Mercury is a naturally occurring element found in air, water and soil. Mercury exists in a number of different forms: elemental mercury. metallic mercury inorganic mercury compounds. organic mercury compounds.
Conclusion. Mercury fillings are still used today by many dentists all around the world. Amalgam is a cost effective and strong material to use to fill teeth. They also tend to last much longer than their composite resin counterparts.Even though a metal filling may be stronger, many people still choose to have composite fillings placed due their aesthetic appearance.n order for amalgam to have the correct consistency, it is made up of a number of different metals. Amalgam fillings typically contain 40-50% mercury with the remaining 50-60% being made up of a metal powder. The metal in this powder is a combination of: 1  Tin. 2  Silver.
Whereas, metal filling, will cost you about $75 to $ 145 per filling. Hence, on an average the dental filling costs about $50 to $300 depending on where you live and the filling material that is used by the dentist such as amalgam or composite.Dental fillings on an average cost one about $50 per tooth.verage cost of Dental Filling. Dental fillings are of several kinds. However, if you were to opt for the best which are the composite resin fillings then the cost will be anywhere in the range of $150 to $200.