Table 1: Showing staining quantity score in Group 1 (oral potentially malignant disorders) after immunohistochemical staining with SMAD = 4.

Table 7: Showing staining quantity score in Group 1 (oral potentially malignant disorders) after immunohistochemical staining with SMAD = 4.

Staining Quantity Score		No. of Cases (n)
Score 0 (no positive cells)	Count	02
Score 0 (no positive cells)	% within group	10.0%
Score 1 (< 5% of positive cells)	Count	08
Score 1 (< 5% of positive cells)	% within group	40%
Score 2 (6-35% positive cells)	Count	05
Score 2 (6-35% positive cells)	% within group	25%
Score 3 (36-70% positive cells)	Count	04
Score 3 (36-70% positive cells)	% within group	20%
Score 4 (> 70% positive cells)	Count	01
Score 4 (> 70% positive cells)	% within group	05%
Total Count		20
Total % within group		100.0%