Table 2.
Statistical comparison of mean (SD) surface roughness Ra values (μm) of RMGI specimens.
| Solution | baseline | 1 week | 2 weeks | 3 weeks | 4 weeks |
|---|---|---|---|---|---|
| As7 | 0.70 (0.28)a | 0.83 (0.05)A,a | 0.91 (0.07)AC,a | 0.92 (0.17)AC,a | 0.96 (0.16)AC,a |
| NaF7 | 0.70 (0.28)a | 1.60 (0.10)B,b | 1.78 (0.14)B,b | 1.81 (0.19)B,b | 1.77 (0.35)B,b |
| As5 | 0.70 (0.28)a | 0.78 (0.22)A,a | 0.74 (0.17)A,a | 0.56 (0.08)A,a | 0.56 (0.12)A,a |
| NaF5 | 0.70 (0.28)a | 1.49 (0.13)B,b | 1.50 (0.14)BC,b | 1.65 (0.07)BC,b | 1.59 (0.17)BC,b |
Superscripts with different letters indicates statistically significant difference (P < 0.008).
A, B, C Superscripts with uppercase letters are used for comparison between solution in the same column.
a, b Superscripts with lowercase letters are used for comparison between time within the same row.
As5: pH 5 artificial saliva, As7: pH 7 artificial saliva, NaF5: pH 5 artificial saliva containing 0.2% NaF, NaF7: pH 7 artificial saliva containing 0.2% NaF.