FIG. 2.

Representative confocal microscopy images of the primary carious lesions produced in study 1, groups A1 to A3. Only the fluorescent lesion image is shown in each case. The intensity of the gray scale (white to black) is indicative of the amount of dye and, therefore, the demineralization. Sound areas appear black, while more-demineralized areas appear progressively whiter (3). (A) Representative confocal microscopy image of a primary carious lesion produced in 4 days in the A1 group (S. mutans-inoculated positive control). Note the depth, area, and fluorescence (intensity) of the lesion compared to that in Fig. 2B and C. (B) Representative confocal microscopy image of a primary carious lesion produced in 4 days in the A2 group (1:100 CsAb). Note that the depth and area of the lesion are smaller than in Fig. 2A; however, the fluorescence (intensity) of the lesion is similar to that in Fig. 2A. (C) Representative confocal microscopy image of a primary carious lesion produced in 4 days in the A3 group (undiluted CsAb). Note that the depth, area, and fluorescence (intensity) of the lesion are significantly less than that in Fig. 2A.