In order to make a filling appear almost invisible to the naked eye, composite fillings are often used. These fillings are designed to match your natural tooth color and are bonded to your teeth, which makes them less likely to fall out. These fillings are used instead of older types of filling material, such as fillings made of silver or gold. Tooth colored fillings have a more esthetic appearance; can be completed in one visit, form a strong seal, and are less likely to contribute to tooth fracture.