title: Timing of orthodontic treatment.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000628:therapy*; D002972:Cleft Palate / Q000628:therapy*; D006801:Humans; D009971:Orthodontics, Corrective; D013995:Time; D013997:Time Factors