Table 1.

Mean value of sub group aphthous ulcer

Visit		Sub group (aphthous ulcers)				Independent Samples t test
		AU		BU
		Mean	SD	Mean	SD	T	Sig
1	No. of ulcer	1.6	0.68	1.65	0.67	0.234	0.816
	Size of ulcer	1.7	0.86	1.7	0.80	0.000	1.000
	Erythema	1.25	0.44	1.3	0.80	0.24	0.808
	Degree of pain	2.95	0.82	2.65	0.81	1.158	0.253
5	No. of ulcer	1.05	0.88	1.05	0.94	0.000	1.000
	Size of ulcer	1.10	0.71	1.30	0.80	0.831	0.410
	Erythema	0.25	0.44	0.75	0.44	3.561	0.001
	Degree of pain	0.95	0.75	2.00	0.64	4.705	0.0001
10	No. of ulcer	0.15	0.37	0.25	0.44	0.776	0.4422
	Size of ulcer	0.15	0.37	0.35	0.59	1.292	0.2040
	Erythema	0.00	0.00	0.15	0.37	1.831	0.0749
	Degree of pain	0.00	0.00	0.05	0.22	1.000	0.3236