Griffin C J, MacLean A J, Yaeger J A, Munro R R
Aust Dent J. 1978 Dec;23(6):480-7. doi: 10.1111/j.1834-7819.1978.tb03567.x.
Electromyographic analysis was carried out prior to occlusal equilibration for patients who had some form of TMJ dysfunction and again after treatment. The results were compared with similar analyses for patients without any symptoms of dysfunction (controls) and for patients who had been wearing some kind of occlusal appliance as treatment for dysfunction. The parameters measured were the period of minimal activity (inactive phase of jaw elevators sometimes referred to as the inactive phase), the duration of muscle contraction before tooth contact (DMC), the period of muscle activity after tooth contact (latency), the inhibitory response, and the duration of the clench phase of the temporal and masseter muscles. In general the pathological series had longer cycles, longer DMC, longer clench phases and less significant correlation coefficients than the controls. The results indicated a dominance of the closing muscles in the pathological groups over the other parameters of the cycle during metronome monitoring. Also, the controls and the POST equilibration group yielded readily to cortical command. The parameters of the cycle in the POST-equilibration group were facilitated as compared to the other groups.
对患有某种形式颞下颌关节功能障碍的患者，在进行咬合平衡调整之前和治疗后再次进行肌电图分析。将结果与对无功能障碍症状的患者（对照组）以及已佩戴某种咬合矫治器作为功能障碍治疗手段的患者的类似分析结果进行比较。所测量的参数包括最小活动期（下颌升肌的静止期，有时称为非活动期）、牙齿接触前肌肉收缩的持续时间（DMC）、牙齿接触后肌肉活动的持续时间（潜伏期）、抑制反应以及颞肌和咬肌紧咬期的持续时间。总体而言，与对照组相比，病理组的周期更长、DMC更长、紧咬期更长且相关系数更低。结果表明，在节拍器监测期间，病理组中闭口肌在周期的其他参数方面占主导地位。此外，对照组和平衡调整后组对皮质指令反应灵敏。与其他组相比，平衡调整后组的周期参数得到了改善。
