Pedrollo Lise, Diogo Randomized clinical trial of 2 nonvital tooth bleaching techniques: A 1-year follow-up. [electronic resource] - The Journal of prosthetic dentistry Jan 2018 - 53-59 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1097-6841 Standard No.: 10.1016/j.prosdent.2017.03.004 doi Subjects--Topical Terms: AdultBorates--administration & dosageCarbamide PeroxideFemaleFollow-Up StudiesHumansHydrogen Peroxide--administration & dosageMaleOxidants--administration & dosagePeroxides--administration & dosageTime FactorsTooth Bleaching--methodsTooth Bleaching Agents--administration & dosageTooth, NonvitalUrea--administration & dosage