Table 1 Statistical analysis of the results of the surface roughness and friction resistance tests by ANOVA
Friction resistance | Surface roughness | |||||||
|---|---|---|---|---|---|---|---|---|
df | Mean square | F | Significance | df | Mean square | F | Significance | |
Archwire | 1 | 0.067 | 1.588 | 0.215 | 1 | 3.799 | 0.037 | 0.850 |
Test environment | 1 | 0.104 | 2.471 | 0.125 | 1 | 23.55 | 0.228 | 0.638 |
Interaction (archwire × environment) | 1 | 0.032 | 0.763 | 0.388 | 1 | 145.81 | 1.41 | 0.249 |
Error | 37 | 0.42 | 20 | 103.40 | ||||
Total | 41 | 24 | ||||||
Corrected total | 40 | 23 | ||||||