Table 3.
Frequencies and percentages of marginal discoloration scores in both groups
| Follow-up | Marginal discoloration | Nano composite | Emax | p-value | |
|---|---|---|---|---|---|
| Baseline | Alpha | n | 25 | 25 | 1ns |
| % | 100.0% | 100.0% | |||
| Bravo 1 | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| Bravo 2 | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| Charlie | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| Dropout | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| 6 months | Alpha | n | 25 | 20 | 0.021* |
| % | 100.0% | 80.0% | |||
| Bravo 1 | n | 0 | 2 | ||
| % | 0.0% | 8.0% | |||
| Bravo 2 | n | 0 | 3 | ||
| % | 0.0% | 12.0% | |||
| Charlie | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| Dropout | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| 1 year | Alpha | n | 21 | 17 | 0.160ns |
| % | 84.0% | 68.0% | |||
| Bravo 1 | n | 2 | 1 | ||
| % | 8.0% | 4.0% | |||
| Bravo 2 | n | 0 | 3 | ||
| % | 0.0% | 12.0% | |||
| Charlie | n | 0 | 1 | ||
| % | 0.0% | 4.0% | |||
| Dropout | n | 2 | 3 | ||
| % | 8.0% | 12.0% | |||
| 2 years | Alpha | n | 21 | 17 | 0.194ns |
| % | 84.0% | 68.0% | |||
| Bravo 1 | n | 0 | 0 | ||
| % | 0.0% | 0.0% | |||
| Bravo 2 | n | 2 | 4 | ||
| % | 8.0% | 16.0% | |||
| Charlie | n | 0 | 1 | ||
| % | 0.0% | 4.0% | |||
| Dropout | n | 2 | 3 | ||
| % | 8.0% | 12.0% | |||
| p -value | 1ns | 1ns | |||
Values with different superscript letters within the same vertical column are significantly different *; significant (p ≤ 0.05) ns; non-significant (p > 0.05)