HISTOPATHOLOGICAL STUDIES ON THE ARTICULAR DISC OF THE HUMAN TEMPOROMANDIBULAR JOINT BY AGING

Park,  Jin-Whan

J Korean Dent Assoc > Volume 9(10); 1971 > Article

The Journal of The Korean Dental Association 1971;9(10):611-615.
Published online October 31, 1971.

악관절도판의 증영적 변화에 관한 병리조직학적 연구

박진환

서울대학교 치과대학 구강해부학교실

HISTOPATHOLOGICAL STUDIES ON THE ARTICULAR DISC OF THE HUMAN TEMPOROMANDIBULAR JOINT BY AGING

Jin-Whan Park

Department of Oral Anatomy, College of Dentistry, Seoul National University

Abstract

The articular discs from temporomandibular joints of thirty men and women whose ages ranged between 20 and 70 years hve been used in this study. The articular discs of the temporomandibular joints of human postmortem material was examined individually by means of microscopic techniques. The following changes were seen: 1. With advancing age some of fibroblast was developed into chondroid cells. Which later may differentiate into true chondrocytes. 2. In young individuals the elastic fibers found only I relatively small numbers. With advancing age elastic fibers was increased in number. 3. With advancing age the arrangement of fibrous tissue are irregular and loosely separated. 4. In the discs, as well as in the fibrous tissue covering the articular surfaces, this cellular changes seems to be dependent upon mechanical influences.