Figure 1

Each tooth had two composite reference points (r1 and r2). The test area was the fissure area between the points. A) All CAM images were assessed Score ‘2’. All MID Scorings were ‘0’. B) CP-OCT images were taken before tooth sectioning. CP-OCT images are presented in grayscale. Black areas have low scattering and white areas have high scattering. All CP-OCT scorings were ‘2’ based on the fissure area near r1 (arrow). C) Histological evaluation using caries indicator dye confirmed demineralization extending into enamel and dentin with Score of ‘2’ (arrow).