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Mean, range, standard deviation, and P value of microhardness (posttest)
| Group | Mean±SD | Minimum-maximum | P |
|---|---|---|---|
| Dash (A1) | 361.5±12.3 | 345.2-379.4 | 0.569* |
| Pola Office (A2) | 358.8±16.3 | 331.3-382.5 | |
| Opalescence Boost (A3) | 366.0±16.6 | 338.1-391.5 |
*Nonsignificant. SD: Standard deviation
