Success of surgery (eruption of the canine crown sufficient for orthodontic alignment, without repeated surgery) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
Open surgical exposure showed no clear difference in success of surgery (eruption of the canine crown sufficient for… compared with closed surgical exposure (low certainty).
1 finding from 1 review
Treatment time: length of time in the operating theatre (first incision to final suture) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
It is very uncertain whether open surgical exposure changes treatment time: length of time in the operating theatre (first… compared with closed surgical exposure (very low certainty).
1 finding from 1 review
Gum health: radiographic crestal bone level · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
Open surgical exposure showed no clear difference in gum health: radiographic crestal bone level compared with closed surgical exposure; GRADE not reported.
1 finding from 1 review
Aesthetics of the treated canine compared with the untreated contralateral canine · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
1 finding from 1 review
Clinical attachment level (CAL) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
Open surgical exposure showed no clear difference in gum health: clinical attachment level (CAL) compared with closed surgical exposure (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
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…
1 finding from 1 review
Rate of maxillary molar intrusion for correction of anterior open bite · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review
Two studies (62 participants), not pooled. Abellan 2021: no significant difference in molar intrusion at 3 months (1.25 vs 1.72 mm) or 6 months (1.09 vs 1.28 mm), nor rate per month. Hasan 2022: increased intrusion…
2 studies · 62 participants
GRADE not reported
Mandibular ramus growth · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
Reduction or treatment of obstructive sleep apnoea syndrome (OSAS) or upper airway resistance syndrome (UARS) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
The review found no eligible studies for this question.
1 finding from 1 review
Mandibular ramus growth · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
Cephalometric data (SNA, Co-A, SNB, Ar-Go, Ar.GoMe, Co-Gn, ANB) were reported to be not significantly different between groups; effects were dento-alveolar rather than skeletal. No pooled estimate (Almeida 2005).
1 study
GRADE not reported
Alteration of hyperdivergent growth pattern · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
The angles (SN.GoGN, SN.PP, NS.Gn) and linear measures (AFA, AFP, AFAI) did not demonstrate significant alterations between groups; interventions did not produce significant changes in the skeletal maxillary or…
1 study
GRADE not reported
Expansion of the upper and lower jaw · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
Patient satisfaction · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
The review found no eligible studies for this question.
1 finding from 1 review
Signs and symptoms of atypical swallowing and speech production disturbances · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
The review found no eligible studies for this question.
1 finding from 1 review
Signs and symptoms of respiratory disease · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
The review found no eligible studies for this question.
1 finding from 1 review
Side effects / adverse effects (unilateral crossbite; transverse problems) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
Orthodontic and orthopaedic treatment for anterior open bite in children 2014 · Cochrane All outcomesAbout 4 months (treatment interrupted early)
"After 4 months the open bite was observed to close in the magnet group, but in four out of these ten patients, transverse problems were observed (unilateral crossbite) which led to the interruption of the treatment…
1 study · 10 participants
GRADE not reported
Position of the incisors (upper incisor inclination) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review
The angulation of the upper incisors with the palatal plane (1/ANSPNS) decreased on average 0.3 (SD 4.6) degrees in the control group, whereas in the treated group the mean retrusion was 4 (SD 4.6) degrees, P < 0.01.…
1 study
GRADE not reported
Alteration of hyperdivergent growth pattern · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or…
1 finding from 1 review