[Palatal collapse. Quad-helix therapy (III)].
D000202:Activator Appliances; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D009968:Orthodontic Appliances, Removable; D010155:Palatal Expansion Technique; D010159:Palate / Q000002:abnormalities*
Le contrazioni del palato. Terapia del quad-helix (nota III).