title: Does the Fränkel appliance produce forward movement of mandibular premolars?
mesh_terms: D000202:Activator Appliances; D000293:Adolescent; D000539:Alveolar Process / Q000378:metabolism / Q000502:physiology; D001641:Bicuspid / Q000502:physiology*; D002648:Child; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy; D008334:Mandible / Q000378:metabolism / Q000502:physiology; D009924:Organ Culture Techniques; D009968:Orthodontic Appliances, Removable; D014087:Tooth Movement Techniques / Q000295:instrumentation