Aims: To evaluate serum copper, serum iron, and copper/iron ratio in oral submucous fibrosis disease in Karachi. Study Design: A crosssectional study. Place and Duration of Study: Ziauddin Hospital (Dental OPD), Karachi, Pakistan. In between the period of January 2014 to August 2015. Methodology: This crosssectional study included 130 oral submucous fibrosis patients, which were divided into 50 stage 1 OSMF, 50 stage 2 OSMF and 30 healthy individuals between the age range of 660 years (91 males and 37 females). Detailed questionnaire followed by sample collection of serum copper and iron from each patient was administered. Colorimetric assay analysed the samples. Results: Mean age of OSMF patients was 34 years (15 44 years). Most of them were males (70%), and less were females (30%). The highly affected group was of Muhajirs (Urdu speaking people) with the frequency of 40.8% as compared to other ethnicities. In the present study, the mean serum levels for copper (Cu) and iron (Fe) in healthy individuals were found to be 87 ± 20.2927 µg/dL and 73.7 ± 29.594 µg/dL respectively. In stage 1 OSMF patients, mean serum
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