Figure 2
From: Early detection of enamel demineralization by optical coherence tomography
2D OCT images of the tooth obtained (a) before and (b) after the acid application for 120 s. Corresponding en-face images of the same tooth extracted from the 3D OCT data and obtained (c) before and (d) after the acid application for 120 s, respectively. The white lines indicate the depths of the en-face images. Panels (e,f) contain the average OCT depth profiles obtained at the locations indicated by the red lines in panels (a,b), respectively.
