Figure 4

Histological section photomicrographs in vivo study. (a,b) Histological photomicrograph after 3 h remineralisation, in group A and group B respectively. (c,d) Histological photomicrograph after 5 h remineralisation, in group A and group B respectively. (e) Histological photomicrograph in blank control group. (f–j). The magnified photomicrograph of (a–e), respectively.