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Evidence found and GRADE certainty

4 questions · 4 findings · 1 reviews · Oral Health

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No studies found 0 · 0%GRADE not reported 3 · 75%Very low 1 · 25%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Lower lip bumper vs No active treatment (control)

Lower incisors to mandible (position, mm) at 9 months · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Lower lip bumper led to higher lower incisors to mandible at 6 months compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

Lower lip bumper vs No active treatment (control)

Size of the lower jaw (arch length) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Lower lip bumper led to higher size of the lower jaw (mandibular arch length) at 6 months compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

Lower lip bumper vs No active treatment (control)

Lower molars to mandible (relationship of lower back teeth to the mandible) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Lower lip bumper led to lower lower molars to mandible at 6 months compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

Lower lip bumper vs No active treatment (control)

Amount of crowding · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

It is very uncertain whether lower lip bumper changes amount of crowding (change in mandibular incisor crowding) at 6 months compared with no active treatment (control) (very low certainty).

1 finding from 1 review