Evaluation - A comprehensive examination of the mouth to find signs of cavities with dental x-rays, if necessary: Anesthesia - Numbing the surrounding tissues and cleaning and removing the decayed parts (lasers make this procedure more comfortable); Application: A composite resin substance is applied to cover up the cavities and hardened by a special light; Polishing: The dentist tests the bite, smoothens rough edges and polishes the tooth to ensure that the fillings match the natural teeth.