Table 6. Analysis of the average and standard deviation (SD) of the samples in the Vickers microhardness trial.
| Materials | Groups | Mean ± SD | Statistical difference |
|---|---|---|---|
| Ketac | GKetac 0%A | 59.23 ± 7.24 | AF |
| GKetac 0.5%B | 62.01 ± 14.57 | - | |
| GKetac 1%C | 65.28 ± 11.56 | - | |
| GKetac 2%D | 59.66 ± 15.23 | - | |
| GKetac 5%E | 52.31 ± 6.69 | - | |
| Fuji | GFuji 0%F | 79.17 ± 5.76 | FA, FJ |
| GFuji 0.5%G | 67.55 ± 3.66 | - | |
| GFuji 1%H | 68.41 ± 5.25 | - | |
| GFuji 2%I | 62.70 ± 10.15 | - | |
| GFuji 5%J | 53.03 ± 5.32 | - |
One way analysis of variance and Tukey’s test; p ≤ 0.05.
Capital letters indicate the different groups. The 2 letters represent the statistic difference between groups.