CD68 and Oral leukoplakia: In contrast, Oral Leukoplakia samples showed a significantly (p ≤ 0.032) increased cell density and Labeling Index (LI) of IL-23R and CD68 positive cells compared to Controls (mean IL-23R 64 cells/mm2 vs. 5 cells/mm2 and mean CD68 103 cells/mm2 vs. 8 cells/mm2) (Tables 1, 2, Figure 4).