Hungerbühler A, Rostetter C, Lübbers H-T, Rücker M, Stadlinger B
Clinic of Cranio-Maxillofacial and Oral Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland.
Clinic of Cranio-Maxillofacial and Oral Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland.
Int J Oral Maxillofac Surg. 2019 Mar;48(3):382-387. doi: 10.1016/j.ijom.2018.09.009. Epub 2018 Oct 22.
Proper implant positioning in the posterior region of the edentulous maxilla commonly requires sinus floor elevation. Maxillary sinus septa increase the risk of membrane perforation during sinus floor elevation. The purpose of this retrospective, cone beam computed tomography (CBCT)-based study was to examine the frequency, number, location, and orientation of antral septa in the maxillary sinus. Further, possible associated factors were assessed. Measurements were performed on CBCT scans of 301 patients (602 sinuses). The data were analysed statistically with respect to patient age, sex, and dentition type. One or more septa were detected in 117 patients (38.9%). A total of 188 septa were found in the 602 sinuses (31.2%). Septa were most often coronally oriented (53.2%), followed by sagittal (24.5%) and transverse (22.3%) orientations. Septa were most often found in the region of the first and second molar (37.2%), followed by the posterior region of the third molar (33.0%) and the anterior region of the premolars and canines (29.8%). A significant association was found between edentulism and the presence of septa. For edentulous patients, the septa were most often transversally oriented. Maxillary sinus septa are encountered in every third patient. This may have an influence on the performance of sinus floor elevation.
在上颌无牙区正确植入种植体通常需要进行上颌窦底提升术。上颌窦隔增加了上颌窦底提升术中膜穿孔的风险。本项基于锥形束计算机断层扫描（CBCT）的回顾性研究旨在检查上颌窦中隔的频率、数量、位置和方向。此外，还评估了可能的相关因素。对301例患者（602个鼻窦）的CBCT扫描进行测量。对患者年龄、性别和牙列类型的数据进行了统计分析。在117例患者（38.9%）中检测到一个或多个隔。在602个鼻窦中共发现188个隔（31.2%）。隔最常见的方向是冠状位（53.2%），其次是矢状位（24.5%）和横位（22.3%）。隔最常出现在第一和第二磨牙区域（37.2%），其次是第三磨牙后部区域（33.0%）以及前磨牙和尖牙前部区域（29.8%）。发现无牙状态与隔的存在之间存在显著关联。对于无牙患者，隔最常为横向。每三名患者中就有一名出现上颌窦隔。这可能会对上颌窦底提升术的操作产生影响。
