Spontaneous space closure · Children aged 5 to 15 years undergoing first permanent molar extraction
Spontaneous post-extraction space closure did not differ significantly between the maxilla and mandible (pooled OR 2.06, 95% CI 0.46 to 9.28; 3 studies; I2 = 72%); ungraded.
1 finding from 1 review
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
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
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)
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, 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)
Spontaneous space closure is much more likely in the maxilla than the mandible (OR 7.77; low certainty).
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
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 Demirjian stage E (vs later F-H) increases odds of space closure (OR 3.81; 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, 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, 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)
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
Midline deviation of the mandibular arch · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
One study found midline deviation more likely after unilateral than bilateral extraction (OR 11.6; 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 maxilla, spontaneous space closure occurred in about 85% of cases (9 studies; prevalence not GRADE-rated).
3 findings from 1 review
Rotation of the mandibular second premolar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
After mandibular first molar extraction, the second premolar was rotated in about 60% of cases (2 studies; very imprecise; not GRADE-rated).
1 finding from 1 review
Rotation of the mandibular second permanent molar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
After mandibular first molar extraction, the second molar was rotated in about 77% of cases (2 studies; very imprecise; not GRADE-rated).
1 finding from 1 review
Rotation of the mandibular first premolar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)
After mandibular first molar extraction, the first premolar was rotated in about 38% of cases (2 studies; very imprecise; not GRADE-rated).
1 finding from 1 review