A classification first published in 1993, that has been adopted as a consensus definition, identifies StevensâJohnson syndrome, toxic epidermal necrolysis, and SJS/TEN overlap. All three are part of a spectrum of severe cutaneous reactions (SCAR) which affect skin and mucous membranes.
Approximately half of a dental amalgam filling is liquid mercury and the other half is a powdered alloy of silver, tin, and copper. Mercury is used to bind the alloy particles together into a strong, durable, and solid filling.he form of mercury associated with dental amalgam is elemental mercury, which releases mercury vapor. The form of mercury found in fish is methylmercury, a type of organic mercury. Mercury vapor is mainly absorbed by the lungs. Methylmercury is mainly absorbed through the digestive tract.
DENTAL AMALGAM FILLINGS Fillings tend to be a temporary solution rather than a permanent one. Amalgam fillings (silver) are a mixture of different metals such as 65% silver, 6% copper,2% zinc and 25% tin bound with elemental mercury. Trituration is the process of mixing these alloys together with mercury.The mercury makes up between 45-50% of the mixture and acts as glue that binds these metals into a hard stable, and safe substance that can last for decades. These fillings usually last 12 years or longer.rituration is the process of mixing these alloys together with mercury. The mercury makes up between 45-50% of the mixture and acts as glue that binds these metals into a hard stable, and safe substance that can last for decades. These fillings usually last 12 years or longer.