Table 2.

Histopathological scoring of experimentally induced oral mucosal ulcers in rats

Sampling time	Score	Experimental groups
		Negative control	Positive control	Curcumin-loaded collagen scaffold	ADSCs seeded onto a collagen-curcumin scaffold
3 rd day	Score 0, n (%)	NF	NF	NF	NF
	Score 1, n (%)	NF	NF	NF	1 (20%)
	Score 2, n (%)	NF	2 (40%)	2 (40%)	3 (60%)
	Score 3, n (%)	5 (100%)	3 (60%)	3 (60%)	1 (20%)
7 th day	Score 0, n (%)	NF	1 (20%)	1 (20%)	3 (60%)
	Score 1, n (%)	NF	2 (40%)	2 (40%)	2 (40%)
	Score 2, n (%)	4 (80%)	2 (40%)	2 (40%)	NF
	Score 3, n (%)	1 (20%)	NF	NF	NF

NF: not found