DESCRIPTION LIGHT WHITENING AC is suitable for medical whitening of strongly discoloured teeth. Reasons for such discoloration of enamel and dentin can be illness, injury, medical treatments or excessive penetration of colouring substances. These cases require special medical measures to restore a healthy appearance of the teeth. LIGHT WHITENING AC has been developed with and for Whitening Lamp XG and gives the best whitening results in the shortest period of time. LIGHT WHITENING AC can be used for whitening of one or more teeth or parts of a tooth, including the intracoronal bleaching of endodontically treated non-vital teeth.