Tip-Edge challenges older appliances.
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D002648:Child; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances / Q000639:trends*; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective / Q000379:methods