The Influence of Occlusal Disharmony on Condylar Movement during Mastication

近年来，颞下颌关节紊乱病(TMD)患者在牙科保健方面的人数有所增加。有人认为，下颌功能障碍，是由错牙合引起的。可能会因此而影响到颞下颌关节。我们以前的研究表明，咬合不和谐是如何影响下颌骨内点移动的。为了研究TMD的关键机制，还必须了解髁状突的点运动。本研究的目的是研究在边缘运动和咀嚼运动过程中，髁状突的三维运动。结论：1.髁突运动方式与切牙运动方式有密切关系。结果表明，在咀嚼过程中，髁突的运动依赖于髁突上的测量点。

Recently, patients with temporomandibular disorders (TMD) have increased in dental care. It has considered that mandibular dysfunction, caused by malocclusion. May affect temporomandibular joints for this reason. Our previous studies has shown how occlusal disharmony affected Insisal point movement of mandibule. Condylar point movement must be also understood to investigate the critical mechanism of TMD.The purpose of this study was to investigate the three-dimensional movements of condyle during border movements and chewing movements.The results were as follows1. The condyle movement pattern has the close relation with the incisal movement pattern.2. It was attained that condyle movements depend on the measuring point on conclyle during mastication.