Table 2.
Mean (and standard deviation) amount of phosphate ions released (µg/cm2) from restorative materials following pH reduction from 6.8 to 4 at different time points of storage.
| Materials | 24 hours | ∗ P-value | 48 hours | ∗ P-value | 6 Months | ∗ P-value |
|---|---|---|---|---|---|---|
| Activa BioActive | 3.66 ± 0.50 c | 0.0001 | 4.94 ± 0.16 d | 0.0001 | 7.70 ± 0.73 e | 0.0001 |
| Cention N | 3.98 ± 0.16 c | 5.43 ± 0.17 d | 8.44 ± 0.88 e | |||
| RMGI | 5.84 ± 0.50 b | 4.68 ± 0.19 bd | 5.18 ± 0.54 b | |||
| Z250 | 0.07 ± 0.15 a | 0.23 ± 0.27 a | 0.10 ± 0.18 a |
∗One-way ANOVA. Similar lowercase letters show no difference according to Tukey's HSD test (P>0.05).