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Table 11: Comparison of stimulated whole salivary urea levels between Groups I, II, and III.
| Parameter | Group | Mean | SD | t value | D/F | P value | Results |
| Urea(mg/dl) | Group I versus Group II | 25.91 | 12.07 | 2.65 | 98 | P=0.0095 | S |
| 33.32 | 15.70 | ||||||
| Group II versus Group III | 33.32 | 15.70 | 2.09 | 98 | P=0.0394 | S | |
| 39.69 | 14.80 | ||||||
| Group I versus Group III | 25.91 | 12.07 | 5.10 | 98 | P<0.0001 | S | |
| 39.69 | 14.80 |
SD: Standard deviation, S: Significant, D/F: Degrees of freedom
