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Statistical analysis for mean ± St. deviation for the effect of bleaching effectiveness (ΔEdiff) between both bleaching protocols
| High intensity | Descending intensities | P-value | |
|---|---|---|---|
| Difference in ∆E | 1.3 ± 3.9 | 0.25 ± 2.2 | 0.165NS |
*: significant (p ≤ 0.05); NS: non-significant (p > 0.05).
