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安氏Ⅱ类1分类错[牙合]髁突运动轨迹与关节盘位置的相关性研究 被引量:6

Relationship between condyle movement and disc position in patients with Class Ⅱ division 1 malocclusion
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摘要 目的探讨安氏Ⅱ类1分类错[牙合]患者髁突运动轨迹变化与关节解剖结构的相关性,以期为颞下颌关节疾病的早期诊断提供参考。方法选择20例安氏Ⅱ类1分类错[牙合]患者(男女各10例,年龄11~12岁),于治疗前进行髁突运动轨迹描记仪检查和MRI影像检查,依据关节盘位置分为关节盘位置正常组和可复性关节盘前移位组,比较两组髁突运动轨迹。结果开闭口运动中可复性关节盘前移位组患者双侧髁突侧向运动量[左右侧分别为(0.32±0.10)和(-0.91±0.49)mm]、垂直向运动分量[左右侧分别为(4.20±0.70)和(3.44±0.21)mm]、髁突矢状向倾斜度[左右侧分别为(32.48±7.70)°和(33.47±12.60)°]与髁突水平向倾斜度[左右侧分别为(-2.60±2.02)°和(-9.23±5.58)°]与关节盘位置正常组患者的差异有统计学意义(P〈0.05)。结论大开口运动中的髁突横向移动可能是引起关节盘前移位的诱因。髁突运动轨迹变化可为早期的功能治疗提供有用的信息。 Objective To investigate the relationship between condyle movement and temporomandibular disorders (TMD) in patients with Class Ⅱ division 1 malocclusion. Methods Twenty patients (from 11 to 12 years old) with Class Ⅱ division 1 malocclusion before treatment were collected. Computer aided diagnosis axiograph(CADIAX) and magnetic resonance images(MRI) were used to analyze the condyle movement between disc displacement and normal groups. Results The sensitive values were found in open/close process in patients with disc displacement: Y [ Left: (0. 32 ± 0. 10 ) mm, Right: ( -0. 91 ±0. 49) mm], Z [ Left: (4. 20 ±0. 70) mm, Right: (3.44 ± 0. 21 ) mm ], sagittal condylar inclination(SCI) [ Left: (32. 48 ± 7.70)°, Right: (33.47 ± 12. 60)°] and horizontal condylar inclination (TCI) [ Left : ( - 2. 60 ± 2. 02) °] R : ( - 9.23 ±5.58 )° ], and those items showed significant difference between two groups. Conclusions The side shift of condyle movement in maximum open/close process might be the inducement of disc displacement. It was revealed that the changes in condyle movement could give useful information in early stage of functional treatment.
出处 《中华口腔医学杂志》 CAS CSCD 北大核心 2010年第1期16-19,共4页 Chinese Journal of Stomatology
关键词 错[牙合] 安氏Ⅱ类 颞下颌关节盘 髁突运动 Malocclusion, Angle Class Ⅱ Temporomandibular joint disk Condyle movement
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参考文献9

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二级参考文献11

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