|
Adjacent sound enamel
|
T0
|
T1
|
ΔE1 (T0–T1)
|
T2
|
ΔE2 (T0–T2)
|
T3
|
ΔE3 (T0–T3)
|
---|
a
|
b
|
a
|
b
|
a
|
b
|
a
|
b
|
a
|
b
|
---|
Icon® resin infiltration
|
0.20 ± 1.54
|
26.30 ± 7.78
|
0.026 ± 1.76
|
18.39 ± 5.31
|
− 0.29 ± 1.38
|
21.47 ± 7.32
|
5.68 ± 1.24
|
− 0.37 ± 1.18
|
21.41 ± 6.11
|
7.19 ± 1.17
|
− 0.57 ± 1.71
|
23.34 ± 10.93
|
9.66 ± 1.42
|
Clinpro™ XT varnish
|
− 0.37 ± 1.14
|
24.08 ± 5.85
|
− 0.51 ± 1.41
|
17.71 ± 4.08
|
− 0.58 ± 1.23
|
19.58 ± 6.89
|
4.61 ± 1.13
|
− 0.63 ± 1.06
|
20.74 ± 6.66
|
7.68 ± 1.12
|
− 1.03 ± 1.49
|
23.74 ± 6.66
|
10.59 ± 1.21
|
Inter group comparison of colour changes
|
0.000**
| |
0.001**
| |
0.000**
|
- Statistical tests: intergroup comparison—independent Student’s t test
- a red-green axis, b yellow-blue axis, ΔE colour changes, T0 before intervention, T1 immediate after intervention, T2 3 months, T3 6 months
- **p < 0.01