Table 2. .

Expression of RNase 7 in inflamed oral epithelia from oral lichen planus and radicular cyst

Tissue types	Location	Grading
​Oral lichen planus	​aSurface layers and granular layers of orthokeratinized epithelium	​+ ~ ++ (positive ~ strongly positive)
	​aSurface layers and pyknotic nuclei of parakeratinized epithelium	​+ ~ ++ (positive ~ strongly positive)
​Radicular cyst	​bSurface of lining epithelium	​− ~ ± (weakly positive)

a: Out of 20 cases of oral lichen planus, 8 showed strongly positive staining in surface layers and granular layers of orthokeratinized epithelium. 2 cases showed weak intensity and 10 cases showed strong intensity of staining in surface layers and pyknotic nuclei of parakeratinized epithelium.

b: Only 3/25 cases of radicular cyst showed weak intensity of positivity in the lining epithelium.