| – | t-Test | P-Value | Sig | |
|---|---|---|---|---|
| Impact strength | Group la and Group lla | 11.098 | 0.000 | S |
| Group lb and Group llb | 8.220 | 0.000 | S | |
| Thermal conductivity | Group la and Group lla | 1.031 | 0.316 | NS |
| Group lb and Group llb | 0.049 | 0.961 | NS | |
| Color stability | Group la and Group lla | 1.741 | 0.099 | NS |
| Group lb and Group llb | 0.746 | 0.465 | NS | |