Scanning Electrochemical Microscopy as a Tool for the Characterization of Dental Erosion

Figure 4

SECM 2D images obtained with a platinum microelectrode (𝑟=12.5 μm) in a 0.2 mmol L⁻¹ H₂SO₄ + 0.1 mol L⁻¹ KCl solution (pH = 3.4) for an insulating substrate (a) and a tooth sample at different times: 0 minutes (b), 60 minutes (c), and 70 minutes (d). Image (d) was recorded after solution stirring. Scan rate = 20 μm s⁻¹.

(a)

(b)

(c)

(d)