Evaluation of TMJ sound on the subject with TMJ disorder by Joint Vibration Analysis

ABSTRACT

STATEMENT OF PROBLEM: Qualitative and semi-quantitative methods have been developed for TMJ sound classification, but the criteria presented are completely inhomogeneous. Thus, to develop more objective criteria for defining TMJ sounds, electroacoustical systems have been developed. We used Joint vibration analysis in the BioPAK system (Bioresearch Inc., Milwaukee, USA) as the electrovibratography. PURPOSE: The aim of this study was to examine the TMJ sounds with repect to frequency spectra patterns and the integral > 300 Hz / 300 / 300 / 300 /< 300 ratios as well as the frequency spectrums to decide the starting-point of the treatment for TMJ sounds.