The case report of a 28 year-old patient who went to the comprehensive care service of Mártires del Moncada Provincial Teaching Stomatological Clinic in Santiago de Cuba for presenting a change of color in the anterosuperior left tooth is described. Periapical X-ray was indicated that showed pulpar radicular treatment in that tooth. It was decided to carry out the blenching technique for dyschromia of organic origin for 3 or 4 sessions. The expected result was obtained and the patient was satisfied.