The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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CHANCE OF JOINT SPACE ACCORDING TO ANTERIOR DISC DISPLACEMENT OF TMJ

악관절원판의 전방변위에 따른 관절간극의 변화

  • Bae Jung-Soo (Department of Dentistry, College of Medicine, Dongguk University) ;
  • Kim Joon-Bae (Department of Dentistry, College of Medicine, Dongguk University) ;
  • Kim Hyung-Soon (Department of Dentistry, College of Medicine, Dongguk University)
  • 배정수 (동국대학교 의과대학 치과학교실) ;
  • 김준배 (동국대학교 의과대학 치과학교실) ;
  • 김형순 (동국대학교 의과대학 치과학교실)
  • Published : 2001.08.01
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Abstract

Objective: Disc displacement may affect the joint space narrowing between condylar head and glenoid fossa. This study was designed to evaluate the correlation between the joint space change and the severity of anterior disc displacement. Materials and Methods: Two hundreds temporomandibular joints MR images of TMD patients(170 joints) and asymptomatic volunteers(30 joints) were evaluated for this purpose. Anterior disc displacement was divided into 3 stages(normal, little to mild, and moderate to severe displacement) based on sagittal images, then joint spaces were measured at medial, central and lateral parts of condyle head on coronal MR images, respectively The joint spaces of 3 groups divided according to the severity of anterior disc displacement were compared. Results: The reduction of joint space was related to the severity of the anterior disc displacement at lateral, medial side and especially at center Conclusion: The temporomandibular joint space was affected by the severity of the anterior disc displacement.

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