Dental fillings restore teeth damaged by decay, cracks, or minor fractures. At Tilden Dental Group in Streeterville, Chicago, IL, Dr. Jessica Reddy uses tooth-colored composite resin that blends naturally with your teeth — providing a strong, durable repair that looks nothing like old-fashioned metal fillings. Treating cavities promptly with a filling prevents decay from spreading and avoids the need for more extensive treatment down the road.