Kossioni A E, Karkazis H C
Department of Removable Prosthodontics, Dental School of Athens University, Greece.
J Oral Rehabil. 1994 Jul;21(4):419-30. doi: 10.1111/j.1365-2842.1994.tb01156.x.
The purpose of this study was to investigate the effect of gender on the masseteric jaw-jerk reflex, evoked in a sample of nine male and nine female young subjects. Electromyographic jaw-jerk recordings elicited by chin-taps in the relaxed masseter muscle of the preferred chewing side, were obtained using a computerized recording and analysis system. In both groups, a jaw-jerk reflex was recorded in 95.56% out of the total number of chin-taps. The mean latency was significantly shorter in the females (5.75 ms) than in the males (6.14 ms, P = 0.0045), while the amplitude of the reflex was significantly higher in the females (P = 0.0005). No significant differences were found in the mean duration between males (6.86 ms) and females (6.73 ms). It was concluded that sex variation should be taken into consideration in the interpretation of the jaw-jerk reflex.
本研究旨在调查性别对咬肌下颌反射的影响,该反射在9名男性和9名女性年轻受试者的样本中诱发。使用计算机记录和分析系统,获取在偏好咀嚼侧放松咬肌中通过轻叩下巴引发的肌电图下颌反射记录。在两组中,叩击下巴总数的95.56%记录到了下颌反射。女性的平均潜伏期(5.75毫秒)显著短于男性(6.14毫秒,P = 0.0045),而女性反射的幅度显著更高(P = 0.0005)。男性(6.86毫秒)和女性(6.73毫秒)之间的平均持续时间未发现显著差异。得出的结论是,在解释下颌反射时应考虑性别差异。