Table 3
Microhardness Change on Composite Resin Surface after Treatment for 30 Minutes (Unit: VHN)
| Group |
n |
Treatment |
Difference** |
|
| Before (0 min) |
After (30 min) |
| Samdasoo* |
12 |
46.53±1.36 |
44.90±2.09 |
−1.63±2.47a |
| Orange juice* |
12 |
45.71±2.88 |
37.52±1.72 |
−8.19±1.36c |
| Oriental dressing* |
12 |
45.64±2.33 |
37.02±2.97 |
−8.62±1.09c |
| Balsamic dressing* |
12 |
46.37±3.53 |
37.20±2.31 |
−9.17±1.63c |
| Lemon-garlic dressing* |
12 |
45.86±2.67 |
36.25±2.53 |
−9.61±1.16c |
| Lemon-garlic dressing ＋3% Ca* |
12 |
47.23±1.10 |
40.47±2.18 |
−6.76±1.23b |
Values are presented as mean±standard deviation.
The same letter indicates no significant difference by Tukey’s test at a=0.05.
*p<0.05, by paired t-test. **p<0.05, by one-way ANOVA.
