title: A modern approach to orthodontic therapy: the advantages of removable functional appliances.
mesh_terms: D000202:Activator Appliances / Q000145:classification / Q000266:history; D002648:Child; D049673:History, 20th Century; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D008335:Mandibular Condyle / Q000254:growth & development; D008445:Maxillofacial Development; D009042:Motivation; D009968:Orthodontic Appliances, Removable / Q000145:classification; D010155:Palatal Expansion Technique; D010349:Patient Compliance; D014059:Tongue / Q000502:physiology