Methods Five models of mandibular first molar of double implant-supported with different spatial arrangements were constructed by using threedimensional finite element method.

• 方法模拟不同空间排列的双种植体支持修复下颌第一磨牙的模型,在保证其它因素都不变的情况下,采用三维有限元法,分析种植体骨界面应力分布。