Comparison 17. Extraction of third molars versus no active treatment (control).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
17.1 Change in mandibular incisor crowding	1	77	Mean Difference (IV, Fixed, 95% CI)	‐0.30 [‐1.30, 0.70]
17.2 Change in mandibular arch length	1	77	Mean Difference (IV, Fixed, 95% CI)	1.03 [0.56, 1.50]
17.3 Change in maxillary incisor crowding	1	77	Mean Difference (IV, Fixed, 95% CI)	0.44 [‐0.52, 1.40]