下颌开闭口运动的三维数字化虚拟还原

目的　利用Motion capture运动捕捉及分析系统，获得下颌开闭口运动的6个自由度，结合上下颌骨三维数字化模型，实现下颌运动轨迹还原，为下颌运动虚拟仿真奠定了基础。 方法　1例咬合关系正常的健康成年男性，Motion capture运动捕捉及分析系统采集开闭口运动过程，获得下颌运动的6个自由度。CT图像重建上下颌骨独立的三维数字模型，在Autodesk 3dsmax 8.0中实现下颌开闭口运动还原。 结果　在Autodesk 3dsmax 8.0中，还原了下颌开闭口运动，清楚显示上下颌骨的位置变化关系，上下颌牙列在开闭口运动中的变化，颞下颌关节结构对应变化关系。 结论　Motion capture运动捕捉及分析系统采集6个自由度结合CT重建的上下颌骨三维数字化模型准确还原了下颌开闭口运动，量化可视化了下颌运动过程。

Three-dimensional digital reduction of jaw opening and closing movement

Objective To explore a three dimensional digital displayed method of mandibular movement,and provide a basis for the virtual reality of mandibular motion.Methods 1 case of male adult,with the integrated dentition,and no temporomandi-bular joint disorders was used in this study.The independent three-dimensional digital jaw model was reconstructed with CT image in Mimics11.0.The three-dimensional digital reduction of jaw opening and closing movement with six degrees of freedom was set up in Autodesk 3dsmax 8....