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Intergroup comparison of the percentage decrease in OHIP values (p > 0.05, Mann–Whitney U test).
| Intergroup Comparison (OHIP) | z-Score | p-Value |
|---|---|---|
| Informative: B vitamins | −0.23 | 0.409 |
| Informative: probiotics | 0.502 | 0.617 |
| Informative: LLLT | −0.102 | 0.92 |
| B vitamins: probiotics | −1.016 | 0.307 |
| B vitamins: LLLT | −0.669 | 0.502 |
| Probiotics: LLLT | 0.314 | 0.756 |
