Electrosonographic analysis of sounds emanating from temporomandibular joint without symptom / 中华口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the characteristic of joint sounds from temporomandibular joint (TMJ) without symptom during mandible movement.</p><p><b>METHODS</b>Joint sounds of 42 asymptomatic TMJ were recorded and analyzed with K6-I system during mandible movement, the waveform, frequency range, peak frequency and amplitude of joint sounds electrosonogram were studied.</p><p><b>RESULTS</b>Joint sounds were recorded in 25 joints of the 42 joints, 4 kinds of joint sounds were found according to the waveform, frequency range, peak frequency and amplitude of the electrosonography.</p><p><b>CONCLUSIONS</b>Joint sounds can be recorded in asymptomatic TMJ during mandible movement, 4 kinds of joints sounds were found according to the electrosonographic characteristics.</p>