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Table 3 Descriptive statistics of molar movement rate (mm/month) as well as the p-values of significance tests

From: Evaluation of piezocision and laser-assisted flapless corticotomy in the acceleration of canine retraction: a randomized controlled trial

Time

PG (n = 17)

LAFCG (n = 17)

PG Vs LAFCG

Experimental side

Control side

Mean Diff (95% CI)

P-Value†

Experimental side

Control side

Mean Diff (95% CI)

P-Value†

Mean Diff (95% CI)

P-Value ††

Mean

SD

Mean

SD

Mean

SD

Mean

SD

T0-T1 (1st month)

0.65

0.26

0.77

0.24

−0.11 (−0.26, 0.02)

0.103

0.61

0.20

0.69

0.20

−0.08 (− 0.20, 0.03)

0.159

0.04 (− 0.12, 0.21)

0.589

T1-T2 (2nd month)

0.53

0.24

0.66

0.25

−0.13 (− 0.28, 0.01)

0.074

0.50

0.21

0.65

0.27

−0.14 (− 0.29, 0.01)

0.067

0.02 (− 0.13, 0.19)

0.750

T2-T3 (3rd month)

0.47

0.22

0.51

0.23

−0.04 (− 0.12, 0.02)

0.196

0.49

0.20

0.54

0.21

−0.05 (− 0.14, 0.03)

0.236

− 0.02 (− 0.18, 0.14)

0.796

T3-T4 (4th month)

0.28

0.09

0.32

0.11

−0.03 (− 0.13, 0.05)

0.322

0.32

0.22

0.33

0.19

−0.00 (− 0.15, 0.14)

0.876

− 0.03 (− 0.26, 0.19)

0.721

  1. †: Paired t test, ††: two-sample t test, *Significant at P < 0.05, **Significant at P < 0.01, ***Significant at P < 0.001, PG Piezocision group, LAFCG Laser-assisted flapless corticotomy group, SD standard deviation, Mean Diff mean difference, CI Confidence interval