Table 4: Mean and Standard Deviation (SD) of the total ΔΕ at the three measuring days in descending order for each type of tooth.

Tooth Mean Total (ΔΕ) SD
11 1.02 0.6
21 0.98 0.48
32 0.98 0.51
23 0.98 0.73
43 0.95 0.32
12 0.91 0.46
41 0.91 0.51
31 0.85 0.42
13 0.82 0.38
22 0.76 0.43
42 0.71 0.35
33 0.65 0.35