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Table 4 Descriptive statistics of the canine rotation rate (degrees/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)

8.00

2.82

6.93

2.29

1.06 (−0.09, 2.22)

0.070

6.88

3.07

6.11

2.20

0.76 (−0.36, 1.89)

0.170

1.11 (−0.98, 3.22)

0.287

T1-T2 (2nd month)

6.54

2.88

6.19

2.43

0.34 (−0.51, 1.20)

0.403

5.82

2.26

5.59

2.53

0.23 (−0.57, 1.04)

0.544

0.71 (−1.11, 2.54)

0.433

T2-T3 (3rd month)

5.42

2.14

5.14

2.30

0.28 (−0.52, 1.09)

0.461

5.00

2.04

4.75

2.23

0.24 (−0.54, 1.04)

0.517

0.42 (−1.13,1.99)

0.580

T3-T4 (4th month)

3.22

1.44

2.82

0.61

0.40 (−0.61, 1.41)

0.355

3.39

1.62

2.53

0.99

0.86 (−1.23, 2.95)

0.316

−0.16 (−2.25, 1.91)

0.859

  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