Table 1 Numbers and percentages of teeth resulted in ΔE* > 3.0 and ΔE* > 3.7 in the plasma groups (including all concentrations of H2O2 tested) and the control group after 5, 10, 15 and 20 min treatment, respectively
From: Time-dependent efficacy and safety of tooth bleaching with cold plasma and H2O2 gel
Treatment time (min) | 5 | 10 | 15 | 20 | |||||
|---|---|---|---|---|---|---|---|---|---|
Number and percentage | n | % | n | % | n | % | n | % | |
6%H2O2 with Plasma Groups | ΔE* > 3.0 | 5 | 50 | 8 | 80 | 9 | 90 | 8 | 80 |
ΔE* > 3.7 | 3 | 30 | 8 | 80 | 9 | 90 | 8 | 80 | |
15%H2O2 with Plasma Groups | ΔE* > 3.0 | 4 | 40 | 9 | 90 | 7 | 70 | 9 | 90 |
ΔE* > 3.7 | 4 | 40 | 9 | 90 | 7 | 70 | 9 | 90 | |
25%H2O2 with Plasma Groups | ΔE* > 3.0 | 7 | 70 | 9 | 90 | 10 | 100 | 10 | 100 |
ΔE* > 3.7 | 5 | 50 | 9 | 90 | 9 | 90 | 9 | 90 | |
35%H2O2 with Plasma Groups | ΔE* > 3.0 | 6 | 60 | 8 | 80 | 9 | 90 | 9 | 90 |
ΔE* > 3.7 | 4 | 40 | 6 | 60 | 8 | 80 | 7 | 70 | |
Control Group | ΔE* > 3.0 | 1 | 10 | 2 | 20 | 2 | 20 | 1 | 10 |
ΔE* > 3.7 | 0 | 0 | 1 | 10 | 1 | 10 | 1 | 10 | |