“…Among various causative factors, chewing areca nut plays an important role in the progression of OSF [1,2]. The arecoline, the major component in areca, penetrates through the oral mucosal epithelial membrane and interacts with connective tissue components, thus inducing the proliferation of fibroblasts and collagen concentration enhancement by disturbing collagen synthesis and degradation [1,3]. The habit control, physiotherapy, drugs, laser treatment, nutritional and surgical intervention are options for treating OSF [4,5].…”