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Table 3 Results of one-way ANOVA, divided by each group, comparing slot measurements for different bracket types

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

 

Levene statistics (p value)

F statistics

p value

UR1 vs UR3

UR1 vs UR4

UR3 vs UR4

 

Group 1

 Slot height

0.153

3.20

0.054

0.0004 (0.054)

0.0001 (0.843)

− 0.0003 (0.167)

 Slot width (max)

0.334

140.01*

< 0.001

0.007* (< 0.001)

0.0045* (< 0.001)

− 0.0025* (< 0.001)

 Slot width (min)

0.774

4.98*

0.013

0.0006 (0.241)

0.0006 (0.299)

− 0.0012* (0.009)

 

Group 2

 Slot height

0.730

3.20

0.057

0.0000 (0.923)

− 0.0003 (0.138)

− 0.0004 (0.065)

 Slot width (max)

0.028

20.04*

< 0.001

0.0044* (< 0.001)

0.0004 (0.889)

− 0.0040* (0.005)

 Slot width (min)

< 0.001

3.15

0.059

0.0007* (0.004)

0.0003 (0.662)

− 0.0004 (0.402)

 

Group 3

 Slot height

0.290

6.47*

0.005

− 0.0005* (0.007)

− 0.0000 (0.892)

0.0004* (0.021)

 Slot width (max)

0.046

45.20*

< 0.001

− 0.0032* (0.012)

0.0053* (< 0.001)

0.0086* (< 0.001)

 Slot width (min)

0.131

47.03*

< 0.001

− 0.0041* (< 0.001)

0.0034* (0.001)

0.0075* (< 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 inch (p value) from Tukey’s HSD post hoc test
  4. Mean difference in inch (p value) from Games-Howell post hoc test