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

Staining Intensity Score

No. of Cases

(n = 20)

Score 1

(negative staining)

Count

02

% within group

10%

Score 2

(weak  staining)

Count

08

% within group

40%

Score 3

(moderate staining)

Count

04

% within group

20%

Score 4

(strong staining)

Count

06

%within group

30%

Total

Count

20

% within group

100.0%