Electrosonographic characteristics of sounds from temporomandibular joint disc replacement

Diagnostic tests for temporomandibular disorders 81

“…This patient's response mirrors which has been reported in many published ICAGD studies and Clinical reports, [6][7][8][9][10]29,31] since the inception of the T-scan I technology in the mid 1980's, [14,15] such that treating the myofascial pain dysfunction with ICAGD is not new. Lengthy DT has been shown in EMG studies to elevate excursive muscle activity levels, and that proper reduction of the DT to <0.4 s, can reduce the muscle hyperactivity and related myofascial pain symptoms.…”

“…[6] The combined data of surface EMG of masticatory muscles and the jaw tracking is a useful and objective method for quantifying the physical components of TMDs treatment. [7,8] JT [ Figure 1] measures and records mandibular range of motion, direction, velocity, fluidity of jaw movements, and rest position of the mandible.…”

Comparison of TMJ vibration frequencies under different joint conditions

“…Many different systems, equipments and methods have been used in the past to accomplish the recording and analysis of TMJ vibration data. 5,10,13,18,20,21 More recent results from studies of electrovibratography, [23][24][25][26][27] joint vibration analysis (JVA), [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] sonography, [44][45][46] electro-sonography [47][48][49][50] and doppler auscultation [51][52][53][54] have been mixed, although far more successful classifications have been published than failures. However, a few dentists have been skeptical of the usefulness of TMJ vibration measurements.…”