Change over 3 months, n (%)

Group A (n = 34)

Group B (n = 35)

Group C (n = 33)

Total (n = 102)

Plaque score1

Deterioration

1 (2.94)

1 (2.86)

8 (24.24)

10

Unchanged

23 (67.65)

23 (65.71)

18 (54.55)

64

Improvement

10 (29.41)

11 (31.43)

7 (21.21)

28

Mucosal score

Deterioration

4 (11.76)

4 (11.43)

6 (18.18)

14

Unchanged

25 (73.53)

29 (82.86)

25 (75.76)

79

Improvement

5 (14.71)

2 (5.71)

2 (6.06)

9

MPS2

Deterioration

1 (2.94)

12 (34.29)

16 (48.48)

29

Unchanged

17 (50.00)

22 (62.86)

15 (45.45)

54

Improvement

16 (47.06)

1 (2.86)

2 (6.06)

19