Findings

What do systematic reviews say?

2 questions · 2 findings · 2 reviews · Oral and maxillofacial surgery

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No studies found 0 · 0%GRADE not reported 2 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Second molar at Nolla developmental stage 6-7 at extraction vs Second molar at later Nolla stages at extraction

Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

One study found mandibular Nolla stage 6-7 associated with better space closure (OR 55.1; single study; not GRADE-rated).

1 finding from 1 review

Spontaneous space closure after extraction of permanent first molars in children and adolescents: a systematic review… 2024 All outcomes
Until eruption of the permanent second molar (median follow-up 4.0 years) · University clinics and hospitals in 8 countries (children/adolescents <18 years) · Mandible
OR 55.1 [3.0, at least 100.0]
1 study
GRADE not reported

Early extraction of a compromised first permanent molar vs Non-extraction (retained first permanent molar) or contralateral non-extraction side

Spontaneous space closure · Children aged 5 to 15 years with a compromised first permanent molar

Early extraction of a compromised first permanent molar is followed by variable spontaneous closure of the post-extraction space (about 45.5% to 85.2% of cases); certainty was not GRADE-rated (Shekelle category III).

1 finding from 1 review

Consequences of early extraction of compromised first permanent molar: a systematic review. 2018 All outcomes
Hospital- and clinic-based pediatric dental settings (Sweden, Romania, UK, Palestine, Turkey)
Spontaneous space closure ranged from 45.5% to 85.2% overall (maxilla 33.3% to 94%, mandible 50% to 75%). Table 3 conclusion: early extraction of compromised FPM leads to decrease in post extraction space (Category III…
6 studies
GRADE not reported