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Mercury

Poster on Dental Amalgam - Chemistry

Subject: 
Chemistry
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Dental materials
Restorative dentistry
Mercury
Alloys
Transition metals
Amalgam
Dental restoration
Dental caries
gold
Corrosion
Palladium
Dental composite

My Name Period 7 DENTAL AMALGAM Dental amalgam?is a?dental?filling material?used?to fill cavities caused by tooth decay. It has been?used?for more than 150 years in hundreds of millions of patients.?Dental amalgam?is a mixture of metals, consisting of liquid mercury (50%), and a powdered alloy composed of silver (~22-32%), tin (~14%), copper (~8%), and traces of indium and palladium. In 1819, a Mercury-based dental amalgam filling was invented?by the English chemist, Bell.

APES

Subject: 
Environmental Science
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fish
Scombridae
Sport fish
Oily fish
Fish products
Aquaculture
Tuna
Mercury
Albacore
Swordfish
King mackerel
Tilefish
Disaster

Emma Mashburn Mr. Knapp APES April 15, 2013 Tuna for Lunch? Questions: Mercury is often in fish and shellfish, causing a danger to human health and giving EPA and FDA a reason to issue a restriction on certain types of these fish The nervous systems of pregnant women and young children are especially susceptible to damage by mercury. Pregnant women do not have to avoid all fish because only few have high amounts of mercury, such as shark, swordfish, king mackerel, or tilefish. Amanda was smart to be cautious; however, only albacore tuna has high amounts of mercury, while other tuna?s have low amounts and are safe to eat.
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