Table 2.
Differences in microhardness, roughness, and overlay thickness between groups after 4, 7, and 14 days of immersion.
| Group |
||||||
|---|---|---|---|---|---|---|
| C |
S |
B |
R |
|||
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | P value | Tukey's pairwise comparison | |
| Microhardness | ||||||
| 4 days | 30.48 ± 4.33 | 25.88 ± 4.35 | 35.11 ± 4.06 | 39.00 ± 5.41 | <.0001∗ | R = B > C > S |
| 7 days | 27.28 ± 2.59 | 29.66 ± 3.64 | 24.98 ± 3.37 | 31.16 ± 2.34 | <.0001∗ | R>C = B, R = S, S = C, S > B |
| 14 days | 24.13 ± 5.31 | 22.88 ± 2.96 | 21.77 ± 2.81 | 26.16 ± 2.98 | 0.0045 | R = C, R > S > B, C = S = B |
| Roughness | ||||||
| 4 days | 1.60 ± 0.25 | 1.37 ± 0.21 | 1.43 ± 0.19 | 1.54 ± 0.11 | 0.0641 | NS |
| 7 days | 0.87 ± 0.57 | 1.46 ± 0.34 | 2.17 ± 0.41 | 1.92 ± 0.51 | <.0001∗ | R = B, R = S, B > S > C, R > C |
| 14 days | 1.57 ± 0.28 | 3.07 ± 0.52 | 3.69 ± 1.13 | 1.50 ± 0.36 | <.0001∗ | B = S > R = C |
| Overlay thickness | ||||||
| 4 days | 0.80 ± 0.12 | 0.65 ± 0.09 | 1.04 ± 0.17 | <.0001∗ | R>S > B | |
| 7 days | 2.29 ± 0.28 | 2.47 ± 0.67 | 2.86 ± 0.42 | 0.0402 | R = B, S = B, R > S | |
| 14 days | 2.92 ± 0.36 | 2.97 ± 0.29 | 3.55 ± 0.44 | 0.0022 | R > S = B | |
C, Control group; S, Sensodyne®; B, BioRepair®; R, REALCaP®; SD, standard deviation; ∗, statistical significance (P < 0.05); NS, no significant difference.