[Table/Fig-5]:

The comparison of outcome at 4 and 12 weeks against the canal diameter.

	At 4 week		At 12 week
	Canal diameter in mm {mean(SD)} in steroid group	Canal diameter in mm {mean(SD)} in saline group	Canal diameter in mm {mean(SD)} in steroid group	Canal diameter in mm {mean(SD)} in saline group
Success	11.72 (2.28) (32/47)	12.38 (1.85) (8/46)	12.05 (1.93) (28/47)	12.70 (1.36) (22/46)
Failure	9.54 (2.07) (15/47)	11.21(1.92) (38/46)	9.51(2.30) (19/47)	10.23 (1.62) (24/46)
Mean difference (success minus failure)	2.18	1.17	2.54	2.47
95% confidence interval	0.78 to 3.58	-0.33 to 2.67	1.29 to 3.79	1.58 to 3.36
p-value	0.003	0.12	0.0002	0.0001