Findings

What do systematic reviews say?

3 questions · 3 findings · 2 reviews · Orthodontics · All outcomes

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No studies found 0 · 0%GRADE not reported 3 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Double primary (canine and first molar) tooth extraction vs Single primary (canine) tooth extraction

Effect of severity of PDC displacement towards the midline on the proportion of successful eruptions · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

1 finding from 1 review

Interventions for promoting the eruption of palatally displaced permanent canine teeth, without the need for surgical… 2021 · Cochrane All outcomes
12 to 48 months · By baseline sector (severity of displacement)
Tables 11-15 (Hadler-Olsen 2020; Bonetti 2010; Bonetti 2011): partial relationship between severity of medial displacement and successful eruption; e.g. at 18 months 17/75 (23%) sector 2 erupted vs 1/17 (6%) sector 3,…
3 studies
GRADE not reported

Extraction of the primary (baby) canine (single primary tooth extraction) vs No extraction (non-intervention control)

1 finding from 1 review

Interventions for promoting the eruption of palatally displaced permanent canine teeth, without the need for surgical… 2021 · Cochrane All outcomes
12 months · By baseline sector (severity of displacement)
Table 4 (Naoumova 2015): probability of successful eruption depended on displacement severity; sector 2 (mild) 14/19 (74%) erupted vs sector 4 0/10 erupted; data refer to 59 teeth (mITT).
1 study · 59 participants
GRADE not reported

Extraction of the primary maxillary canine vs no intervention

Improvement in the vertical position or angulation of the ectopic canine, measured from radiographs · Children with palatally displaced maxillary canines (at least 80% aged 10 to 13 years); trials with craniofacial syndromes or anomalies…

1 finding from 1 review

Extraction of primary (baby) teeth for unerupted palatally displaced permanent canine teeth in children 2012 · Cochrane All outcomes
At least 6 months follow-up after the intervention
Changes in the position of the displaced canine measured from radiographs, reported by both trials as medians (non-normal distribution): changes in the inclination of the canine to the midline, the distance of the…
2 studies
GRADE not reported