Objective: The treatment protocol was designed to assess the efficacy of intracoronal laser teeth bleaching in the treatment of nonvital teeth darkening. Methods: The procedure was much the same with conventional laser teeth bleaching. Gum and lips were protected and bleaching agent was applied on buccal &. lingual surface (including root canal). Results: Teeth received laser bleaching showed 3 - 5 shades whiter. 89% patients had a greater than 85% in the discolorant after an average of 3. 4±0. 75 treatment. Conclusion: Teeth darkening caused by trauma or pulp degeneration are candidate for intracoronal laser teeth bleaching.