title: [Clinical study of preoperative orthodontic treatment for patients with cleft lip and palate].
abstract: OBJECTIVE
  To discuss the indication and time of preoperative orthodontic treatment for the patients with cleft lip and palate.
  
  
  METHODS
  16 cleft lip and palate patients (BCLP 6, UCLP 10) with severe cross-bite were selected. Edgewise appliance was used for the alignment and upper arch was expanded with quadhelix.
  
  
  RESULTS
  After the orthodontic treatment, upper and lower arches were well aligned and the arch form was normal. Decompensation was achieved. Model surgery revealed that the upper and lower arches were harmonious.
  
  
  CONCLUSIONS
  Preoperative orthodontic treatment is the key point to ensure the success of the surgery and to prevent relapse. Orthodontic/surgical approach can improve the patients' profile and function.
authors.affiliation: Department of Orthodontics, Peking University School of Stomatology, Beijing 100034, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Yan
authors.forename: Y
authors.initials: Y
authors.lastname: Jia
mesh_terms: D000293:Adolescent; D000328:Adult; D002971:Cleft Lip / Q000628:therapy*; D002972:Cleft Palate / Q000628:therapy*; D006801:Humans; D009971:Orthodontics, Corrective