Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions

Figure 3

Polarized-light photomicrograph (PLM) of enamel (×10) after demineralization (a), followed by remineralization with fluoride varnish (b) nano-hydroxyapatite toothpaste (c), 20% nano-hydroxyapatite gel (d), 30% nano-hydroxyapatite gel (e) compared to no treatment group (f).

(a)

(b)

(c)

(d)

(e)

(f)