The evidence from the literature suggests that the management of discolored endodontically treated teeth by means of combined intracoronal teeth whitening technique bleaching is a valid treatment modality in terms of safety, efficacy, time efficiency and aesthetic outcome. The result from the 16-year prospective study by Amato et al. (2006) also demonstrated the chromatic stability of nonvital discolored teeth, when subjected to the combined intracoronal tweet whitening technique. The clinical outcome has vastly improved the poor appearance of the upper right central incisor.
Please see in the links below, a number of our clinical cases performed by Dr. Nico Kamosi