Ruge S, Kordass B
Center for Applied Informatics, Flexible Learning and Telemedicine (CIFT/STZ, Steinbeis Transfer Centre), Greifswald, Germany.
Int J Comput Dent. 2008;11(1):9-16.
Visualization of the dynamic occlusion is one of the central tasks in both clinical dentistry and dental engineering. Many aspects of dynamic occlusion, such as the interocclusal function in the posterior region, cannot be seen directly clinically and at best can be recorded with contact paper. Therefore, analyses of the dynamic occlusion using mounted models in the articulator are unavoidable in many cases for reproduction of dynamic occlusion. However, the reproduction of dynamic occlusion in the mechanical articulator has clear restrictions inherent to the process, but also caused by biological variability. Virtual articulators can expediently supplement mechanical articulators, since with them it is possible to display in relation to time unusual and extraordinary perspectives, such as sectional images and flowing, sliding contact points. One of the latest developments in the field of virtual articulation is the 3D virtual articulation system module of the Zebris company, D-Isny. By means of a specially developed coupling tray, 3D-scanned rows of teeth can be matched with computerized motion recordings of mandibular function. The software displays the movements of the 3D-scanned rows of teeth not only with jaw motion but also with chewing motion--therefore movements under chewing pressure--in real time and facilitates special analytical methods transcending mechanical occlusion analysis in conventional articulators: This includes displays of the strength of the contact points and surfaces, the occurrence of the contact points in relation to time, sectional images of the dentition, analyses of the interocclusal gap in the occlusal region, etc. This software and its possibilities are described and explained by reference to individual cases.
动态咬合的可视化是临床牙科和牙科工程中的核心任务之一。动态咬合的许多方面，如后牙区的咬合功能，在临床上无法直接观察到，最多只能用接触纸进行记录。因此，在许多情况下，使用牙合架上的模型对动态咬合进行分析对于再现动态咬合是不可避免的。然而，机械牙合架中动态咬合的再现存在该过程固有的明显限制，同时也受到生物变异性的影响。虚拟牙合架可以方便地补充机械牙合架，因为借助虚拟牙合架可以显示与时间相关的异常和特殊视角，如断层图像以及流动、滑动的接触点。虚拟咬合领域的最新发展之一是泽布里斯公司（D-Isny）的3D虚拟咬合系统模块。通过专门开发的耦合托盘，可以将3D扫描后的牙列与下颌功能的计算机化运动记录相匹配。该软件不仅可以实时显示3D扫描牙列随颌骨运动的情况，还能显示其在咀嚼运动（即在咀嚼压力下的运动）中的情况，并有助于采用超越传统牙合架机械咬合分析的特殊分析方法：这包括接触点和表面的强度显示、接触点随时间的出现情况、牙列的断层图像、牙合面区域咬合间隙的分析等。本文将通过具体案例对该软件及其功能进行描述和解释。
