Koymen Ramazan, Gocmen-Mas Nuket, Karacayli Umit, Ortakoglu Kerim, Ozen Tuncer, Yazici Ayse Canan
Department of Oral and Maxillofacial Surgery, Gulhane Medical Academy, Ankara, Turkey.
Clin Anat. 2009 Jul;22(5):563-70. doi: 10.1002/ca.20813.
The anatomical structure of the maxillary sinus is fundamental to maxillofacial surgery. The presence of septa, located at the inner surface of the maxillary sinus, increases the risk of sinus membrane perforation during sinus elevation for dental implant surgery. The aim of this study was to evaluate the anatomy of maxillary sinus septa.Data in this study was obtained from a total of 205 cases. One hundred and seventy-seven patients were partially edentulous (PE) whereas 28 patients had no teeth. Dental computerized tomography (dental CT) was used in the assessment of 410 sinus segments (205 left and 205 right segments). The prevalence of sinus segments with septa was found to be 145/410. Septa were detected in 91 of the 177 PE cases. There were a total of 26 septa in 18 of the 28 completely edentulous (CE) cases. A total of 165 septa were detected in these segments. The prevalence of septa was 46.4% (26/56) in the CE, and 39.2% (139/354) in the PE segments. Thirty septa were found in the anterior, 110 in the middle and 25 in the posterior region. All detected septa were located mediolateral direction. Their relative position: lateral, middle or medial were also noted. The height measurements of the septa varied amongst the different positions. In view of the fact that septa of various heights and courses can develop in all parts of the maxillary sinus, timely and adequate assessment of the inner aspect of the maxillary sinus is essential to avoid complications during sinus augmentation procedures.
上颌窦的解剖结构是颌面外科手术的基础。位于上颌窦内表面的间隔的存在增加了牙种植手术中上颌窦提升时窦膜穿孔的风险。本研究的目的是评估上颌窦间隔的解剖结构。本研究的数据共来自205例病例。177例患者为部分牙列缺失（PE），而28例患者无牙。牙科计算机断层扫描（牙科CT）用于评估410个鼻窦节段（205个左侧节段和205个右侧节段）。发现有间隔的鼻窦节段的患病率为145/410。在177例PE病例中的91例中检测到间隔。28例完全牙列缺失（CE）病例中的18例共有26个间隔。在这些节段中共检测到165个间隔。CE节段中间隔的患病率为46.4%（26/56），PE节段中为39.2%（139/354）。在前部区域发现30个间隔，中部区域110个，后部区域25个。所有检测到的间隔均位于中外侧方向。还记录了它们的相对位置：外侧、中间或内侧。间隔的高度测量在不同位置有所不同。鉴于上颌窦的所有部位都可能出现各种高度和走向的间隔，对上颌窦内部进行及时、充分的评估对于避免鼻窦增大手术中的并发症至关重要。
