16% Carbamide Peroxide Home Bleaching: Soft vs. Rigid Tray in a Randomized Blinded Equivalence Trial

Traditionally, home bleaching has been done with soft silicone trays. Patients now wear aligners, which are rigid trays used for orthodontic treatment. The use of rigid trays for home whitening has not been validated. The aim of this clinical trial is to analyse the effectiveness, comfort and sensitivity perceived by patients when whitening with 0.5 mm rigid aligners.