highly significantP = 0.00001
The correlation between various stages of OSMF with SOD (per/ml) and MDA (nmol/dl) by Spearman's rank correlation method indicated a significant ( P = 0.0010) moderate inverse relationship between various grades of OSMF with SOD as Spearman R (r s ) was 0.5700 and a highly significant ( P = 0.00001) direct strong relationship between various grades of OSMF with MDA as Spearman R (r s ) was 0.6725 [ Table 4 ].