Skip to main content

Table 3 Mean age and differences between advanced and delayed dental maturity groups according to cervical vertebral maturation stages

From: Correlation between dental and skeletal maturity in Korean children based on dental maturity percentile: a retrospective study

Parameter

CS 1

CS 2

CS 3

CS 4

CS 5

CS 6

n

Mean age

± SD

n

Mean age

± SD

n

Mean age

± SD

n

Mean age

± SD

n

Mean age

± SD

n

Mean age

± SD

Boys A

16

7.38 ± 0.69

15

8.41 ± 0.85

26

9.43 ± 1.15

22

11.02 ± 1.42

8

13.36 ± 0.62

6

14.56 ± 0.99

Boys D

12

8.11 ± 0.69

16

8.68 ± 0.93

30

9.81 ± 1.15

27

11.63 ± 1.04

6

13.26 ± 0.54

1

15.52

Difference

(p value)

0.004

NS

NS

NS

NS

NS

Girls A

12

7.40 ± 0.83

29

8.09 ± 0.85

15

8.69 ± 0.84

33

10.72 ± 1.50

14

12.86 ± 0.99

7

13.73 ± 0.94

Girls D

13

7.59 ± 0.62

14

7.84 ± 0.57

20

9.06 ± 1.14

33

11.13 ± 1.03

14

13.01 ± 1.33

6

14.48 ± 1.07

Difference

(p value)

NS

NS

NS

0.037

NS

NS

  1. CS, cervical stage; NS, no statistically significant differences; SD, standard deviation; A, advanced; D, delayed. p values from Mann-Whitney U test