Rammelsberg P, Pospiech P, May H C, Gernet W
Poliklinik für Zahnärztliche Prothetik, Universität München, Germany.
Cranio. 1996 Oct;14(4):286-95. doi: 10.1080/08869634.1996.11745979.
Objective of this study was to evaluate the diagnostic value of 3-D computed axiography to detect anterior disk displacements (ADD) of the TMJ. 65 patients with MRI confirmed ADD with reduction and 27 patients with ADD without reduction were examined by 3-D computed axiography. 44 healthy volunteers with normal disk position and joint function served as controls. A descriptive analysis of the axiographic opening/closing cycle revealed significantly higher rates of abrupt deviations, accelerations/decelerations, and crossings for ADD with reduction compared to healthy volunteers. A new axiographic index reduced the number of false positive to 10% and false negative to 14% of the diagnosis. ADD without reduction was characterized by significantly shorter opening curves. The optimum split point at 11 mm, resulted in 10% false positive and 20% false negative diagnosis. However, the diagnostic value of computed axiography was reduced by the significant influence of the clicking or limited joint on the contralateral TMJ.
本研究的目的是评估三维计算机矢状面断层摄影术对检测颞下颌关节前盘移位（ADD）的诊断价值。对65例经磁共振成像（MRI）证实为可复性ADD的患者和27例不可复性ADD的患者进行了三维计算机矢状面断层摄影术检查。44名盘位置和关节功能正常的健康志愿者作为对照。对矢状面断层摄影术开闭口周期的描述性分析显示，与健康志愿者相比，可复性ADD的突然偏差、加速/减速和交叉发生率显著更高。一种新的矢状面断层摄影术指数将诊断的假阳性率降低到10%，假阴性率降低到14%。不可复性ADD的特征是开口曲线明显更短。在11毫米处的最佳分割点导致10%的假阳性和20%的假阴性诊断。然而，对侧颞下颌关节的弹响或关节受限的显著影响降低了计算机矢状面断层摄影术的诊断价值。
