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Progress in Orthodontics

Table 1 Demographics for the treated and untreated Class II groups

From: Mechanisms of Class II correction induced by the crown Herbst appliance as a single-phase Class II therapy: 1 year follow-up

 

Age at T1, years

Age at T2, years

Age at T3, years

 

Number

Female

Male

Mean (SD)

Mean (SD)

Mean (SD)

cHerbst group

40

20

20

13.6 (1.3)

14.8 (1.4)

15.9 (1.4)

Control group

18

7

11

13.9 (1.6)

14.7 (1.4)

15.7 (1.4)

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