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Dental decay creates holes in our teeth. An organic
acid produced by bacteria dissolves away the hard outer covering of our teeth.
Fillings are a man-made material designed to fill in or restore the damaged
areas of decayed teeth. Although not normally recommended, fillings can also
replace areas of teeth that have been damaged by fracture. Broken teeth are
usually best restored with
crowns.
Fillings can also repair areas of wear caused by brushing too hard and other
habits.
Dental amalgam is a mixture of metals used to fill back teeth. Most people know
amalgam fillings as silver fillings, as this is one of the major metals in the
amalgam filling. One of the metals in the mixture is a small amount of mercury
which has led some uninformed people to say that dental amalgam is dangerous.
When mercury is combined with the other metals in dental amalgam, its chemical
nature changes, forming a hard dense metal mixture. There is much less metalic
mercury in dental amalgam than what patients are exposed to in food, air, and
water.
Ongoing scientific studies conducted over the past 100 years continue to show
that dental amalgam is safe to use as a restorative material in dentistry.
Dental amalgam has withstood the test of time. Amalgam is a very durable material and has been used safely for more
than 150 years. It is estimated that well over 1 billion amalgam restorations
(fillings) are placed annually.
Modern dental science has greatly improved the strength and durability of white
filling materials to allow us to place white filling materials in back teeth.............
Gold and porcelain are used as
alternatives to amalgam fillings but have a higher cost and take longer to
place. When a tooth has a very large defective silver filling or a major portion
of the tooth breaks away, a porcelain to gold or a full gold
crown
generally works the best.
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