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KMID : 1101020220470030156
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Journal of Oral Medicine and Pain
2022 Volume.47 No. 3 p.156 ~ p.160
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Temporomandibular Joint Ankylosis Caused by Osteoarthritis: A Case Report Based on Cone Beam Computed Tomography Images
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Jih Myeong-Kwan
Kim Jin-Soo
Park Hyun-Jeong
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Abstract
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Temporomandibular joint (TMJ) ankylosis is a condition in which condylar movement is restricted because of fibrous or bony union between the mandibular condyle and temporal bone. TMJ ankylosis is most often caused by trauma, followed by systemic or local infection, and secondary to unknown causes. Diagnostic imaging plays a vital role in diagnosing TMJ ankylosis and establishing a treatment plan. Computed tomography (CT) or cone beam computed tomography (CBCT) is currently the imaging technique of choice to accurately demonstrate preoperative ankylosing masses and other surgically important findings, such as the shape of the mandibular condyle and the pathological changes in the joint. The osseous changes in the mandibular condyle are easily identified in the coronal and sagittal sections of CT or CBCT images. This report describes the case of a middle-aged woman who developed TMJ ankylosis of the left TMJ while undergoing repeated treatment for TMJ disease. We report the findings observed on radiographic and CBCT images through continuous observation.
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KEYWORD
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Ankylosis, Cone beam computed tomography, Osteoarthritis, Temporomandibular joint
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