What is amalgam?
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Amalgam is a combination of metals that has been the most popular and effective filling material used in dentistry for the last 150 years. Although it sometimes is called "silver amalgam," amalgam actually consists of a combination of metals. These include silver, mercury, tin and copper. Small amounts of zinc, indium or palladium also may be used.Tooth-colored materials now can be used to restore teeth. Therefore, amalgam is used less often than in the past. However, the newer materials can't be used for all situations. Amalgam is less costly than other materials. It also holds up better over time, especially in teeth that undergo a lot of pressure and wear from chewing.
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Is amalgam safe?
Tiny amounts of mercury are released from the filling when you chew. For most people, this bit of mercury is nothing to worry about. Studies have shown that amalgam fillings do not cause illness. They have been used on people for more than 150 years.
Why is mercury used in amalgam?
Mercury is used in amalgam because it helps make the filling material pliable. When it is mixed with an alloy powder, it creates a compound that is soft enough to mix and press into the tooth. But it also hardens quickly and can withstand the forces of biting and chewing.
Should pregnant women be concerned about amalgam fillings?
Research has not shown any health effects from amalgam fillings in pregnant women. However, mercury can cross the placenta. In general, dentists advise pregnant women to avoid unnecessary dental care.
Health Canada advises pregnant women in need of a filling to wait until the baby is born before they go ahead with the procedure. Our dentists at Rockyview Dental Care can suggest other kinds of fillings, if the work is urgent.
Health Canada advises pregnant women in need of a filling to wait until the baby is born before they go ahead with the procedure. Our dentists at Rockyview Dental Care can suggest other kinds of fillings, if the work is urgent.
Should I visit an amalgam-free practice?
It is not necessary to seek treatment at a practice that does not use mercury. However, if you have a mercury allergy, you may want to consider it. If you have any concerns about amalgam fillings, ask our dentists at Rockyview Dental Care whether composite fillings (white fillings) would work for you.
Should I have my amalgam fillings removed?
You should replace amalgam fillings only when they are worn, broken or when there is decay beneath the filling. There's no evidence that they can cause a problem.Removing good amalgam fillings results in unnecessary loss of healthy parts of the tooth and can release more mercury. If you are concerned about amalgam, discuss your options with our dentists.
