Molar expansion · 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 molar expansion (inter-molar distance) 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 lingual arch led to lower lower molars to mandible at 1 year compared with no active treatment (control); GRADE not reported.
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-borne expansion (quad-helix) probably leads to higher crossbite correction compared with removable tooth-borne expansion (expansion plate) (moderate certainty).
1 finding from 1 review
Overall treatment time wearing orthodontic appliances · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
0 studies
No studies found
Amount of crowding (change in mandibular crowding) at 8 weeks · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
It is very uncertain whether multistranded stainless steel archwire changes amount of crowding (change in mandibular crowding) at 8 weeks compared with stainless steel archwire (very low certainty).
1 finding from 1 review
Number of participants referred for surgical exposure of the PDC · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)
It is very uncertain whether extraction of the primary (baby) canine (single primary tooth… changes number of participants referred for surgical exposure of the PDC compared with no extraction (non-intervention control) (very low certainty).
1 finding from 1 review
Lower incisors to mandible (relationship of lower front teeth to the mandible) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
Cervical pull headgear showed no clear difference in lower incisors to mandible at 2 years compared with minor interceptive procedures (control); GRADE not reported.
1 finding from 1 review
Molar and 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
Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
The review found no eligible studies for this question.
1 finding from 1 review
Not measured (SoF 7)
0 studies
No studies found
Harms (discomfort, periodontal/gingival health, 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
No evidence of differences between self-ligating and conventional brackets for discomfort (Atik 2014, Miles 2010), plaque/gingival index and probing depth (Atik 2014), or maxillary incisor root resorption (Aras 2018).…
3 studies
GRADE not reported
Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
The review found no eligible studies for this question.
1 finding from 1 review
Not measured (SoF 6)
0 studies
No studies found
Fixation and stabilisation (splint type/duration) vs Different splint, no splint, or different splinting duration
Outcome not reported · People with avulsed and replanted permanent (front) teeth
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
0 studies
No studies found
Number of participants with more severe DLs (severity of DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
The review found no eligible studies for this question.
1 finding from 1 review
Tooth survival · People with avulsed and replanted permanent (front) teeth
It is very uncertain whether hyperbaric oxygen (following replantation) changes tooth survival at 12 months compared with control (very low certainty).
1 finding from 1 review
Number of participants with more severe DLs (severity of DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
The review found no eligible studies for this question.
1 finding from 1 review
Number of participants with more severe DLs (severity of DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
The review found no eligible studies for this question.
1 finding from 1 review
Adverse effects · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
The review found no eligible studies for this question.
1 finding from 1 review
Adverse effects · People with avulsed and replanted permanent (front) teeth
1 finding from 1 review
Day 2012 used a formal methodology to identify and report adverse effects, with none identified.
1 study · 22 participants
GRADE not reported
Tooth survival · People with avulsed and replanted permanent (front) teeth
It is very uncertain whether thymosin alpha 1 (10-minute soak prior to replantation) changes tooth survival at 12 months compared with control (saline) (very low certainty).
2 findings from 1 review
Number of participants with more severe DLs (severity of DLs) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
The review found no eligible studies for this question.
1 finding from 1 review