Widmalm S E
Acta Odontol Scand. 1976;34(1):43-52. doi: 10.3109/00016357609026557.
The silent period (SP) following a jaw jerk elicited during sustained contraction in the masseter muscles has been studied in two groups of subjects, one with and one without, acute and distinct symptoms of TMJ dysfunction. The subjects with acute TMJ dysfunction symptoms showed significantly shorter latency and longer duration of the silent period and the period of their depressed activity (DA) was also significantly longer than in the group without TMJ dysfunction. The duration of the SP of both muscles was symmetrical in about 60% of subjects in each group. This study validates that the duration of the silent period may be a useful diagnostic tool of clinical interest.
在两组受试者中研究了咬肌持续收缩时诱发的下颌反射后的静息期（SP），一组有颞下颌关节紊乱（TMJ）功能障碍的急性且明显症状，另一组没有。有急性TMJ功能障碍症状的受试者静息期潜伏期明显更短、持续时间明显更长，且其活动抑制期（DA）也明显长于无TMJ功能障碍的组。每组约60%受试者两侧肌肉的SP持续时间是对称的。本研究证实静息期持续时间可能是一种具有临床意义的有用诊断工具。
