Lip incompetency and its treatment.
D002648:Child; D003680:Deglutition Disorders / Q000209:etiology; D005081:Exercise Therapy; D006801:Humans; D008046:Lip / Q000002:abnormalities*; D008310:Malocclusion / Q000209:etiology*; D009056:Mouth Abnormalities / Q000628:therapy*; D009971:Orthodontics, Corrective