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Dentists who advocate removal of amalgam fillings often recommend wearing breathing apparatus, using high-volume aspiration, and performing the procedure as quickly as possible. Sources of mercury from the diet, and the potential harm of the composite resins to replace the purportedly harmful amalgam fillings, may also need to be considered. [76]
Other anthropogenic sources of mercury include: cement production (mercury in lime), mining (iron/steel, zinc, gold), use of fluorescent lamps, various instruments and dental amalgam fillings, manufacturing of products containing mercury (thermometers, manometers and other instruments, electrical and electronic switches) and waste disposal. [7]
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 ...
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]
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]
Versatility: Composite fillings can be used to repair chipped, broken or worn teeth [18] which would not be repairable using amalgam fillings. Repairability: In many cases of minor damage to a composite filling, the damage can be easily repaired by adding additional composite. An amalgam filling might require complete replacement.
While they are considered a rare delicacy in Chinese cuisine, especially in soup, the U.S. holds severe import restrictions against bird's nests due to the fear of avian flu. Related: The Truth ...
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 ...