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首页> 外文会议>International Seminar on Public Health Education >Radiographic Evaluation of Odontogenic Keratocyst: A 14-year Retrospective Study
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Radiographic Evaluation of Odontogenic Keratocyst: A 14-year Retrospective Study

机译：牙科遗传学角膜炎的射线照相评估：14年的回顾性研究

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Odontogenic keratocyst is regarded as a relatively common developmental odontogenic lesion representing 12% to 14% of all odontogenic cyst of the jaw. The lesion is of important interest for its potentially destructive behaviour and relatively high recurrence rate from 21.1% to as high as 35.4% in patients associated with Nevoid basal cell carcinoma syndrome. This study aim to determine the radiographic characteristic of odontogenic keratocyst (OKC) using conventional radiographs and cone beam computed tomography images. Patients histopathologically diagnosed as OKC from 2003 to 2016 by Oral and Maxillofacial Pathology Department were retrospectively reviewed. Radiographs of these cases from the archives of the Department of Oral and Maxillofacial Radiology, Faculty of Dentistry Mahidol University were retrieved. Assessment of the location, shape, border, cortication, locularity, relationship of lesion to embedded tooth, displacement of adjacent tooth, root resorption and bony expansion of the lesion were conducted. Radiographs of 89 patients with the mean age of 31.5 years old were analysed. A total of 100 OKCs were studied. The most common location was at the ramus of mandible followed by posterior maxilla. Most cases presented as a well-defined unilocular radiolucency with smooth and corticated border. The lesions were in association with embedded tooth in 42 lesions. The lesions might relate to an embedded tooth by surrounding an entire tooth, attached to the CEJ level or extending to part of root. Bony expansion and teeth displacement could be found and root resorption were not common. These features facilitate in guiding the clinicians to formulate the differential diagnosis.
机译：odontogenic角化膜被认为是相对常见的发育牙科病变，其颌骨所有幼儿囊肿的12％至14％。对与尾气基底细胞癌综合征相关的患者的潜在破坏性行为和相对高的复发率，对其潜在的破坏性行为和相对高的复发率为35.4％的损失是重要的。该研究旨在使用常规射线照相和锥梁计算断层摄影图像来确定偶联角膜囊肿（OKC）的射线照相特征。回顾性地审查了由口腔和颌面病理学部门2003至2016年组织病理学诊断为OKC的患者。从口腔和颌面放射部档案中获取这些案例的射线照相，牙买多大学的牙权大学牙买山脉大学。对嵌入牙齿的位置，形状，边界，皮质，位置，病变关系，相邻齿的位移，根部吸收和病变的膨胀的位置。分析了89名平均年龄31.5岁的患者的射线照片。研究了100个OKC。最常见的位置是下颌骨的Ramus，然后是后颌骨。大多数病例呈现为具有光滑且化的边框的明确界定的单檐射线。病变与42个病变中的嵌入牙齿相关联。这些病变可能与围绕整个牙齿的嵌入齿有关，附着在CEJ水平或延伸到根的一部分。可以找到骨膨胀和牙齿位移，根部吸收并不常见。这些特征有助于引导临床医生制定差异诊断。

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