Fig. 6

Representative stereo-micrographs of molars from the rat model of caries, showing smooth-surface caries with enamel affected (a), proximal-surface with enamel affected (b), sulcal-surface with enamel affected (c), sulcal-surface with dentin exposed (d), sulcal-surface with 3/4 of the dentin affected (e), and sulcal-surface with whole dentin affected (f). Bold arrows show examples of the indicated damage. Magnification, 14×