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Table 1 Statistical analysis of the results of the surface roughness and friction resistance tests by ANOVA

From: Effect of chlorhexidine-containing prophylactic agent on the surface characterization and frictional resistance between orthodontic brackets and archwires: an in vitro study

  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