Yu Wenjing, Jeon Hyeran Helen, Kim Soriul, Dayo Adeyinka, Mupparapu Muralidhar, Boucher Normand S
Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Philadelphia, PA 19104, USA.
Institute of Human Genomic Study, College of Medicine, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
Diagnostics (Basel). 2023 Dec 25;14(1):44. doi: 10.3390/diagnostics14010044.
This study aims to determine if a large anterior and reduced posterior/superior joint space is highly predictable for disc displacement. From patients with temporomandibular disorders symptoms, fifty-two experimental joints and fourteen control joints were included. The cone beam computed tomography (CBCT) images were used to calculate posterior-to-anterior (P-A) and superior-to-anterior (S-A) joint space ratios, while disc position was determined using magnetic resonance imaging (MRI). One-way analysis of covariance test and receiver operating characteristics analysis were carried out. The results showed that among the 52 experimental joints, 45 were diagnosed as disc displacement and 7 as normal disc positions (N). All 14 control joints showed normal disc positions. The P-A ratio was 1.46 ± 0.21, 0.99 ± 0.23, and 0.86 ± 0.30 in the control, N, and DD groups, respectively ( < 0.001). The S-A ratio was 1.80 ± 0.27, 1.44 ± 0.33, and 1.08 ± 0.35 in the control, N, and DD groups, respectively ( < 0.001). When an altered P-A ratio and/or S-A ratio are observed on the CBCT, the diagnosis of disc displacement is quite predictable with high sensitivity and specificity.
本研究旨在确定颞下颌关节前间隙增大且后/上间隙减小是否高度预示着盘移位。纳入了52个实验关节和14个对照关节的颞下颌关节紊乱症患者。使用锥形束计算机断层扫描（CBCT）图像计算关节后前（P-A）和上-前（S-A）间隙比值，同时使用磁共振成像（MRI）确定盘位置。进行了单因素协方差分析和受试者工作特征分析。结果显示，在52个实验关节中，45个被诊断为盘移位，7个为正常盘位置（N）。所有14个对照关节均显示正常盘位置。对照、N和盘移位（DD）组的P-A比值分别为1.46±0.21、0.99±0.23和0.86±0.30（<0.001）。对照、N和DD组的S-A比值分别为1.80±0.27、1.44±0.33和1.08±0.35（<0.001）。当在CBCT上观察到P-A比值和/或S-A比值改变时，盘移位的诊断具有较高的敏感性和特异性，预测性相当高。
