A filling is the recommended treatment for cavities. A cavity is an area of decay in a tooth caused by plaque accumulation. If left untreated, a cavity can reach the nerve of the tooth and cause infection. It would then require root canal therapy. Fillings have been the trusted solution to cavities for decades, and more filling options have become available throughout the years. During a filling, the decay is removed from the tooth leaving a vacancy in the tooth. The exposed area is then bonded, and the filling material is placed and molded to the shape of the tooth. Finally, the filling is hardened and polished to complete the restoration. Amalgam Fillings This type of filling is made of metal and is often referred to as a “silver” filling. This metal filling is very strong and durable and withstands heavy biting forces. This option tends to be cheaper than composite fillings, but it is also much more noticeable in the mouth, which can be unappealing for some. Composite Fillings This type of filling is made of acrylic and is often referred to as a “white” filling because it resembles the color of the tooth. These fillings are also strong and durable, but not as much as their amalgam counterparts. This option tends to be more expensive than amalgam fillings, but it offers a natural- looking restoration that is nearly invisible, preserving your smile. One thing to take note is that fillings do not last forever. Eventually fillings of any kind can begin to fail, so be sure to come in for your regular examinations to see if any of your fillings need to be replaced.