Second premolar extraction in Class I and Class II.
D000293:Adolescent; D001641:Bicuspid; D002508:Cephalometry; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D009971:Orthodontics, Corrective; D010347:Patient Care Planning; D014081:Tooth Extraction