Influence of diet and red wine exposure on the velocity of at home bleaching: A randomized controlled clinical trial.

Purpose: To evaluate the influence of diet and exposure to red wine on the treatment velocity, clinical results, postoperative tooth sensitivity, and patient satisfaction after tooth bleaching.

Methods: 45 subjects undergoing home bleaching with 16% carbamide peroxide (CP) were randomly separated into three groups, depending on the restriction of colored food and the use of a red wine mouthwash. Shades of teeth 11 and 21 were assessed using a digital spectrophotometer (VITA Easy Shade) at T0 (before treatment), T7 (7 days after treatment), T15 (15 days after treatment), and T30 (30 days after treatment).