title: [The effect of pre-surgical orthodontics on secondary alveolar bone grafting in the patients with complete cleft lip and palate].
abstract: OBJECTIVE
  To examine the effect of pre-surgical orthodontics on the outcome of the secondary alveolar bone grafting in the patients with complete cleft lip and palate.
  
  
  METHODS
  Sixteen complete cleft lip and palate patients (9 males and 7 females) with collapsed upper arch or severe mal-positioned upper incisors were selected. The cleft was not easily grafted because of the poor access. The total cleft sites were 22 (10 patients with UCLP and 6 patients with BCLP). The age range of the patients was from 8 to 22 years. Pre-surgical orthodontic treatment was mainly to expand the collapsed upper arch and correct the mal-positioned upper incisors. After the secondary alveolar bone grafting, the patients were followed up and anterior occlusal radiograph/intraoral panograph were taken regularly. The observation period was from 6 months to 4 years. Bergland criteria were used to evaluate the interdental septal height.
  
  
  RESULTS
  Upper arch expansion and the correction of the mal-positioned upper incisors done by the orthodontic treatment made the bone grafting procedure easier. The clinically successful rate reached 86%.
  
  
  CONCLUSIONS
  The severe upper arch collapse and mal-positioned upper incisors in the patients with complete cleft lip and palate should be corrected orthodontically before the secondary alveolar bone grafting.
authors.affiliation: Department of Orthodontics, Peking University School of Stomatology, Beijing 100081, China. yljia2000@elong.com
authors.forename: Yi-lin
authors.initials: YL
authors.lastname: Jia
authors.forename: Min-kui
authors.initials: MK
authors.lastname: Fu
authors.forename: Lian
authors.initials: L
authors.lastname: Ma
mesh_terms: D000015:Abnormalities, Multiple / Q000601:surgery / Q000628:therapy; D000293:Adolescent; D000328:Adult; D000539:Alveolar Process / Q000002:abnormalities / Q000601:surgery; D016025:Bone Transplantation; D002648:Child; D002971:Cleft Lip / Q000150:complications / Q000601:surgery*; D002972:Cleft Palate / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000150:complications / Q000601:surgery / Q000628:therapy*; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective