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Amalgam Fillings

Amalgam FillingsDental 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 and a powdered alloy composed of silver, tin, and copper. Approximately 50% of dental amalgam is elemental mercury by weight. Dental amalgam fillings are also known as “silver fillings” because of their silver-like appearance. When placing dental amalgam, the dentist first drills the tooth to remove the decay and then shapes the tooth cavity for placement of the amalgam filling. Next, under appropriate safety conditions, the dentist mixes the powdered alloy with the liquid mercury to form an amalgam putty. (These components are provided to the dentist in a capsule as shown in the graphic.) This softened amalgam putty is placed in the prepared cavity, where it hardens into a solid filling. What does getting an amalgam filling involve? Amalgam fillings are usually placed in one appointment. While the tooth is numb, your dentist will remove decay as necessary. The space will then be thoroughly cleansed and carefully prepared before the new filling is placed. If the decay was near the nerve of the tooth, a special medication will be applied for added protection. The silver filling will then be precisely placed, shaped, and polished, restoring your tooth to its original shape and function. It is normal to experience sensitivity to hot and cold when amalgam fillings are first placed, however this will subside shortly after your tooth acclimates to the new filling. You will be given post-care instructions at the completion of your treatment. Good oral hygiene practices, eating habits, and regular dental visits will aid in the life of your new fillings.

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