Methods An ideal three dimensional finite element model was constructed by using SCT image reconstruction technique, self-programming and ANSYS software.The static loads were applied.

• 方法采用螺旋CT扫描、自编程序和ANSYS软件建立起精确的套筒冠三维有限元模型,在其上进行不同载荷的加载,分析不同基牙的位移与应力分布趋势。