Spontaneous space closure · Children and adolescents with maxillary permanent first molar extraction
In the maxilla, age 8-10 years was not associated with a statistically significant difference in space closure odds.
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, presence of the third molar increases odds of spontaneous space closure (OR 2.28; low certainty).
1 finding from 1 review
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 · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
Spontaneous space closure is much more likely in the maxilla than the mandible (OR 7.77; low certainty).
1 finding from 1 review
Intervention not reported
Spontaneous space closure
The intervention led to higher spontaneous space closure; GRADE not reported.
1 finding from 1 review
OR 42.0
1 study
GRADE not reported
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, extraction at 11-12 vs 8-10 years showed no significant difference in one analysis (OR 0.82; not GRADE-rated).
2 findings from 1 review
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 · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, mean patient age was not significantly associated with space closure odds (OR 0.59 per year; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, distal inclination of the second molar vs upright was not significantly associated with space closure (OR 1.18; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, Demirjian stage F-G vs D-E was not significantly associated with space closure (OR 0.68; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, Demirjian stage A-D vs G-H was not significantly associated with space closure (OR 2.75; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, sex was not significantly associated with space closure (OR 1.38; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a maxillary permanent first molar (before eruption of the second molar)
In the maxilla, extraction at Demirjian stage E (vs later F-H) increases odds of space closure (OR 4.78; low certainty).
1 finding from 1 review
Intervention not reported
Spontaneous space closure
1 finding from 1 review
OR >100.00
1 study
GRADE not reported
Spontaneous space closure · Children and adolescents with maxillary permanent first molar extraction
In the maxilla, M2 Demirjian stages F-G were not associated with a statistically significant difference in space closure odds.
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, Demirjian stage E-F vs G-H was not significantly associated with space closure (OR 4.44; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, earlier Demirjian stage A-D (vs F-H) increases odds of space closure (OR 3.11; low certainty).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, mesial inclination of the second molar vs upright was not significantly associated with space closure (OR 0.68; not GRADE-rated).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, extraction before age 8 (vs after 10) increases odds of space closure (OR 5.01; low certainty).
1 finding from 1 review
Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
In the mandible, extraction at age 8-10 (vs after 10) increases odds of space closure (OR 3.32; low certainty).
1 finding from 1 review