The silver filling we have all done once or even more than that as it is one of the most way to restore the health of a teeth. The silver filling is known as dental amalgam in scientific terms. The mixture of metals is done and applied on cracked cavities in such a way that cavities are repaired at the back of the mouth with an ease. The dentist removes decayed portion of the cavity and make space for applying amalgam filling. The amalgam is applied in such a manner that it matches shape, size and color of cavity. The final step is to polish the filling up to an extent so that roughness of the shape goes away.