Table.1.

Inclusion and Exclusion Criteria for Samples

Group	Inclusion Criteria	Exclusion Criteria
Group I (Control)	Age and sex matched individuals with no systemic illness.	Individuals with systemic illness.
Group II (Reactive Lesion)	Diagnosed cases of Reactive lesions.	Individuals with systemic illness.
Group III (Oral Submucous Fibrosis)	Clinically diagnosed cases of Oral submucous fibrosis, based on Khana and Andrade ( 1995) Clinical staging. Histopathological confirmation was done using light microscopy and grading based on Pindborg and Sirsat ( 1966)	Patients who are currently undergoing or having undergone any form of treatment for Oral Submucous fibrosis.