Table 2.
F, PO4 and Ca ion release and strength of several restorative materials*
| F ion release rate (long-term) (µg/h·cm2) | PO4 ion release (mmol/L) | Ca ion release (mmol/L) | Flexural strength (MPa) | |
|---|---|---|---|---|
| Nanocomposite with 20% CaF2, 20% DCPA, and 25% whiskers |
0.29 ± 0.10 (after 70 days) |
1.74 ± 0.19 | 0.03 ± 0.01 | 100 ± 7 |
| TPH hybrid composite | 0 | 0 | 0 | 108 ± 19 |
| Ketac-Fil [14] | 0.1 (50 d) |
54 ± 6 [24] | ||
| Vitremer [14] | 0.04 (50 d) |
60 ± 6 [24] | ||
| Resin filled with 23% traditional CaF2 particles [17] |
0.05 (70 d) |
Not reported |
*
For Ketac-Fil and Vitremer, the sustained (or long-term) F release rate was calculated from Table 4 in Ref. 14. For the resin filled with 23% of a commercial CaF2 powder, the F release rate was estimated from Fig. 1B in Ref. 17. When the composite contained 20% CaF2 nanopowder and 45% whiskers, its flexural strength was increased to 121 ± 10 MPa.