DELGADO, Evaristo; HERNÁNDEZ-COTT, Pedro L.; STEWART, Bernal; COLLINS, Michael; DE VIZIO, William. Tooth-whitening efficacy of custom tray-delivered 9% hydrogen peroxide and 20% carbamide peroxide during daytime use: A 14-day clinical trial. Puerto Rico Health Sciences Journal, [S. l.], v. 26, n. 4, 2009. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/225. Acesso em: 19 dec. 2025.