Remineralization Potential of Nanohydroxyapatite Toothpaste Compared with Tricalcium Phosphate and Fluoride Toothpaste on Artificial Carious Lesions

Figure 1

(a) Human second bicuspid was horizontally sectioned at 1 mm below cement enamel junction (1). The crown (2) was invested in the acrylic block (3) to create flat surface area (b) of 4 × 4 mm². The indentation was performed on the flat surface (4) by diamond indenter at 1 mm apart from each other (5) in the microhardness tester (c). The indentation (d) were measured for diagonal length (D1, D2) and calculated for Vicker hardness number.

(a)

(b)

(c)

(d)