Amalgam was first introduced in United States during 1833. It is then used widely as dental filling material over the years because of its strength, durability and low cost (especially for posterior teeth). It is now discontinued or banned in certain countries such as Norway, Sweden, Denmark because of its known biological effects on human body. Amalgam is made of metals such as Silver, Tin, Copper, Zinc and Mercury. 50% of amalgam is made of mercury and they are then mixed to form a hard material which has silvery grey appearance through a process which is known as amalgamation. Patients are exposed to high dose of mercury during the process of placing and removal of amalgam restoration. Continue reading
Mercury dental filling, or best known as dental amalgam is an alloy of silver, tin, mercury, and copper as it’s constituent. The term amalgam is also used as a synonym by the dental profession. Among all, silver and tin have the highest composition within an amalgam.
The use of mercury in the oral environment has raised concerns regarding safety. Currently, several countries have banned the use of dental amalgam because of environment concerns, as well as alleged side effects that may be sustained by patients who receive dental amalgam restorations.