The Spa-dent whitening process provides the maximum whitening benefit, in the least amount of time with virtually no sensitivity, all under the supervision of your Dental Professional. The revolutionary gel formulation is placed in the dual arch mouth trays with the precise dosage of whitening material. The unique blue and red LED light activates the gel, providing powerful whitening with cellular stimulation. Hydroxyl radicals penetrate the tooth enamel to break down stains into progressively smaller particles. This process will penetrate but not harm or damage the tooth enamel, including caps, crowns and veneers. The effect whitens the whole “smile” area of a patient’s teeth.