Table 1 Baseline data of the study participants

Age (years), mean (SD)

36.7 (11.3)

35.9 (10.4)

33.0 (10.1)

0.410^a

Sex

 Male, n (%)

2 (2.9)

4 (5.8)

7 (10.2)

0.199^b

 Female, n (%)

21 (30.4)

18 (26.1)

17 (24.6)

Duration of the ulcer (hours), mean (SD)

42.8 (10.5)

35.1 (13.6)

34.7 (13.0)

0.039^a,c

Pseudomembranous ulcer size on day 0 from the photograph (mm²), mean (SD)

6.0 (3.9)

7.2 (4.9)

6.5 (5.0)

0.755^a

Erythematous border size on day 0 from the photograph (mm²), mean (SD)

15.3 (8.9)

17.7 (11.9)

19.0 (20.3)

0.876^a

VAS on day 0 (mm), mean (SD)

53.7 (19.6)

50.2 (23.7)

53.2 (25.7)

0.861^d

USS (scores), mean (SD)

16.3 (4.3)

17.6 (4.6)

19.3 (4.1)

0.066^d

OHIP-14 score at the first visit (scores), mean (SD)

25.1 (9.4)

24.7 (9.8)

30.5 (11.9)

0.110^d