Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
권호 표지

Evaluation of osseous changes of TMJ in internal derangement and osteoarthritis patients using MRI

자기공명영상을 이용한 악관절내장증환자와 악관절증환자의 골변화에 관한 연구

  • Cho Su-Beom (Department of Oral and Maxillofacial Radiology, School of Dentistry and Institute of Oral Bio Science, Chonbuk National University) ;
  • Koh Kwang-Joon (Department of Oral and Maxillofacial Radiology, School of Dentistry and Institute of Oral Bio Science, Chonbuk National University)
  • 조수범 (전북대학교 치과대학 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 고광준 (전북대학교 치과대학 구강악안면방사선학교실 및 구강생체과학연구소)
  • Published : 2001.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Purpose: To evaluate the osseous changes of TMJ in internal derangement and osteoarthritis patients using MRI. Materials and Methods: MR images of 111 TMJs in 64 patients were analyzed to evaluate the osseous changes, 111 TMJs were divided into 6 groups according to the radiologic Stages by Schellhas and Wilkes. On MR images, we evaluate the osseous changes of articular eminence and condylar head. Results: The most frequent Stage in internal derangement of TMJ was Stage I. And 28 joints (25.2%) revealed osteoarthritis with internal derangement. When osseous change of articular eminence and condylar head occur, flattening was the most common osseous change. Sclerosis was observed in all Stages and osteophytosis of condylar head was observed in Stage II (1.8%) and III (0.9%). Out of 28 joints with osteoarthritis, 6 joints (21.4%) showed joint effusion. Conclusion: MR image revealed abnormal configuration of disk, but the detection of minimal osseous change was subtle.

Keywords