Table 3.
Statistical comparison of mean (SD) surface roughness Rt values (μm) of RMGI specimens.
| Solution | baseline | 1 week | 2 weeks | 3 weeks | 4 weeks |
|---|---|---|---|---|---|
| As7 | 5.53 (0.28)a | 7.65 (2.55)A,a | 8.13 (2.47)AC,a | 7.96 (1.93)AC,a | 8.23 (4.19)AC,a |
| NaF7 | 5.53 (0.28)a | 11.60 (3.65)B,b | 11.75 (3.21)B,b | 11.16 (2.49)B,b | 10.41 (4.32)BC,b |
| As5 | 5.53 (0.28)a | 6.88 (2.18)A,a | 6.95 (2.55)A,a | 6.04 (1.92)A,a | 6.64 (2.23)A,a |
| NaF5 | 5.53 (0.28)a | 10.21 (2.85)B,b | 11.09 (4.32)BC,b | 10.13 (1.98)BC,b | 10.14 (2.12)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.