Liu Y, Gan Y, Ma X
Department of Stomatology, Second Affiliated Hospital, Shanxi Medical College, Taiyuan.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1996 Sep;31(5):281-4.
To determine whether disc displacement of temporomandibular joint exists in asymptomatic subjects in China, we examined fifty temporomandibular joints (TMJs) of 39 asymptomatic volunteers by magnetic resonance imaging (MRI). All subjects had no history of TMJ pain, joint noise, deviation, and opening limitation, Oblique sagittal and coronal MR images were obtained by scanning perpendicular and paralell to the longitudinal axis of the condyle respectively. MR imaging depicted anterior, medial and rotational disc displacement in 32% of the asymptomatic joints. Disc displacement in asymptomatic subjects may be a predisposing factor of TMJ dysfunction.
为确定中国无症状受试者是否存在颞下颌关节盘移位，我们通过磁共振成像（MRI）检查了39名无症状志愿者的50个颞下颌关节（TMJ）。所有受试者均无颞下颌关节疼痛、关节弹响、偏斜及开口受限病史。分别通过垂直于髁突纵轴和平行于髁突纵轴进行扫描，获取斜矢状位和冠状位MR图像。MR成像显示32%的无症状关节存在前、内侧及旋转性盘移位。无症状受试者的盘移位可能是颞下颌关节功能障碍的一个诱发因素。
