Patients included in this study must be over 18, in good general health and buccal, have teeth free of carious lesions and periodontal disease, which agree with the informed consent document . And the color of the anterior teeth higher is classified as A2 or greater value , according to the scale VITA Classical (Vita Zahnfabrik, Bad Sackingen, Germany) and the spectrophotometer Easyshade Vita (Vita Zahnfabrik, Bad Sackingen, Germany). Evaluation of color through the VITA scale Classical will be made independently by two calibrated investigators and blind.