title: Lip seal training in the treatment of skeletal open bite.
mesh_terms: D000202:Activator Appliances; D002648:Child; D006801:Humans; D008046:Lip / Q000473:pathology / Q000502:physiology*; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D009968:Orthodontic Appliances, Removable; D014087:Tooth Movement Techniques / Q000295:instrumentation