Alsawaf M, Garlapo D A, Gale E N, Carter M J
Department of Fixed Prosthodontics, State University of New York at Buffalo, School of Dental Medicine.
J Prosthet Dent. 1989 Mar;61(3):349-54. doi: 10.1016/0022-3913(89)90144-3.
The association between condylar inclination and temporomandibular joint (TMJ) clicking was tested by measuring the angles of condylar guidance in the sagittal plane during opening and closing movements in 12 subjects with temporomandibular joint clicks and 16 subjects without TMJ clicks. Each subject had tracings made by using a customized functional clutch. All subjects had full dentition and were without symptomatic mandibular dysfunction. Condylar inclinations were measured in parasagittal tracing planes. The travel path of the hinge axis of the condyle's movements was recorded, directly formed, and compared with a four-component axiograph recording that used the axis-orbital plane as a reference for the subjects. The measurements of angles along several distances (millimeters) of condylar guidance from the axis-orbital plane were obtained and evaluated. The measurements were made in the sagittal plane and through opening-closing movements starting from the actual occlusal vertical dimension of each subject. The results do not support the hypothesis that mean angles of the condylar guidance are significantly different in the group with TMJ clicking compared with the group without TMJ clicking.
通过测量12名患有颞下颌关节弹响的受试者和16名无颞下颌关节弹响的受试者在开闭口运动过程中矢状面髁突引导角，来测试髁突倾斜度与颞下颌关节（TMJ）弹响之间的关联。每位受试者均使用定制的功能性咬合板进行描记。所有受试者均为全口牙列且无下颌功能障碍症状。在矢状旁面描记平面测量髁突倾斜度。记录、直接形成髁突运动铰链轴的移动路径，并与以轴眶平面为参考的四组件轴面描记仪记录结果进行比较。获取并评估从轴眶平面沿髁突引导的几个距离（毫米）的角度测量值。测量在矢状面进行，且从每位受试者的实际咬合垂直距离开始进行开闭口运动。结果不支持以下假设：与无颞下颌关节弹响的组相比，有颞下颌关节弹响的组中髁突引导的平均角度存在显著差异。
