title: Lip habits in preventive orthodontics.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005152:Facial Muscles / Q000503:physiopathology; D006184:Habits; D006801:Humans; D008046:Lip; D008310:Malocclusion / Q000209:etiology; D009058:Mouth Breathing / Q000150:complications; D009973:Orthodontics, Preventive / Q000379:methods*