Table 1.
Surface concentration of fluoride in relation to the storage medium.
| medium I | medium II | medium III | medium IV | |||||
| wtF(%) | SD | wt F(%) | SD | wt F(%) | SD | wt F(%) | SD | |
| FT | 10.0a,b,c,d | 0.56 | 3.8a,b,c,d | 0.25 | 4.8a,b.c.d | 0.20 | 15.6a,b,c,d | 0.40 |
| FII | 7A,B,C,D | 0.25 | 4.6A,B,D | 0.22 | 4.6A,C,D | 0.16 | 7.8A,B,C,D | 0.26 |
| FVIII | 10.4x,y.w.z | 0.30 | 4.8x,y,w,z | 0.26 | 6.4x,y,w,z | 0.39 | 11.5x,y,w,z | 0.52 |
| FIX | 10.1X,Y,W,Z | 0.49 | 8.2X,Y,W,Z | 0.56 | 9.6X,Y,W | 0.39 | 9.5X,Y,Z | 0.42 |
| KN | 7.61,2,3,4 | 0.39 | 2.61,2,4 | 0.46 | 2.51,3,4 | 0.35 | 81,2,3,4 | 0.65 |
| HSF | 1.4I,III,IV | 0.39 | 1.2II,IV | 0.27 | 1I,III,IV | 0.26 | 2.5I,II,III,IV | 0.48 |
The F concentrations (wt%); n = 3 disks for media I, II, III, n = 5 disks for medium IV; SD; same superscripts indicate average values with statistically significant differences (p < 0.001);