Aslanidou Katarina, Xie Rongbing, Christou Terpsithea, Lamani Ejvis, Kau Chung H
Department of Orthodontics, University of Alabama Birmingham, Birmingham, AL, USA.
J Orthod. 2020 Jun;47(2):140-148. doi: 10.1177/1465312520908277. Epub 2020 Mar 1.
It has been reported that temporomandibular joint (TMJ) function after orthognathic surgery differs from normal patients. Dysfunction of the joints occurs often even in the general public, with an incidence in the range of 20%-25%. Population-based studies among adults report that approximately 10%-15% have symptoms of pain and 5% of them had a perceived need for treatment. To date, no studies have reported on the evaluation of TMJ function after orthognathic surgery through the use of four-dimensional jaw tracking.
This study evaluated TMJ function using such a device and information from a TMJ questionnaire. Sixteen orthognathic surgery patients and 17 controls were included in this study. Four-dimensional jaw tracking information was obtained using the SiCAT JMT device. Clinical signs and jaw function were evaluated.
Within the limitations of the study, the following results were seen using the SICAT JMT+ jaw tracking device: (1) no significant differences were found in any of the millimetric measurements between the surgery patients and controls; (2) no significant difference was found in subjective reported symptoms of pain, clicking, crepitation, locking, stiffness, headaches and migraines between the groups; and (3)there was a significant difference in the popping of the joints for surgery and non-surgery groups.
Jaw tracking did not detect significant differences in jaw function, but some clinical symptoms were present.
据报道，正颌外科手术后颞下颌关节（TMJ）功能与正常患者不同。即使在普通人群中，关节功能障碍也经常发生，发病率在20%-25%之间。针对成年人的基于人群的研究报告称，约10%-15%的人有疼痛症状，其中5%的人认为需要治疗。迄今为止，尚无研究报告通过使用四维颌骨追踪技术来评估正颌外科手术后的颞下颌关节功能。
本研究使用该设备及颞下颌关节问卷中的信息评估颞下颌关节功能。本研究纳入了16名正颌外科手术患者和17名对照者。使用SiCAT JMT设备获取四维颌骨追踪信息。评估临床体征和颌骨功能。
在本研究的局限性范围内，使用SICAT JMT+颌骨追踪设备观察到以下结果：（1）手术患者和对照者之间的任何毫米测量值均未发现显著差异；（2）两组之间在主观报告的疼痛、弹响、摩擦音、锁定、僵硬、头痛和偏头痛症状方面未发现显著差异；（3）手术组和非手术组在关节弹响方面存在显著差异。
颌骨追踪未检测到颌骨功能的显著差异，但存在一些临床症状。
