Table 2. Reduction (%) of enamel and root dentine demineralization according to the treatments compared with their respective negative controls.
| Treatmentα (ppm F) | *Reduction of demineralization (%) | |
|---|---|---|
| Enamel vs control | Dentine vs control | |
| 0 (control) | - | - |
| 150 | 46.8 | 21.3 |
| 450 | 60.9** | 36.9 |
| 1,350 | 76.1 | 58.8** |
* the calculation was relative to the respective control (%SHL with 0 ppm, 0% of reduction)
**Similar effect, about 60%, is observed with 450 ppm F for enamel and with 1,350 ppm F for dentine
α Concentrations to simulate brushing with toothpaste from low to high F concentration, considering the dilution (1:3) by saliva.