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KMID : 0896020070370030139
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Korean Journal of Oral and Maxillofacial Radiology
2007 Volume.37 No. 3 p.139 ~ p.147
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Bone change of mandibular condyle using cone beam computed tomography
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Lee Ji-Un
Kim Hyung-Seop
Song Ju-Seop
Kim Kyoung-A
Koh Kwang-Joon
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Abstract
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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. (Korean J Oral Maxillofac Radiol 2007; 37 : 139-47)
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KEYWORD
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Tomography, Cone Beam Computed, Mandibular Condyle, Bone Change
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