title: Overjet correction by a combined headgear and activator.
mesh_terms: D000202:Activator Appliances; D000293:Adolescent; D002508:Cephalometry; D002648:Child; D004867:Equipment Design; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D009968:Orthodontic Appliances, Removable; D014087:Tooth Movement Techniques / Q000295:instrumentation