Results of research showed that it is easy to mix spherical powders with mercury by trituration and the amalgams of spherical powders are easier to fill, carve and polish than commercial amalgams made of cutting filing powders.

• 结果表明,球形粉末容易与汞混合研磨,球粉汞齐比市售车屑粉汞齐更易充填、雕刻和抛光。