Space loss and malocclusion.
D000293:Adolescent; D002648:Child; D003724:Dental Arch / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000209:etiology*; D008963:Molar / Q000601:surgery; D012189:Retrospective Studies; D013027:Space Maintenance, Orthodontic; D014078:Tooth Eruption; D014080:Tooth Exfoliation / Q000150:complications*; D014081:Tooth Extraction / Q000009:adverse effects*; D014094:Tooth, Deciduous / Q000601:surgery