Table 2. Intragroup and inter-group comparison of mean VAS scores for pain perception among amlexanox + lidocaine and low-level laser therapy groups .

	Group 1	Group 2	Inter-group: P c
Day 1	8.23	8.92	0.145, NS
Day 2	6.62	4.54	0.001*, SIG
Day 3	4.23	0.23	0.001*, SIG
Intra group: Pa	0.001*, SIG	0.001*, SIG
P b: day 1 and day 2	0.51, NS	0.001*, SIG
P b: day 1 and day 3	0.012*, SIG	0.001*, SIG
P b: day 2 and day 3	0.045*, SIG	0.001*, SIG

^a Friedman test, ^b Paired t test, ^c Mann-Whitney U test.

Note: Level of significance set at P < 0.05. NS: Non-Significant, SIG: Significant.