Study for discriminating method of origin side vibration from non-symptomatic clicking group

Abstract

Purpose: study for discriminating method of origin side vibration from non-symptomatic clicking group. Materials and Methods: 60 joints vibrations of 30 subjects in non-symptomatic clicking group was recorded via subject's awareness, examiner's palpation and JVA analysis. Origin side vibration was discriminated with consideration for frequency spectrum, time delay and phase shift of waveforms, analysis of numeric values. Results: There were all unilateral vibrations with JVA analysis and number of origin vibrations were 42. 11 pairs of vibrations showed time delay and phase shift and transferred side vibrations showed smaller values of total integral and bigger values of > 300 / < 300 ratio than origin side vibrations except one pair of vibrations. Also as the ipsi-lateral joint vibrations with smaller values of total integral showed bigger values of > 300 / < 300 ratio than the contra-lateral joint vibrations and there all ipsi-lateral vibrations were showed small values of total integral below 10 and hard to detect time delay and phase shift. So the features were used in discrimination of origin side vibrations. Conclusion: There should be all-around considerations for discrimination of origin side vibrations that is frequency spectrum, phase shift and time delay and analysis of numeric values.

An analysis of temporomandibular joint vibration about the balancing side occlusal contacts and temporomandibular joint noises

“…Classification of each group각각의 수치는 좌/우 진동 중 mirror image와 >300/<300 ratio를 고려하여 원인 관절로 감별되는 쪽을 선택하였다[11]. 개폐구 운동의 4-6회째 구간에서 가장 큰 진폭을 보이는 3 지점을 선택하였고 이 3 지점에서의 평균을 이용하여 다 음 항목들을 측정하였다[12](Fig.…”