Group

Time

Normal limit

Before treatment

After 36 h

After 1 week

1

6.09 ± 0.29^a

5.59 ± 0.21^a

6.09 ± 0.29^a

1.8 - 6.3 [George et al., 2010]

2

6.07 ± 0.38^a

5.77 ± 0.30^a

6.07 ± 0.38^a

3

5.81 ± 0.36^a

5.51 ± 0.28^a

5.81 ± 0.36^a

4

5.91 ± 0.36^a

0.87 ± 0.16^b

1.21 ± 0.24^b