Findings

What do systematic reviews say?

3 questions · 6 findings · 1 reviews · All outcomes

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No studies found 0 · 0%GRADE not reported 4 · 66.7%Very low 0 · 0%Low 2 · 33.3%Moderate 0 · 0%High 0 · 0%

Early treatment (two-phase) with headgear vs Early treatment (two-phase) with functional appliance

Final overjet · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in final overjet compared with early treatment (two-phase) with functional appliance; GRADE not reported.

2 findings from 1 review

Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of orthodontic treatment (phase II)
MD -0.21 [-0.57, 0.15]
2 studies · 225 participants
GRADE not reported
Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of phase I (growth modification phase)
MD 0.75 [0.21, 1.29]
2 studies · 271 participants
GRADE not reported

Early treatment (two-phase) with headgear vs Late treatment (one-phase in adolescence) with headgear

Final overjet · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in final overjet compared with late treatment (one-phase in adolescence) with headgear (low certainty).

2 findings from 1 review

Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of orthodontic treatment (phase II)
MD -0.22 [-0.56, 0.12]
2 studies · 238 participants
Low
Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of phase I (growth modification phase)
MD -1.07 [-1.63, -0.51]
2 studies · 278 participants
GRADE not reported

Early treatment (two-phase: phase 1 in childhood, phase 2 in adolescence) with functional appliance vs Late treatment (one-phase in adolescence) with functional appliance

Final overjet · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase: phase 1 in childhood, phase 2 in… led to lower final overjet compared with late treatment (one-phase in adolescence) with functional appliance; GRADE not reported.

2 findings from 1 review

Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of phase I (growth modification phase)
MD -4.17 [-4.61, -3.73]
3 studies · 432 participants
GRADE not reported
Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes
End of orthodontic treatment (phase II)
MD 0.21 [-0.1, 0.51]
3 studies · 343 participants
Low