Fillings are designed to repair small to medium-sized cavities. As time goes by, older and larger fillings have a greater propensity to fail. Sometimes, bacteria can work their way between the seam of a filling and cause a new area of decay. When a filling is lost, there might not be enough healthy enamel remaining for your dentist, Dr. Thomas... read more »

Fillings are intended to repair small to medium-sized cavities. Even though a filling is designed to last a long time, the bacteria in your mouth can sometimes weaken the cement that is holding it in place. If a large filling is lost or if new decay has developed in the tooth, there might not be enough healthy enamel remaining to... read more »