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Frequency of substance used and oral lesions
| Frequency (Percentage) | |
|---|---|
| Substance used | |
| None | 15 (19.7) |
| Oral tobacco | 53 (69.7) |
| Smoking | 4 (5.2) |
| Alcohol | 1 (1.3) |
| Combined use | 3 (3.9) |
| Gross appearance of oral lesions | |
| Leukoplakia | 23 (30.3) |
| Erythroplakia | 3 (3.9) |
| OSMF* | 1 (1.3) |
| Ulcer | 49 (64.5) |
*OSMF: Oral Submucus Fibrosis
