Intracoronal bleaching of nonvital discolored mandibular incisors.

Intracoronal bleaching of pulpless discolored mandibular incisors is a valuable treatment modality currently disregarded by many clinicians because of the potentially disastrous consequence of cervical resorption. A patient-administered, intracoronal carbamide peroxide bleaching technique is described. This modified, walking bleaching method minimizes the risks because treatment time is reduced to days, as opposed to weeks with the original walking bleaching protocol, the concentration of the hydrogen peroxide is markedly reduced, and residual hydrogen peroxide is completely eliminated with the use of catalase prior to the definitive restoration.