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This discussion of the dental amalgam controversy outlines the debate over whether dental amalgam (the mercury alloy in dental fillings) should be used.Supporters claim that it is safe, effective and long-lasting, while critics argue that amalgam is unsafe because it may cause mercury poisoning and other toxicity.
Hal Alan Huggins (1937 – November 29, 2014) was an American alternative dentistry advocate and campaigner against the use of dental amalgam fillings and other dental therapies that he believed to be unsafe. [1] [2] Huggins began to promote his ideas in the 1970s and played a major role in generating controversy over the use of amalgam. [3]
There has been some controversy regarding the use of amalgam fillings by dentists, [7] because the amalgam contains mercury. Some forms of mercury are toxic to humans, but the NCAHF cites the CDC in stating that there is no evidence that "the health of the vast majority of people with amalgam is compromised" or that "removing amalgam fillings ...
Dental amalgam is a mercury-containing filling material used to fill cavities once tooth decay has been removed. [20] [21] Due to prolonged practice in the field of dentistry and working with amalgam there is a significant exposure to mercury among professionals. [22]
To fabricate an amalgam filling, the dentist uses a mixing device to blend roughly equal parts (by mass) of shavings of a silver-base alloy with mercury until the shavings are thoroughly wetted. The silver alloy is typically 40–70% Ag, 25-29% Sn, 2–40% Cu and 0–2% Zn (when the alloy is formulated Zn is a scavenger and is mostly consumed ...
Amalgam is a metallic filling material composed from a mixture of mercury (from 43% to 54%) and a powdered alloy made mostly of silver, tin, zinc and copper, commonly called the amalgam alloy. [16] Amalgam does not adhere to tooth structure without the aid of cements or use of techniques which lock in the filling, using the same principles as a ...
Composites and amalgam are used mainly for direct restoration. Composites can be made of color matching the tooth, and the surface can be polished after the filling procedure has been completed. Amalgam fillings expand with age, possibly cracking the tooth and requiring repair and filling replacement, but chance of leakage of filling is less.
1 No Dental Amalgam Controversy. 2 Device Controversy. 3 Vandalism Warning. 3 comments. 4 No Editors. 5 Vandalized Again. 2 comments. 6 Vandalism. United States ...