Fig. 4: Scanning electron micrographs of side B (treated side) of SDF and PRG groups. | BDJ Open

Fig. 4: Scanning electron micrographs of side B (treated side) of SDF and PRG groups.

From: Preventing white spot lesions around orthodontic brackets: efficacy of pre-reacted glass-ionomer barrier coat versus silver diamine fluoride: an in vitro study

Fig. 4

A SDF-B showing enamel remineralization covers nearly the whole enamel surface with many large calcium crystals (arrows). B A higher magnification of the red boxed area at A shows tiny pores (arrowheads) between the calcium crystallites (arrows). C SDF-B showing complete enamel remineralization with coalescence of the calcium crystallites (arrows) and surface micropores (arrowheads). D PRG-B showing enamel remineralization covers nearly the enamel surface with many large calcium deposits (arrows). E A higher magnification of the boxed area at D shows small porosities (arrowheads) between the calcium crystallites and residuals of PRG particles (curved arrows) adhering to the enamel surface. F PRG-B showing complete enamel remineralization with coalescence of the calcium crystallite (arrows) and surface micropores (arrowheads). (SEM, original magnification; A, D x 20.000, B, E, C & F x 80.000).

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