Oral and Maxillofacial Radiology, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.
Department of Diagnostic Radiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Clin Oral Investig. 2018 Apr;22(3):1175-1183. doi: 10.1007/s00784-017-2206-z. Epub 2017 Sep 17.
The purpose of the present study was to evaluate the frequency, locations, and dimensions of mucous retention cysts of the maxillary sinus and analyze potential associated dental pathology.
A total of 156 cone beam computed tomography (CBCT) scans were included in the analysis, resulting in an evaluation of 310 maxillary sinuses. The presence of mucous retention cysts (MRC) manifesting as dome-shaped radiopacities in the sinus was diagnosed. Their locations were recorded, and dimensions (mm) were measured in coronal and sagittal/axial slices. The patients were grouped into (a) patients/sinuses with MRCs (test), and (b) patients/sinuses with healthy or any other changes (control) for further comparison and evaluation.
There were 40 sinuses (12.9%) with a presence of a total of 56 MRCs. The mean age of involved patients was 29.0 years. The analysis showed that gender, age, sinus side, status of dentition, endodontic status, and periodontal status did not have a significant influence on the presence of MRCs when compared between test and control groups. Age and endodontic status exhibited a significant association with cyst location.
Most of the sinuses analyzed (79.5%) did not present any MRC, and only 28.6% of the cysts diagnosed were found on the floor of the maxillary sinus. The mean dimension of the MRCs measured 6.28 ± 2.93 mm. No influencing factors on the presence or absence of MRCs were found in the present study.
Most MRCs were not located on the floor of maxillary sinus. Future studies should assess their impact on surgical interventions in the sinus.
本研究旨在评估上颌窦黏液潴留囊肿的频率、位置和大小，并分析潜在的相关牙科病变。
共纳入 156 例锥形束 CT（CBCT）扫描，对 310 个上颌窦进行评估。诊断为窦内呈穹顶状致密影的黏液潴留囊肿（MRC）。记录其位置，并在冠状和矢状/轴位切片上测量其大小（mm）。将患者分为（a）有 MRC 的患者/窦（试验组）和（b）有健康或任何其他改变的患者/窦（对照组），以便进一步比较和评估。
有 40 个窦（12.9%）存在总共 56 个 MRC。涉及患者的平均年龄为 29.0 岁。分析显示，当比较试验组和对照组时，性别、年龄、窦侧、牙列状况、牙髓状况和牙周状况对 MRC 的存在没有显著影响。年龄和牙髓状况与囊肿位置有显著相关性。
分析的大多数窦（79.5%）没有出现任何 MRC，仅 28.6%的诊断囊肿位于上颌窦底。测量的 MRC 平均尺寸为 6.28±2.93mm。本研究未发现 MRC 存在或不存在的影响因素。
大多数 MRC 不在上颌窦底。未来的研究应该评估它们对上颌窦手术干预的影响。
