I don't want a silver filling! I hear this from time to time in the office. What are silver fillings (amalgam fillings)? They are sometimes called amalgam because they have a few different things in them amalgamated together to form something new.Just so you know we do not do amalgam silver fillings anymore in our office and have not for many years. This mainly was a factor of the improvement in the strength and durability of white fillings and patient demand. We have found that the ability of the stonger newer composite white fillings that bond to the tooth (strengthening it) and the cosmetic benefits make it a very desirable restorative material.
Amalgam consists of a powder of ground up mainly silver and copper and some other metals mixed with a little drop of mercury. You shake it all together (amalgamate). After a few seconds of "trituration" the thing is kind of maleable and putty like. It is placed into the cavity preperation and initially hardens in a few minutes. It is very important to note that there is basically no murcury coming out of a silver filling once it is amalgamated. They are quite safe as determined by extensive scientific clinical studies-(See links below.)
Silver fillings were very common in the past and were the standard of care, and still are, because they hold up quite well to biting forces. If a dentist is still doing silver fillings, that is still an acceptable method of treatment. There are a few drawbacks to "silver" fillings: 1. They do not bond to the tooth, they basically just fill the cavity. 2. They are silver so there is a cosmetic concern. Now, how many people are looking at your back teeth trying to see in there? If you know them that well, it probably does not matter what your teeth look like. Still, we are all concerned with appearance and want the most cosmetic solution available.
Silver fillings were very common in the past and were the standard of care, and still are, because they hold up quite well to biting forces. If a dentist is still doing silver fillings, that is still an acceptable method of treatment. There are a few drawbacks to "silver" fillings: 1. They do not bond to the tooth, they basically just fill the cavity. 2. They are silver so there is a cosmetic concern. Now, how many people are looking at your back teeth trying to see in there? If you know them that well, it probably does not matter what your teeth look like. Still, we are all concerned with appearance and want the most cosmetic solution available.



See the ADA sites here for more scientific reviewed studies on this sometimes controversial subject:
ADA site on dental filling options
ADA Summary of safety of Amalgam study April 19th issue JADA 2006




They also have reduced the curing times by adjusting the frequency of the light to match the chemical in the material that initiates the reaction-roughly 470nm. Curing times used to be about 40 seconds. The most recent one claims a 5 second cure. That seems a little too short for me, but we will see. They make the thing beep every 10 seconds or so as a timer, so you might hear a mysterious "beep" noise while in the dental office. For all this fancy technology, I tell the kids it's a flashlight, (which it pretty much is).
Now there is an even better way-especially for children-Fluoride Varnish. It's sort of a thick liquid you paint on the teeth coating a concentrated dose of fluoride right up against the teeth, but in total dosage it is quite small. Better yet, long after the patient has left the office, it bathes the teeth in fluoride. It lasts for a few hours or until the patient brushes. It actually tastes pretty good, kind of like bananas I think. The first version thay had was called Duraphat. It was good, but was yellow colored and although very good, it always bothered patients to leave the dental office with goopy yellow looking teeth even if it was just for a few hours. Now they have improved the color. It's a sort of clear/white colored material. It is painted on and once it gets wet, it hardens up a little. Pretty cool, huh.


















