| Mean ± SD | Median IQR |
Group A |
|
|
Unpolished polymethyl methacrylate | 23.2 ± 3.7 | 22.7 3.8 |
Polished polymethyl methacrylate | 9.4 ± 0.7 | 9.34 1.08 |
Group B |
|
|
Unpolished bis-acrylic resin | 36.6 ± 8.2 | 35.9 11.4 |
Polished bis-acrylic resin* | 6.7 ± 0.5 | 6.9 0.6 |