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Table 1 Descriptive statistics and matching of the groups

From: RFA measurements of survival midpalatal orthodontic mini-implants in comparison to initial healing period

 

IG11

LT11

IG9

LT9

Statistical test

Significance

Gender

F

M

F

M

F

M

F

M

Chi-square

0.696 n.s.

10

10

6

12

8

11

12

9

Age (years)

15.61 ± 6.96

16.77 ± 7.75

15.54 ± 7.31

16.21 ± 3.89

Kruskal–Wallis test

0.401 n.s.

Implants measured

20

18

19

21

  

Treatment time (years)

 

3.17 ± 0.96

 

2.84 ± 1.25

t test

0.067 n.s.

Vertical bone height

4.87 ± 0.86

4.59 ± 0.87

5.28 ± 1.25

4.62 ± 1.10

ANOVA

0.237 n.s.