Kurt Hakan, Orhan Kaan, Aksoy Secil, Kursun Sebnem, Akbulut Nihat, Bilecenoglu Burak
Department of Dentomaxillofacial Radiology, Ankara University Faculty of Dentistry, Ankara, Turkey.
Department of Dentomaxillofacial Radiology, Ankara University Faculty of Dentistry, Ankara, Turkey; Department of Dentomaxillofacial Radiology, Near East University Faculty of Dentistry, Mersin, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2014 Mar;117(3):e280-8. doi: 10.1016/j.oooo.2014.01.011. Epub 2014 Jan 16.
This study aimed to assess the superior semicircular canal (SSCC) morphology and to determine whether superior semicircular canal dehiscence (SSCD) correlates with temporomandibular joint (TMJ) symptoms.
Clinical data and cone beam computed tomography (CBCT) scans of 175 patients were retrospectively examined by 2 observers. Distribution and thickness measurements of the different types of bone cover of the SSCC were performed.
Five radiologic SSCC patterns were identified from CBCT data: 147 cases (42%) were defined as normal (0.6-1.7 mm thickness); 62 cases (17.71%) had a papyraceous pattern (<0.5 mm); 77 cases (22%) showed a thick pattern (>1.8 mm); and 42 cases (12%) had a pneumatized pattern. Observer 1 and 2 diagnosed SSCD in 22 of 350 (6.28%) temporal bones individually and had no discordances between the 2 reviews. All patients with SSCD were identified as having TMJ signs and symptoms (P < .05).
Maxillofacial radiologists should be informed about these structures, which can be helpful for the interpretation of CBCT scans.
本研究旨在评估上半规管（SSCC）的形态，并确定上半规管裂（SSCD）是否与颞下颌关节（TMJ）症状相关。
两名观察者对175例患者的临床资料和锥形束计算机断层扫描（CBCT）图像进行回顾性分析。对上半规管不同类型骨覆盖的分布和厚度进行测量。
从CBCT数据中识别出5种放射学上半规管模式：147例（42%）定义为正常（厚度0.6 - 1.7mm）；62例（17.71%）为纸样模式（<0.5mm）；77例（22%）为厚模式（>1.8mm）；42例（12%）为气化模式。观察者1和观察者2分别在350侧颞骨中的22侧（6.28%）诊断出SSCD，两次评估之间无差异。所有患有SSCD的患者均被发现有颞下颌关节体征和症状（P < .05）。
颌面放射科医生应了解这些结构，这有助于解读CBCT扫描图像。
