Katzberg R W, Westesson P L, Tallents R H, Drake C M
Department of Radiology, University of California Davis Medical Center, Sacramento, USA.
Am J Orthod Dentofacial Orthop. 1996 May;109(5):515-20. doi: 10.1016/s0889-5406(96)70136-1.
The purpose of this investigation is to compare the prevalence of internal derangement of the temporomandibular joints (TMJ) in asymptomatic volunteers versus symptomatic subjects using magnetic resonance imaging (MRI), with a detailed comparison to clinical signs and symptoms and with attention to a prior history of orthodontic treatment. Bilateral MRI scans were obtained of the TMJs in 76 asymptomatic volunteers and 102 symptomatic patients. A comparison was made to the clinical signs and symptoms, a history of orthodontic treatment, and to the MR findings. The MRI scans were reviewed using established criteria for disk displacement and the reviewers were blinded as to the clinical information. Our results show a prevalence of disk displacement in 25 of 76 (33%) volunteers and 79 of 102 (77%) patients with a statistically significant difference (p < 0.001). No statistical link was noted between a history of prior orthodontic treatment and internal derangement of the TMJ.
本研究的目的是使用磁共振成像（MRI）比较无症状志愿者与有症状受试者颞下颌关节（TMJ）内紊乱的患病率，并与临床体征和症状进行详细比较，同时关注正畸治疗史。对76名无症状志愿者和102名有症状患者的颞下颌关节进行了双侧MRI扫描。将其与临床体征和症状、正畸治疗史以及MRI检查结果进行了比较。使用既定的盘移位标准对MRI扫描进行评估，评估人员对临床信息不知情。我们的结果显示，76名志愿者中有25名（33%）出现盘移位，102名患者中有79名（77%）出现盘移位，差异具有统计学意义（p < 0.001）。未发现既往正畸治疗史与颞下颌关节内紊乱之间存在统计学关联。
