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  Indian J Med Microbiol
 

Figure 2: SEM observation for the top view of the specimens. Low (a) and high magnification;(b) top surface view for Control group (before erosion challenge) showing smooth enamel surface next to the orthodontic bracket. Low (c) and high (d) magnification forControl group (after erosion challenge) showing rough enamel surface with obvious boundaries of the enamel prisms. Low (e) and high (f) magnification for Fluoride group (after erosion challenge) showing rough enamel surface with obvious boundaries of the enamel prisms. Low (g) and high (h) magnification for Bioglass group (after erosion challenge) showing crystalline structures covering the areas next to the orthodontic bracket

Figure 2: SEM observation for the top view of the specimens. Low (a) and high magnification;(b) top surface view for Control group (before erosion challenge) showing smooth enamel surface next to the orthodontic bracket. Low (c) and high (d) magnification forControl group (after erosion challenge) showing rough enamel surface with obvious boundaries of the enamel prisms. Low (e) and high (f) magnification for Fluoride group (after erosion challenge) showing rough enamel surface with obvious boundaries of the enamel prisms. Low (g) and high (h) magnification for Bioglass group (after erosion challenge) showing crystalline structures covering the areas next to the orthodontic bracket