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Statistical analysis for mean ± St. deviation for the effect of bleaching effectiveness (∆SGU) between both bleaching protocols
| High intensity | Descending intensities | P-value | |
|---|---|---|---|
| ∆SGU | 3.1 ± 2.3 | 3.7 ± 2.7 | 0.726 NS |
*: significant (p ≤ 0.05); NS: non-significant (p > 0.05).
