Functional posterior crossbite in the deciduous and early mixed dentition.
D000202:Activator Appliances; D002675:Child, Preschool; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D009971:Orthodontics, Corrective / Q000379:methods*; D014094:Tooth, Deciduous