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Evidence found and GRADE certainty

2 questions · 2 findings · 1 reviews · Orthodontics

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Fixed bonded Hyrax appliance followed by U-bow activator therapy vs no treatment

Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…

Fixed bonded Hyrax appliance followed by U-bow activator therapy showed no clear difference in canine expansion compared with no treatment; GRADE not reported.

1 finding from 1 review
  • Orthodontic treatment for posterior crossbites 2021 · Cochrane All outcomes
    12 months after start of treatment
    U-bow activator 3.6 mm vs untreated 1 mm; P<0.001 (no SD reported); significant in favour of treatment
    1 study · 66 participants
    GRADE not reported

Fixed bonded Hyrax appliance followed by U-bow activator therapy vs no treatment

Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…

Fixed bonded Hyrax appliance followed by U-bow activator therapy showed no clear difference in molar expansion compared with no treatment; GRADE not reported.

1 finding from 1 review
  • Orthodontic treatment for posterior crossbites 2021 · Cochrane All outcomes
    12 months after start of treatment
    U-bow activator 5.1 mm vs untreated 0.8 mm; P<0.001 (no SD reported); significant in favour of treatment
    1 study · 66 participants
    GRADE not reported