Variation of microhardness with time of toothpaste appli-cation in group (Experiment 1)
| mean ± SD | SE | Min | Max | p-value | |
|---|---|---|---|---|---|
| Base | 338.59 ± 14.60 | 4.62 | 311.74 | 355.06 | |
| After 4 weeks | 360.67 ± 21.04 | 6.65 | 330.80 | 392.88 | 0.0218 |
| After 8 weeks | 364.03 ± 18.27 | 5.78 | 338.38 | 396.58 | 0.0284 |
p-value by Wilcoxon test.
*p<0.05 by between base and after.
