CAJ | 학술논문

目的利用特发性髁突吸收（ICR）患者的锥形束CT（CBCT）资料，探讨其颞下颌关节的变化。方法对39例ICR患者及28例正常人行颞下颌关节的CBCT扫描，测量颞下颌关节结构的各相关指标，并进行统计学分析。结果 ICR组与正常组间髁突内外径、前后径、水平角、关节结节斜度、关节上间隙等测量指标之间的差异均有统计学意义（P＝0.000），表现为ICR组的髁突内外径、前后径、结节斜度、关节上间隙等减小，水平角则增大。结论 ICR的影像学主要表现是髁突的变小、前斜面的吸收、结节斜度的降低，同时髁突有往前内旋转和往上移动的趋势，这些指标可用来评估ICR的进展、疗效及预后。
목적이용특발성과돌흡수（ICR）환자적추형속CT（CBCT）자료，탐토기섭하합관절적변화。방법대39례ICR환자급28례정상인행섭하합관절적CBCT소묘，측량섭하합관절결구적각상관지표，병진행통계학분석。결과 ICR조여정상조간과돌내외경、전후경、수평각、관절결절사도、관절상간극등측량지표지간적차이균유통계학의의（P＝0.000），표현위ICR조적과돌내외경、전후경、결절사도、관절상간극등감소，수평각칙증대。결론 ICR적영상학주요표현시과돌적변소、전사면적흡수、결절사도적강저，동시과돌유왕전내선전화왕상이동적추세，저사지표가용래평고ICR적진전、료효급예후。
Objective Study the radiological change of temporomandibular joint (TMJ) in the idiopathic condylar resorption (ICR) with cone beam computed tomography (CBCT) data. Methods Thirty-nine patients with idiopathic condylar resorption and 28 volunteers without TMJ disorders were underwent CBCT examinations. Then the parameters of condyle-fossa relationship were assessed and statistically analyzed. Results Significantly statistical difference between the ICR group and normal group were detected in condylar medial-lateral distance, anteroposterior distance, articular eminence inclination, and joint space. Conclusions Shortened condyle, resorption of former cant, reduced articular eminence inclination, and an upward-moved and anteromedially-rotated condyle are good indicators for assessing ICR development and its treatment effect and prognosis .