Amalgam Carvers Dental Instruments are usually used in dental fillings and are made up of the mixture of copper, tin, mercury and silver. It is used for restoring of teeth that are going to be damaged. The amalgam separator is used to remove such particles from waste water because it is dangerous. Different types and sizes are available depending on the type of work. The cost of such dental equipment really matters because some offices have limited space and budget. A small amalgam separator fits in limited space. Some machines are fixed on the wall while others on the surface.