A silver filling is made up of small traces of silver, tin, copper, and mercury. It is a popular option with patients because it is the most affordable. It is also easier and quicker to place, as it fits nicely into the space where the cavity was removed.
In terms of durability, a silver filling typically lasts for 10 to 15 years, which is longer than resin fillings but shorter than gold. One disadvantage is that the silver color makes the filling obvious. For this reason, a silver filling is usually used on teeth located in the back of the mouth. Some patients are also concerned about the presence of mercury in the filling though dental professionals say it is not enough to be detrimental to one’s health.