Table 3.
Assessment of chromium level
| Duration | Group I | Group II | P |
|---|---|---|---|
| Before treatment | 0.48 | 0.52 | 0.12 |
| 7 days | 0.52 | 0.53 | 0.14 |
| 30 days | 40.6 | 62.4 | 0.01 |
| 6 months | 4.9 | 0.52 | 0.04 |
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