The difference between imported and domestic porcelain teeth, mainly in terms of crown quality and precision, there is no significant difference in appearance. Imported materials of porcelain dental crowns shrink relatively less, and the elastic modulus of natural teeth is close, and the degree of abutment fit is higher. When the porcelain powder stacked on the surface of the abutment crown is imported material, the refraction of light and permeability is better, the three-dimensional sense is stronger, more beautiful, porcelain powder pressure resistance and sturdiness is higher, chewing hard objects is not easy to occur when the split. Porcelain materials imported than domestic biocompatibility is higher, less irritating to the gums, less likely to cause redness and inflammation of the gums.