Verma Rajat, Dua Nisha, Gupta Rajesh, Jain Mayank, Gupta Monika
Oral Medicine and Radiology, Swami Devi Dyal Hospital and Dental College, Panchkula, IND.
Oral and Maxillofacial Radiology, Swami Devi Dyal Hospital and Dental College, Panchkula, IND.
Cureus. 2024 Aug 29;16(8):e68157. doi: 10.7759/cureus.68157. eCollection 2024 Aug.
Maxillary sinus septa, which are bony structures dividing the sinus cavity, can pose challenges during sinus lift or implant surgeries by potentially causing perforation of the Schneiderian membrane. This study aimed to estimate the prevalence, height, location, orientation, and risk of perforation of the maxillary sinus septa using cone beam computed tomography (CBCT).
This retrospective, cross-sectional study utilized CBCT (NewTom CBCT machine, of which the scan parameters were 90 KvP, 8 mAs, and 14 s exposure with a field of view (FOV) of 8×8 cm and a 0.2 mm voxel size) images of 300 maxillary sinuses from patients aged >18 years, obtained from Swami Devi Dyal Hospital and Dental College in Panchkula, India. Scans were analyzed for the presence, height, location, orientation, and risk of septal perforation. The data were categorized based on age, sex, and dentition status. Statistical analyses were performed to assess the prevalence, configuration, and risk factors.
The prevalence of maxillary sinus septa was 21.33%, with the majority showing a single septum (90.63%). Septa were predominantly found in the middle region (48.44%), with bucco-palatal orientation (93.75%) being more common than anteroposterior. The mean septa height was 6.16 mm. The perforation was classified as moderate (48.4%), low (46.8%), or high (4.6%). Class III septa were associated with the highest risk of perforation.
This study highlights a significant prevalence of maxillary sinus septa with variations in height, orientation, and location. The risk of perforation varies with the septa configuration and orientation. CBCT is essential for identifying these anatomical features to minimize surgical complications and to guide preoperative planning.
上颌窦隔是分隔窦腔的骨性结构，在鼻窦提升或种植手术过程中，可能会导致施奈德膜穿孔，从而带来挑战。本研究旨在使用锥形束计算机断层扫描（CBCT）评估上颌窦隔的发生率、高度、位置、方向及穿孔风险。
这项回顾性横断面研究利用了来自印度潘切库拉市斯瓦米·德维·戴尔医院和牙科学院的300例年龄大于18岁患者的上颌窦CBCT图像（NewTom CBCT机，扫描参数为90千伏峰值、8毫安秒、14秒曝光，视野为8×8厘米，体素大小为0.2毫米）。对扫描图像分析上颌窦隔的存在情况、高度、位置、方向及穿孔风险。数据根据年龄、性别和牙列状况进行分类。进行统计分析以评估发生率、形态及风险因素。
上颌窦隔的发生率为21.33%，大多数为单个隔（90.63%）。隔主要位于中部区域（48.44%），颊腭向（93.75%）比前后向更常见。隔的平均高度为6.16毫米。穿孔分为中度（48.4%）、低度（46.8%）或高度（4.6%）。III类隔与最高穿孔风险相关。
本研究突出了上颌窦隔的显著发生率，其高度、方向和位置存在差异。穿孔风险因隔的形态和方向而异。CBCT对于识别这些解剖特征至关重要，可将手术并发症降至最低并指导术前规划。
