Evaluation of the Effect of Nanographene Oxide on Microleakage of Conventional and Resin-Modified Glass Ionomer

Figure 2

The images of the samples under the stereomicroscope with 40x magnification. (a) Dye penetration with the score of 2 at the occlusal margin and the score of 3 at the gingival margin. (b) Dye penetration with the score of 1 at the occlusal margin and the score of 3 at the gingival margin. (c) Dye penetration with the score of 0 at the occlusal margin and the score of 3 at the gingival margin (O, occlusal margin; G, gingival margin; A, axial wall; the scores of dye penetration: 0 = no dye penetration; 1 = dye penetration less than half of the distance between the tooth surface and the axial wall; 2 = dye penetration more than half of the distance between the tooth surface and the axial wall, but no axial wall involvement; 3 = dye penetration involving the axial wall of the cavity).

(a)

(b)

(c)