Amount of crowding (number of children with crowding, mandible) after 1 year · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
It is very uncertain whether eruption guidance appliance changes amount of crowding (number of children with crowding, mandible)… compared with no active treatment (control) (very low certainty).
1 finding from 1 review
Crossbite correction · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Lower incisor inclination (lingual tipping and retrusion) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
Self-ligating brackets showed no clear difference in lower incisors to mandible (inclination, degrees) compared with conventional brackets; GRADE not reported.
1 finding from 1 review
Amount of tooth movement / reduction in crowding at 12 weeks · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
It is very uncertain whether coaxial nickel-titanium archwire changes amount of tooth movement / reduction in crowding at 12 weeks compared with nickel-titanium archwire (very low certainty).
1 finding from 1 review
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
Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Fixed tooth-borne expansion (quad-helix) may leads to higher canine expansion (inter-canine distance) compared with removable tooth-borne expansion (expansion plate) (low certainty).
1 finding from 1 review
Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Quad-helix plus multi-bracket appliance showed no clear difference in molar expansion compared with expansion arch plus multi-bracket appliance; GRADE not reported.
1 finding from 1 review
Length of treatment · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Fixed tooth-borne expansion (quad-helix) probably leads to lower length of treatment compared with removable tooth-borne expansion (expansion plate) (moderate certainty).
1 finding from 1 review
Stability of crossbite correction (relapse of molar expansion) · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Time to alignment · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
Vibrational appliance with fixed appliances showed no clear difference in time to alignment (days) compared with fixed appliances only / no vibrational appliance (control); GRADE not reported.
1 finding from 1 review
MD -3.70 [-26.29, 18.89]
2 studies
GRADE not reported
Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Amount of crowding (lower incisor crowding) at 10 weeks · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
It is very uncertain whether self-ligating brackets changes amount of crowding (lower incisor crowding) at 10 weeks compared with conventional brackets (very low certainty).
1 finding from 1 review
Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Crossbite correction · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Initiation of white spot lesions (WSL), visual-tactile assessment · Patients of any age (11-40 years) receiving comprehensive/fixed orthodontic treatment with fixed appliances
For resin-based sealants, fluoride release did not significantly change WSL initiation (RR 0.71, wide CI); subgroup not separately GRADE-rated.
1 finding from 1 review
Stability of crossbite correction (relapse of molar expansion) · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
Crossbite correction · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Fixed tooth-bone-borne expansion showed no clear difference in crossbite correction compared with fixed tooth-borne expansion (Hyrax) (low certainty).
1 finding from 1 review
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
Harms (orthodontically-induced inflammatory root resorption) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review