Christensen L V, Orloff J
Marquette University, School of Dentistry, Milwaukee, Wisconsin.
J Oral Rehabil. 1992 May;19(3):253-63. doi: 10.1111/j.1365-2842.1992.tb01100.x.
Surface electrovibratographic (EVG) recordings were obtained from the temporomandibular joints (TMJ) of clinically normal subjects (absence of TMJ sounds) and clinically abnormal subjects (presence of TMJ sounds). As examined through single factor analyses of variance and coefficients of intraclass correlation, the EVG recordings showed excellent reproducibility. The analyses showed also that, in comparison with clinically normal TMJs, the vibrations of clinically abnormal TMJs had higher median (+79%) and peak (+137%) frequencies, higher peak amplitudes (+740%), and higher intensities as expressed through the estimated total energy contents (+1843%) and the integrals (+1215%) of power spectrum density functions.
从临床正常受试者（无颞下颌关节弹响）和临床异常受试者（有颞下颌关节弹响）的颞下颌关节（TMJ）获取表面电振动图（EVG）记录。通过单因素方差分析和组内相关系数检验，EVG记录显示出极佳的可重复性。分析还表明，与临床正常的颞下颌关节相比，临床异常的颞下颌关节的振动具有更高的中位数频率（+79%）和峰值频率（+137%）、更高的峰值振幅（+740%），以及通过估计的总能量含量（+1843%）和功率谱密度函数的积分（+1215%）所表示的更高强度。
