Research Article
Fluoride Release of Fresh and Aged Glass Ionomer Cements after Recharging with High-Fluoride Dentifrice
Table 2
Summary of results. Mean (±SD) of F (μg F/ml) release from fresh and aged restorative materials before and after the treatments according to time.
| | Experimental condition | Material | Treatment | Time (days) | | 1 | 5 | 10 | 15 |
| | Fresh before treatments | Composite resin | None (n = 15 for each material) | 0.08 (0.07) | 0.04 (0.02) | 0.03 (0.01) | 0.03 (0.01) | | Resin-modified GIC | 15.88 (4.36) | 8.70 (0.98) | 8.83 (0.91) | 3.58 (0.51) | | Conventional GIC | 8.83 (1.31) | 5.09 (0.64) | 4.36 (0.14) | 2.22 (0.22) | | High-viscosity GIC | 7.35 (1.58) | 4.46 (0.40) | 4.46 (0.38) | 1.80 (0.17) |
| | Fresh after treatments | Composite resin | 0 μg F/g (n = 5) | 0.50 (0.16) | 0.07 (0.02) | 0.05 (0.02) | 0.04 (0.01) | | 1,100 μg F/g (n = 5) | 7.76 (1.12) | 0.06 (0.02) | 0.04 (0.01) | 0.04 (0.01) | | 5,000 μg F/g (n = 5) | 18.71 (3.29) | 0.05 (0.01) | 0.03 (0.01) | 0.04 (0.01) | | Resin-modified GIC | 0 μg F/g (n = 5) | 4.00 (0.67) | 3.49 (0.51) | 2.43 (0.26) | 1.01 (0.14) | | 1,100 μg F/g (n = 5) | 18.35 (3.76) | 5.83 (1.06) | 5.47 (1.03) | 1.74 (0.09) | | 5.000 μg F/g (n = 5) | 31.05 (3.98) | 5.94 (1.23) | 5.63 (1.12) | 1.79 (0.11) | | Conventional GIC | 0 μg F/g (n = 5) | 2.70 (0.75) | 2.41 (0.86) | 1.93 (0.37) | 0.71 (0.15) | | 1,100 μg F/g (n = 5) | 8.69 (2.06) | 2.73 (0.53) | 2.72 (0.65) | 0.87 (0.13) | | 5,000 μg F/g (n = 5) | 29.98 (4.21) | 3.39 (0.42) | 3.40 (0.55) | 1.24 (0.10) | | High-viscosity GIC | 0 μg F/g (n = 5) | 2.48 (0.33) | 2.18 (0.89) | 1.75 (0.24) | 0.65 (0.12) | | 1,100 μg F/g (n = 5) | 8.21 (2.11) | 2.83 (0.74) | 2.66 (0.57) | 0.84 (0.12) | | 5,000 μg F/g | 28.40 (3.85) | 3.38 (0.67) | 3.42 (0.79) | 1.17 (0.16) |
| | Aged after treatments | Composite resin | 0 μg F/g (n = 5) | 0.42 (0.26) | 0.06 (0.01) | 0.05 (0.01) | 0.04 (0.01) | | 1,100 μg F/g (n = 5) | 0.78 (0.17) | 0.04 (0.01) | 0.10 (0.04) | 0.04 (0.01) | | 5,000 μg F/g (n = 5) | 4.45 (2.56) | 0.04 (0.01) | 0.05 (0.01) | 0.04 (0.01) | | Resin-modified GIC | 0 μg F/g (n = 5) | 3.65 (0.58) | 0.51 (0.08) | 0.42 (0.06) | 0.23 (0.07) | | 1,100 μg F/g (n = 5) | 6.62 (1.20) | 0.62 (0.03) | 0.46 (0.08) | 0.30 (0.05) | | 5,000 μg F/g (n = 5) | 12.06 (4.53) | 0.90 (0.19) | 0.64 (0.24) | 0.43 (0.10) | | Conventional GIC | 0 μg F/g (n = 5) | 2.90 (1.28) | 0.27 (0.06) | 0.20 (0.05) | 0.13 (0.04) | | 1.100 μg F/g (n = 5) | 4.66 (0.62) | 0.33 (0.04) | 0.22 (0.03) | 0.14 (0.05) | | 5.000 μg F/g (n = 5) | 10.29 (3.12) | 0.44 (0.07) | 0.30 (0.04) | 0.21 (0.03) | | High-viscosity GIC | 0 μg F/g (n = 5) | 3.42 (0.34) | 0.57 (0.08) | 0.32 (0.06) | 0.17 (0.02) | | 1.100 μg F/g (n = 5) | 4.85 (1.02) | 0.63 (0.13) | 0.41 (0.10) | 0.24 (0.05) | | 5.000 μg F/g (n = 5) | 6.04 (0.94) | 0.85 (0.15) | 0.53 (0.09) | 0.33 (0.06) |
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