Figure 4. Graphical representation of the quantification results of the artificial enamel lesion depth of the teeth specimens in different treatment groups. (a) negative control; (b) 0.08 mg/mL rGO/Ag; (c) 0.12 mg/mL rGO/Ag; (d) 0.16 mg/mL rGO/Ag; (e) 0.16 mg/mL rGO; (f) 0.16 mg/mL AgNPs; (g) 10 ppm NaF; (h) native enamel. Lesion depth values are expressed as mean±standard deviation (n=10).
