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Evidence found and GRADE certainty

64 questions · 69 findings · 6 reviews · Orthodontics

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No studies found 33 · 47.8%GRADE not reported 28 · 40.6%Very low 6 · 8.7%Low 0 · 0%Moderate 2 · 2.9%High 0 · 0%

Orthodontic treatment without extraction of permanent teeth vs No treatment (or delayed treatment)

Dento-occlusal results of treatment, measured with the PAR index · Children (80% aged <= 16 years) with a Class II division 2 malocclusion (deep bite and retroclined upper front teeth)

The review found no eligible studies for this question.

1 finding from 1 review

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem traction bow, mandibular headgear, ORTA, reverse Twin Block, Reverse Forsus) vs no treatment

Overjet · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem… probably leads to higher overjet compared with no treatment (moderate certainty).

1 finding from 1 review

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem traction bow, mandibular headgear, ORTA, reverse Twin Block, Reverse Forsus) vs no treatment

Wits appraisal · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem… led to higher wits appraisal compared with no treatment; GRADE not reported.

1 finding from 1 review

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem traction bow, mandibular headgear, ORTA, reverse Twin Block, Reverse Forsus) vs no treatment

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem… probably leads to higher ANB compared with no treatment (moderate certainty).

1 finding from 1 review