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[Electrosonographic analysis of sounds emanating from temporomandibular joint without symptom]
1Key Laboratory For Oral Biomedical Engineering of Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.
Objective:
To study the characteristic of joint sounds from temporomandibular joint (TMJ) without symptom during mandible movement.
Methods:
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.
Results:
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.
Conclusions:
Joint sounds can be recorded in asymptomatic TMJ during mandible movement, 4 kinds of joints sounds were found according to the electrosonographic characteristics.
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