Dental amalgam is a blend of metals such as silver, copper and tin. Mercury binds these metals together, providing a strong, hard, durable ‘silver’ filling for your teeth. Dental amalgam is less expensive than other materials.

Amalgam fillings have been the most widely used, time tested and cost effective material for fillings in back teeth. It is strong, durable and easy to use. They can withstand high chewing load and are useful for back teeth -especially the molar teeth where the chewing load is greatest. While concerns have been raised about dental amalgam due to its mercury content, authorities such as the British Dental Association, US Public Health Service, FDI World Dental Federation and World Health Organisation state that amalgam has been used for more than 150 years in millions of patients and no controlled studies have shown adverse health effects, except for rare cases of mercury allergy.

Src: Amalgam . your dental health . oral health topics . healthy . New Zealand Dental Association . web . 21sep2015