Kim Min-Jung, Jung Ui-Won, Kim Chang-Sung, Kim Kee-Deog, Choi Seong-Ho, Kim Chong-Kwan, Cho Kyoo-Sung
Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea.
J Periodontol. 2006 May;77(5):903-8. doi: 10.1902/jop.2006.050247.
The sinus lift technique may be difficult to perform if an aberrant sinus anatomy is encountered during surgical exposure, such as when a septum is present on the sinus floor. The objective of this study was to determine the prevalence, size, location, and morphology of maxillary sinus septa in the atrophic/edentulous and non-atrophic/dentate maxillary segments.
The sample population consisted of 100 patients (41 women and 59 men, with a mean age of 50 years, ranging between 19 and 87 years) for whom treatment was being planned for implant-supported restorations. Reformatted computerized tomograms (CT) from 200 sinuses were analyzed using imaging software.
The prevalence of one or more septa per sinus was found to be 26.5% (53/200), 31.76% (27/85), and 22.61% (26/115) in the overall study population and the atrophic/edentulous and the non-atrophic/dentate maxillary segments, respectively. In the analysis of the anatomic location of the septa within the sinus, it was revealed that 15 (25.4%) were located in the anterior region, 30 (50.8%) in the middle region, and 14 (23.7%) in the posterior region. The measured heights of the septa varied among the different areas. The mean heights of the septa were 1.63 +/- 2.44, 3.55 +/- 2.58, and 5.46 +/- 3.09 mm in the lateral, middle, and medial areas, respectively.
It can be inferred that there is a wide anatomical variation in the prevalence, size, location, and morphology of maxillary sinus septa, irrespective of the degree of atrophy. Therefore, to prevent the likelihood of complications arising during sinus augmentation procedures, a thorough and extensive understanding of the anatomic structures inherent to the maxillary sinus is indispensable.
如果在手术暴露过程中遇到异常的鼻窦解剖结构，例如当鼻窦底部存在隔膜时，鼻窦提升技术可能难以实施。本研究的目的是确定萎缩/无牙和非萎缩/有牙上颌节段中上颌窦隔膜的患病率、大小、位置和形态。
样本人群包括100名患者（41名女性和59名男性，平均年龄50岁，年龄范围在19至87岁之间），他们正计划接受种植体支持修复治疗。使用成像软件分析了来自200个鼻窦的重新格式化计算机断层扫描（CT）。
在整个研究人群以及萎缩/无牙和非萎缩/有牙上颌节段中，每个鼻窦存在一个或多个隔膜的患病率分别为26.5%（53/200）、31.76%（27/85）和22.61%（26/115）。在分析鼻窦内隔膜的解剖位置时发现，15个（25.4%）位于前部区域，30个（50.8%）位于中部区域，14个（23.7%）位于后部区域。隔膜的测量高度在不同区域有所不同。隔膜的平均高度在外侧、中部和内侧区域分别为1.63±2.44、3.55±2.58和5.46±3.09毫米。
可以推断，无论萎缩程度如何，上颌窦隔膜的患病率、大小、位置和形态在解剖学上存在广泛差异。因此，为防止鼻窦增高手术期间出现并发症的可能性，对上颌窦固有解剖结构进行全面而广泛的了解是必不可少的。
