Kursoglu Pinar, Capa Nuray
Yeditepe University, Faculty of Dentistry, Department of Prosthodontics, Turkey.
Cranio. 2006 Jul;24(3):213-6. doi: 10.1179/crn.2006.034.
There are multiple factors in cases of mandibular hypomobility. One of these factors is elongated coronoid process. Two cases are presented to illustrate elongated coronoid process leading to mandibular hypomobility to help prevent misdiagnosis by clinicians. Coronoid process elongation is a rare condition. Both cases reported here had pulpitis on the teeth, however endodontic treatment could not be performed due to the restricted mouth opening in both cases. There were clinical findings of restricted range of motion, especially during protrusive movements. The restrictive movements did not cause pain for either patient, and the patients were not aware of their restricted mouth opening. Panoromic radiographs were taken and evaluated. The radiographs showed elongated coronoid process bilaterally. Three-dimensional computerized tomography was taken in one case only, due to the patient's financial restrictions. In cases of restricted mandibular opening, elongated coronoid process must be considered when diagnosing the cause.
下颌运动受限的病例存在多种因素。其中一个因素是冠状突过长。本文介绍两例因冠状突过长导致下颌运动受限的病例，以帮助临床医生避免误诊。冠状突过长是一种罕见病症。这里报告的两例病例牙齿均患有牙髓炎，但由于两例病例均存在张口受限，无法进行牙髓治疗。有运动范围受限的临床体征，尤其是在前伸运动时。这些受限运动对两位患者均未造成疼痛，且患者并未意识到自己张口受限。拍摄并评估了全景X线片。X线片显示双侧冠状突过长。仅一例病例因患者经济受限进行了三维计算机断层扫描。在下颌开口受限的病例中，诊断病因时必须考虑冠状突过长。
