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在口腔医学各分支内,下颌运动的研究是一重要课题。在修复学领域中,不但设计出越来越合理、精密的(牙合)架,且认识到下颌运动轨迹有一定的诊断价值。除口腔修复外,在口外、正畸、口腔生理病理等领域中也相继开展了这方面的研究。一、下颌标志点的选定: 下颌为一形状复杂的体,下颌运动是由旋转和平移合成的复杂运动。在运动中,下颌体各部份的运行路径是不同的,必须确定某些标志点,才能得到明确的运动轨迹。近百年来,大部份研究者沿用切牙标志点(以下简称切点)和髁突标志点(以下简称髁突点)作为下颌运动的标志点。髁突点运动轨
In the branches of stomatology, the study of mandibular movement is an important issue. In the field of rehabilitation, not only the design of more and more rational, precise (occlusal) frame, and recognize the trajectory of the mandible has some diagnostic value. In addition to oral repair, in the mouth, orthodontics, oral physiology and other fields also have carried out in this area. First, the mandibular logo points selected: the mandible is a complex shape of the body, mandibular movement is composed of rotation and translation of the complex movement. In the movement, the various parts of the mandibular body of the running path is different, we must determine some signs in order to get a clear trajectory. For the past hundred years, most researchers follow the incisors mark point (hereinafter referred to as the cut point) and the condylar landmark point (hereinafter referred to as the condylar point) as a marker of mandibular movement. Condyle point motion track