Research Article
Whitening Efficacy of 3% Carbamide Peroxide Gel Activated by Lactoperoxidase
Table 5
ΔE values for each shade of the treatment group and the control group (n = 19).
| | Treatment | Control | | Data in median (first quartile-third quartile) |
| A1 | 4.39 [2.36–5.76] n = 52 | 3.60 [2.03–5.48] n = 60 | 0.209 | A2 | 3.97 [2.89–5.09] n = 24 | 3.18 [1.77–5.17] n = 47 | 0.206 | A3 | 4.69 [2.43–8.10] n = 21 | 5.15 [4.27–7.28] n = 13 | 0.425 | A3.5 | 4.08 [3.33–7.06] n = 19 | 2.36 [1.74–4.08] n = 16 | 0.004 | A4 | 7.28 [2.98–10.57] n = 4 | 8.08 [4.75–11.97] n = 7 | 0.705 | B1 | 5.12 [2.31–12.99] n = 20 | 4.82 [3.70–9.23] n = 11 | 0.741 | B2 | 3.95 [2.28–6.53] n = 37 | 3.31 [1.80–6.44] n = 28 | 0.529 | B3 | 4.30 [2.86–7.86] n = 36 | 3.71 [2.57–5.96] n = 40 | 0.206 |
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< 0.05 (test of Mann–Whitney): treatment vs. controls. |