Research Article
Effect of Four Bleaching Regimens on Color Changes and Microhardness of Dental Nanofilled Composite
Table 2
Mean and standard deviation (±sd)
E values for all experimental groups.
| | Experimental groups | Mean | Standard deviation (sd) |
| | 1 (Control) | 28.64 | 1.10 | | 2 (Hydrogen peroxide 7%) | 30.18 | 2.05 | | 3 (Hydrogen peroxide 35%) | 29.27 | 0.97 | | 4 (Carbamide peroxide 10%) | 29.65 | 1.33 | | 5 (Carbamide peroxide 35%) | 29.13 | 1.21 |
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