title: Space closure following loss of lower first premolars.
mesh_terms: D000293:Adolescent; D000328:Adult; D001641:Bicuspid; D002648:Child; D002675:Child, Preschool; D003724:Dental Arch / Q000033:anatomy & histology; D003761:Dental Impression Technique; D005260:Female; D006801:Humans; D008046:Lip / Q000503:physiopathology; D008297:Male; D014081:Tooth Extraction; D014085:Tooth Migration