Table 2 Comparison of water sorption of tested groups (Acrostone, Vertex, Valplast)
Variable | No of specimens | Mean | Standard of deviation | Df | P value |
|---|---|---|---|---|---|
Acrostone | 15 | 16.13 | ± 0.53 | 28 | > 0.19** |
Vertex | 15 | 15.89 | ± 0.46 | ||
Valplast (polyamide) | 15 | 13.33 | ± 0.28 | 28 | < 0.0001* |