Kwon, So Ran Effect of various tooth whitening modalities on microhardness, surface roughness and surface morphology of the enamel. [electronic resource] - Odontology Sep 2015 - 274-9 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1618-1255 Standard No.: 10.1007/s10266-014-0163-4 doi Subjects--Topical Terms: Dental Enamel--drug effectsHardnessHumansIn Vitro TechniquesMicroscopy, Electron, ScanningSurface PropertiesTooth Bleaching--methodsTooth Bleaching Agents--chemistry