Extraction of the permanent first molar vs Not applicable (single-group prevalence)
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the maxilla, spontaneous space closure occurred in about 85% of cases (9 studies; prevalence not GRADE-rated).
3 findings from 1 review
- Spontaneous space closure after extraction of permanent first molars in children and adolescents: a systematic review… 2024 All outcomesUntil eruption of the permanent second molar (median follow-up 4.0 years) · University clinics and hospitals in 8 countries (children/adolescents <18 years) · MaxillaPrevalence 85.3 [73.7, 92.3]9 studies · 665 participantsGRADE not reported
- Spontaneous space closure after extraction of permanent first molars in children and adolescents: a systematic review… 2024 All outcomesUntil eruption of the permanent second molar (median follow-up 4.0 years) · University clinics and hospitals in 8 countries (children/adolescents <18 years) · MandiblePrevalence 48.1 [34.5, 62.0]11 studies · 1095 participantsGRADE not reported
- Spontaneous space closure after extraction of permanent first molars in children and adolescents: a systematic review… 2024 All outcomesUntil eruption of the permanent second molar (median follow-up 4.0 years) · University clinics and hospitals in 8 countries (children/adolescents <18 years) · Overall (both jaws)Prevalence 61.6 [50.2, 71.9]13 studies · 1787 participantsGRADE not reported