Takahashi, H A pilot study of exposure of the smear layer to tannic acid solutions. [electronic resource] - The Journal of prosthetic dentistry Sep 1993 - 261-3 p. digital Publication Type: Journal Article ISSN: 0022-3913 Standard No.: 10.1016/0022-3913(93)90062-s doi Subjects--Topical Terms: Acid Etching, DentalDentin--drug effectsDentin Permeability--drug effectsHumansHydrolyzable Tannins--pharmacologyMicroscopy, Electron, ScanningPilot ProjectsSmear Layer