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Progress in Orthodontics

Table 1 Gender and age distribution of the patients in the two groups

From: Root resorption after leveling with super-elastic and conventional steel arch wires: a prospective study

 

Males

Females

All

Mean age (years)

Range (years)

SD

SE group

22

19

41

13.3

11 to 16

1.5

SS group

18

23

41

13.7

11 to 22

2.4

All

40

42

82

13.5

11 to 22

2.0

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