Fig. 5From: Synthesis and characterization of nano bioactive glass for improving enamel remineralization ability of casein phosphopeptide–amorphous calcium phosphate (CPP-ACP)SEM (Hitachi S-450, 20 kV, Japan) images of the enamel surfaces studied. a Control group with ×1000 magnification. In this figure, rough and porous surface of demineralized enamel is evident; b Control group with ×5000 magnification depicting the honeycomb pattern in demineralized enamel surface; c MI-paste plus with ×1000 magnification. In this figure, homogenous deposition of hydroxyapatite on enamel surface is evident; d MI-paste plus group with ×5000 magnification; e Synthesized CPP-ACP@F with ×1000 magnification. Similar to the MI-paste plus group, homogenous deposition of hydroxyapatite on enamel surface is evident; f Synthesized CPP-ACP@F with ×5000 magnification, g Synthesized CPP-ACP@nBG with ×1000 magnification. In this figure, amorphous deposition of hydroxyapatite crystals dissimilar to those of the CPP-ACFP is evident: h Synthesized CPP-ACP@nBG with ×5000 magnification, note that the honeycomb pattern cannot be observedBack to article page