Group 1

Group 2

Group 3

Group 4

Mean ± SD (range)

New

−5.31 ± 6.79

(−16.9 - 0.00)

−9.12 ± 15.85

(−51.06 - 49.27)

−4.06 ± 7.04

(−20.73 - 7.02)

−4.69 ± 6.19

(−18.10 - 0.00)

1 Infiltration

−7.21 ± 23.91

(−53.08 - 59.63)

31.34 ± 51.60

(−74.05 - 107.11)

12.76 ± 34.81

(−74.81 - 115.57)

0.63 ± 40.35

(−76.34 - 74.96)

2 Infiltrations

3.89 ± 22.26

(−31.58 - 88.33)

3.26 ± 46.79

(−73.05 - 94.46)

−2.15 ± 31.34

(−71.76 - 49.82)

5.12 ± 45.20

(−63.12 - 106.32)

P value

0.0518

0.0026

0.0143

0.7438