Introduction: Oral sub-mucous fibrosis (OSMF) is a chronic, progressive, irreversible, scarring disease, which predominantly affects the people of South-East Asian origin. This condition was described first by Schwartz1 while examining five Indian women from Kenya, to which he ascribed the descriptive term “atrophia idiopathica (tropica) mucosae oris.” Later in 1953, Joshi2 from Bombay (Mumbai) redesignated the condition as OSMF, implying predominantly its histological nature.

Described for the first time in detail in the year 1966 by Pindborg and Sirsat,3 OSMF is now definitely being Original Article Abstract: Introduction: Oral sub-mucous fibrosis (OSMF) is a chronic, irreversible, disease of the oral cavity characterized primarily by burning sensation in the mouth particularly while eating spicy food and progressive development of the inability to open mouth (trismus). Very few…