Composite Fillings Lombard, IL Dentist Harmful bacteria on teeth can lead to decay. Untreated decay may cause further complications, such as pain or infection. Composite fillings are a safe, effective solution to help preserve your teeth. Composite fillings are made of a tooth-colored, composite resin. This resin is strong, durable, and aesthetic. We gently remove decayed tissue and place your filling to help prevent further damage. We can help you decide whether composite resin fillings are right for you. To request an appointment, contact Cater Dental.