Extraction of first molars in discrepancy cases.
D002508:Cephalometry; D002648:Child; D006801:Humans; D008310:Malocclusion / Q000000981:diagnostic imaging / Q000628:therapy*; D008963:Molar; D009971:Orthodontics, Corrective; D010347:Patient Care Planning; D011379:Prognosis; D011859:Radiography; D014081:Tooth Extraction