Table1.

Mean (±SD) of VAS score in patients with post endodontic pain (PEP) in placebo, ibuprofen and ibuprofen + alprazolam treatment groups

Group	Before	4H	6H	12H	24H	48H	72H
aPlacebo	8.20 (1.01)	4.93 (1.16)	3.80 (1.74)	3.60 (2.29)	1.58 (0.90)	1.00 (1.04)	0.92 (1.00)
bIbuprofen (400mg)	7.60 (0.99)	3.67 (1.88)	3.00 (1.36)	2.53 (1.06)	1.07 (1.22)	0.87 (1.25)	0.80 (1.15)
cIbuprofen(400mg)+ Alprazolam (0.5mg)	8.20 (1.26)	2.67 (1.11)	2.33 (1.05)	1.60 (0.91)	1.33 (0.90)	0.93 (0.88)	0.73 (0.59)
pvalue	NS	a, b: 0.05 a, c: 0.0001	a, c: 0.018	a, c: 0.003	NS	NS	NS