ⅱ型腔3例，Ⅲ型腔1例。根据矢状面骨腔边界与下颌下缘和下颌管的相对位置，将骨腔与周围解剖结构的关系分为3种情况：覆盖穿透、相邻和分离。此外，根据骨腔中心校正灰度估计，可初步确定内容物类型。
CBCT能直观、清晰地诊断斯滕内骨腔，对早期临床决策具有重要意义，不仅可避免不必要的手术，减少额外医疗资源的浪费，还可减轻患者的身心创伤。
