Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
권호 표지

A Study on TMJ Sound by Sonopak

SONOPAK를 이용한 약관절음에 관한 연구

  • Sung-Chang Chung (Dept. of Oral Diagnosis and Oral Medicine School of Dentistry, Seoul National University) ;
  • Soo-Young Kim (Dept. of Oral Diagnosis and Oral Medicine School of Dentistry, Seoul National University)
  • Published : 1992.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study was to investigate the characteristics of TMJ sounds by computerized sound power-spectrum analyser(SONOPAK, Bioresearch Inc., U.S.A.). TMJ sounds were recorded and anaylsed in the 87 patients wit TMJ noises by SONOPAK. The followings are the criteria of TMJ sound analysis. 1. It is possible to record the location of the TMJ sound in relation to the opening/closing cycle of mouth. 2. It is possible to record amplitude of sound(loudness) and frequency of sound (Hz) 3. Clicks display a narrow band of sound within the 0-300 Hz range. The peak frequency generally occurs between 50-150 Hz. And crepitus appear as a wide band of sound, occuring from 0-1300Hz. The data obtained from quantitative TMJ sound analysis give lots of information, but further researches are needed.

Keywords