Tooth colored fillings are also referred to as composites, because they are composed of a complex composite of plastic and zirconia/silica. Tooth colored fillings are actually bonded to teeth compared to silver / amalgam fillings, which are not. Tooth colored fillings now are harder and more durable than silver / amalgam fillings. A small filling could conceivably last your lifetime and larger fillings can be expected to last many years. The factors that determine the lifespan of a particular filling include the tooth, the size of the filling relative to the tooth and how teeth are cleaned and maintained daily.
January 7, 2021