目的：分析桩冠修复后对根管壁牙本质应力分布的影响。
Objective: To evaluate the effect of the stress distribution of dentine under post crown prosthesis.
附着体桩柱形态的设计不仅影响到桩柱固位，而且影响牙本质应力分布。
The shape design of attachment post is crucial factors influencing post retention and stress distribution to the dentin.
基于对应力壳体的发现和开展的一系列分析，揭示了综放采场顶煤“垫层”作用的力学本质。
On the basis of analyzing stress shell, the mechanical essence that top coal performs a function of bedding is demonstrated.
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