Fig. 8
The SEM images of enamel defect repaired with bone-derived hydroxyapatite (BHA), synthetic hydroxyapatite (SHA), and dried calcium phosphate ionic clusters (CPICs) particles using LbL technique. Complete integration of BHA-LbL with enamel (a), integration failure between SHA-LbL and enamel (b), dried CPICs-LbL mass detachment (c), confirming complete integration of BHA-LbL (d), presence of 4 to 6 µm microleakage between SHA-LbL and enamel (e), integration failure and cohesion failure of dried CPICs-LbL (f), internal structure of BHA-LbL (g), internal structure of SHA-LbL (h), internal structure of dried CPICs-LbL (i). Scale bar; (a, b, and c; 500 µm), (d, e, and f; 50 µm) and (g, h, and i; 1 µm).
