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Table 7 Results of one-way ANOVA comparing the values of torsional play between different groups

From: Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

  Levene statistics (p value) F statistics p value Group 1 vs Group 2 Group 1 vs Group 3 Group 2 vs Group 3
Torsional play for a 0.019 × 0.025 archwire in a UR1 bracket 0.008 55.271 * < 0.001 4.42* (< 0.001) 2.41* (0.004) − 2.01* (0.012)
Torsional play for a 0.019 × 0.025 archwire in a UR3 bracket 0.003 57.566 * < 0.001 3.12* (< 0.001) − 1.67* (0.046) − 4.79* (0.001)
Torsional play for a 0.019 × 0.025 archwire in a UR4 bracket 0.007 23.613 * < 0.001 2.92* (< 0.001) 1.51* (0.045) − 1.41 (0.051)
Torsional play for a 0.021 × 0.025 archwire in a UR1 bracket 0.892 108.144* < 0.001 3.27* (< 0.001) 4.53* (< 0.001) 1.26* (0.005)
Torsional play for a 0.021 × 0.025 archwire in a UR3 bracket 0.754 20.019* < 0.001 2.09* (< 0.001) 1.01* (0.025) − 1.08* (0.017)
Torsional play for a 0.021 × 0.025 archwire in a UR4 bracket 0.871 68.683* < 0.001 1.90* (< 0.001) 3.75* (< 0.001) 1.85* (< 0.001)
  1. Group 1 Astar Orthodontics, Group 2 SIA, Group 3 Sweden & Martina, UR1 upper right central incisor bracket, UR3 upper right canine bracket, UR4 upper right first premolar bracket
  2. *Statistically significant for p < 0.05
  3. Mean difference in arc degrees (p value) from Tukey’s HSD post hoc test
  4. Mean difference in arc degrees (p value) from Games-Howell post hoc test
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