"A composite is a tooth-colored filling used to repair a tooth affected by decay, cracks and fractures to improve your smile. The decayed or affected portion of the tooth is first removed and the cavity is then filled with composite. Composite fillings are widely used because they can be closely matched to the color of the existing teeth. Modern composite fillings are highly durable and resistant to wear. They can be used to restore both the front and back teeth, giving you a long lasting, natural-appearing smile."