Imaging Science in Dentistry

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

Bone change of mandibular condyle using cone beam computed tomography

Cone beam형 전산화단층촬영법을 이용한 하악과두의 골변화에 관한 연구

  • Lee, Ji-Un (Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University) ;
  • Kim, Hyung-Seop (Department of Periodontology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University) ;
  • Song, Ju-Seop (Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University) ;
  • Kim, Kyoung-A (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)
  • 이지운 (전북대학교 치의과전문대학원 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 김형섭 (전북대학교 치의과전문대학원 치주과학교실 및 구강생체과학연구소) ;
  • 송주섭 (전북대학교 치의과전문대학원 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 김경아 (전북대학교 치의과전문대학원 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 고광준 (전북대학교 치의과전문대학원 구강악안면방사선학교실 및 구강생체과학연구소)
  • Published : 2007.09.30
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Abstract

Purpose: To assess bone changes of mandibular condyle using cone beam computed tomography (CBCT) in temporomandibular disorder (TMD) patients. Materials and Methods: 314 temporomandibular joints (TMJs) images of 163 TMD patients were examined at the Department of Oral and Maxillofacial Radiology, Chonbuk National University. The images were obtained by PSR9000N (Asahi Roentgen Co., Japan) and reconstructed by using Asahivision software (Asahi Roentgen Co., Japan). The CBCT images were examined three times with four weeks interval by three radiologists. Bone changes of mandibular condyle such as flattening, sclerosis, erosion and osteophyte formation were observed in sagittal, axial, coronal and 3 dimensional images of the mandibular condyle. The statistical analysis was performed using SPSS 12.0. Intra- and interobserver agreement were performed by 3 radiologists without the knowledge of clinical information. Results: Osteophyte (2.9%) was found more frequently on anterior surface of the mandibular condyle. Erosion (31.8%) was found more frequently on anterior and medial surfaces of the mandibular condyle. The intraobserver agreement was good to excellent (k=0.78-0.84), but interobserver agreement was fair (k=0.45). Conclusion: CBCT can provide high qualified images of bone changes of the TMJ with axial, coronal and 3 dimensional images.

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