Figure 1
From: Three-dimensional visualization of dentine occlusion based on FIB-SEM tomography

SEM images displaying (a) the surface of the cleaned dentinal specimen before applying the testing toothpaste; (b) the surface of the treated dentin disc showing occlusion by the test toothpaste under low magnification (b-i) and high magnification (b-ii); and (c) the morphology of raw material used for forming the testing toothpaste.