本文对微晶玻璃的微观结构对加工性能的影响进行了实验研究。全瓷牙科修复体的制造用于证明材料性能的提高和可加工性的维持之间的竞争目标，以简化制造。仔细制备了三种不同粒度的微观结构试样，并进行了机械加工试验，以获得强度退化数据。

This paper presents an experimental study to characterize the effect of the microstructure of glass ceramics on machining performance. Fabrication of all ceramic dental restorations is used to demonstrate a competing objective between the enhancement of material properties and the sustenance of machinability to ease fabrication. Specimens of three types of microstructure with different grain size were carefully prepared, and machining tests were carried out to obtain the strength degradation data.