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目的 :为探讨安氏Ⅱ1、Ⅱ2 错与颞下颌关节紊乱病之间的关系。方法 :利用矫正薛氏位X线片对Ⅱ1错16人 ,Ⅱ2 错 17人的双侧颞下颌关节的髁突居关节窝的位置进行评价 ,并依据髁突居关节窝中的位置 (前移、居中、后移 ) ,从上述两类错中各选 5人做双侧颞下颌关节矢状位核磁共振扫描 ,观察关节盘的位置及形态变化。结果 :每一类型错髁突居关节窝中的位置并不一致 :Ⅱ1错髁突居关节窝中位 ,但轻度前移 ;Ⅱ2 错髁突居关节窝后位。当髁突居前位及中位时 :关节盘位置在正常范围且形态表现为正常的双凹形 ;髁突居关节窝后位时 :部分关节盘位置明显前移 ,且形态也表现出异常的前带增厚。结论 :大多数Ⅱ1错颞下颌关节结构基本正常 ;而Ⅱ2错部分患者表现出颞下颌关节结构异常 ,提示与颞下颌关节紊乱病关系密切
Objective: To investigate the relationship between Angle Ⅱ 1, Ⅱ 2 and temporomandibular disorder. Methods: The position of the condylar fossa of the bilateral temporomandibular joint in 16 patients with Ⅱ 1 fault and 17 persons with Ⅱ 2 fault in 17 patients were evaluated by X-ray corrected X-ray. According to the position of the condylar fossa in the fossa fossa Move forward, center, move backward), from the above two types of miscarriage in each of five people to do bilateral temporomandibular joint sagittal MRI scan to observe the location of the disc and the morphological changes. RESULTS: The location of the condyles in each type of condyles was not consistent in the socket of the joint. The condyles of II1 were located in the middle of the socket but slightly advanced, while the posterior position of the socket of the II2 socket was in the socket. When the condyle was located in the anterior and median position: the position of the articular disc was in the normal range and the shape was normal biconcave; when the condyle was in the posterior position of the joint socket, the position of some of the articular discs was obviously advanced and the morphology also showed abnormalities Thicker front band. Conclusion: The majority of Ⅱ 1 wrong temporomandibular joint structure is basically normal; and Ⅱ 2 patients with wrong part of the temporomandibular joint structural abnormalities, suggesting that closely related to temporomandibular joint disorders