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Progress in Orthodontics

Table 1 Gro up data for pre-treatment ages and duration of treatment

From: Changes of occlusal plane inclination after orthodontic treatment in different dentoskeletal frames

 

Number

Female number

Male number

Pre-treatment age (years)

Duration of treatment

Mean ± SD

Mean ± SD

Skeletal class I

30

14

16

13.75 ± 1.54

2.12 ± 0.50

Skeletal class II

30

17

13

13.03 ± 1.41

2.28 ± 0.49

Skeletal class III

30

16

14

13.63 ± 1.44

2.07 ± 0.48

Total

90

47

43

13.47 ± 1.48

2.16 ± 0.49

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