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Table 2 Descriptive statistics of the different linear and angular longitudinal differences

From: Three-dimensional analysis of miniscrew position changes during bone-borne expansion in young and late adolescent patients

 

Right side

Left side

p value

Frontal view

 Anterior miniscrews—head to POP distance (mm)

3.31 ± 1.48

4.26 ± 1.95

0.071

 Anterior miniscrews—tip to POP distance (mm)

2.61 ± 1.16

2.16 ± 1.56

0.259

 Posterior miniscrews—head to POP distance (mm)

4.29 ± 1.58

4.03 ± 1.70

0.578

 Posterior miniscrews—tip to POP distance (mm)

1.32 ± 2.14

− 0.48 [− 1.81, 2.01]

0.182

 Posterior miniscrews—angle to occlusal plane (°)

3.21 ± 6.78

5.05 ± 5.68

0.264

 Anterior miniscrews—angle to occlusal plane (°)

− 1.86 ± 3.08

− 4.90 [− 8.42, − 2.03]

0.026*

Lateral view

   

 Anterior miniscrews—angle to occlusal plane (°)

− 0.28 ± 4.54

0.40 ± 5.60

0.522

 Posterior miniscrews—angle to occlusal plane (°)

0.94 [− 0.93, 5.82]

0.48 [− 3.50, 8.42]

1.000

  1. POP, perpendicular to occlusal plane. Results are expressed as Mean ± Standard Deviation or Median [Interquartile Range]. P value: paired t test, or Wilcoxon signed rank test, p value. *statistically significant