Aim To evaluate the incidence of oral squamous cell carcinoma concomitant with oral sub mucous fibrosis in central India and to correlate precipitating factors associated with oral submucous fibrosis and oral squamous cell carcinoma. This paper also aims to study the incidence of oral squamous cell carcinoma arising secondary to untreated oral submucous fibrosis. Materials and Methods Two hundred and twenty five cases of oral squamous cell carcinoma and one hundred and nineteen cases of oral submucous fibrosis of various regions in oral cavity were included in the study. All the included cases were clinically and histopathologically diagnosed and retrospective data was retrieved. Result In the present study of 119 patients of oral submucous fibrosis, 97.4 % were found to have betel nut chewing habit. Incidence of malignant transformation to oral squamous cell carcinoma in patients of untreated oral submucous fibrosis was found to be 4.2 % in the present study. The incidence of oral cancer concomitant with oral submucous fibrosis was found to be 25.77 %, which is statistically significant. Conclusion From the present study, it is evident that the malignant potential of OSF is underestimated. However, considering the small sample size and the fact that the study was carried out in a small geographical area, further study with a larger sample size and longer duration of follow up on a multicentric basis may be required to reveal the actual malignant potential of the disease.

There are some surgeries after which a temporary cover for raw wounds is required to ensure healing. Some of those circumstances are loss of tissue due to burns, trauma, amputation, chronic ulcer, leprosy, and skin graft sites. Although the body initiates regeneration mechanisms, however the time taken for complete healing of wounds is unpredictable. Also, there is a tendency for long standing wounds to undergo infection and scarring. Oral mucosa is no exception to scarring and infection of wounds and there has always been a search for new materials that can be used for coverage of oral defects. Xenogenous collagen is one such grafting material. Over the years collagen implant solutions for a number of clinical applications include general surgery, burn surgery, neurosurgery, plastic and reconstructive surgery, oral surgery, and peripheral nerve and tendon surgery. This paper aims to focus on collagen as an effective option of wound closure in plastic and reconstructive surgery of the head and neck, especially after loss of soft tissue following resection of oral malignancies.

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