Methods A three-dimensional finite element model of maxilla containing palatal implant was built using spiral CT scanning, computer image processing, and CAD technology.
方法采用螺旋CT扫描、计算机图像处理及CAD技术，建立含腭部种植体的上颌骨三维有限元模型。
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CONCLUSION: the finite element model of artificial disc replacement can be established by CT scanning, digital processor and computer aided design, and used for further study on spinal biomechanics.
The differences of J-integral between CT specimens with and without loading holes have been compared and analyzed by means of incremental theory elastic - plastic finite element calculations.