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目的:研究关节造影锥形束CT影像检查在颞下颌关节紊乱病影像诊断中的意义，为TMD的影像诊断提供参考。方法:回顾性分析2013年8月至2019年8月中山大学光华口腔医学院·附属口腔医院448例颞下颌关节紊乱病患者关节上腔造影锥形束CT影像检查病例，分析患者年龄分布特点，可复性关节盘前移位、不可复性关节盘前移位、关节盘穿孔、关节囊扩张与撕裂等疾病分布情况及关节造影锥形束CT影像特点。结果:448例TMD关节造影患者均为关节上腔造影，其中女性384例，男性64例，中位年龄31.5岁（14~81岁）。患者年龄分布显示，≤20岁者63例，>20且≤30岁者150例，>30且≤40岁者86例，>40且≤50岁者59例，>50且≤60岁者58例，>60岁者32例。影像诊断分布显示，关节盘前移位356例，其中不可复性关节盘前移位328例，可复性关节盘前移位28例；关节盘穿孔152例；附着松弛或撕裂12例。结论:关节造影锥形束CT影像检查对于颞下颌关节结构紊乱类疾病有明确的诊断意义。“,”Objective:To evaluate the meaning of arthrography with cone-beam CT（CBCT） imaging in the diagnosis of temporomandibular disorders(TMD).Methods:Four hundred and forty-eight cases of temporomandibular upper joint cavity arthrography with CBCT imaging were retrospectively analyzed. The distribution of disc displacement with reduction or without reduction, disc perforation, enlargement or tearing of joint capsule were analyzed. The characteristics of arthrography with CBCT imaging were also described.Results:There were 384 female and 64 male among the 448 cases of TMD with CBCT arthrographic images. The median age was 31.5 years， range from 14 to 81 years old. As about the age distribution, there were 63 cases in the group of ≤20 years old, 150 cases in the group of >20 and ≤30 years old, 86 cases in the group of >30 and ≤40 years old, 59 cases in the group of >40 and ≤50 years old, 58 cases in the group of>50 and ≤60 years old, and 32 cases in the group of >60 years old. There were 356 cases with disc displacement, in which there were 328 cases of disc displacement without reduction, and 28 cases of disc displacement with reduction. There were 152 cases with disc perforation, and 12 cases with articular capsule tearing or laxation.Conclusions:Arthrography with CBCT imaging was a meaningful approach to diagnose the TMD with structure disorders.