title: [A preliminary study of the two models treated by presurgical orthopedics compared with early soft palate adhesion method].
abstract: OBJECTIVE
  To compare results of the growth and development of the upper dental arch and the velopharyngeal closure of the cleft patients treated by two methods.
  
  
  METHODS
  The dental cast of patient and X-ray films were measured and the statistical medical records were analyzed.
  
  
  RESULTS
  The transverse distance of upper dental arch was found to be wider in group A than in group B. The anterior-posterior distance of the dental arch in bilateral cleft group was shorter in group A than in group B. The difference of the two groups were gradually lessened as age increases. Bony bridge in alveolar gap was 63% and 83.3% in unilateral and bilateral cleft group respectively. 15% of cases in group A and 35.2% in group B needed pharyngeal flap.
  
  
  CONCLUSIONS
  The stable upper dental arch in group A can opposes the pressure from the lip muscles, this maintains the width of the arch. But A-P distance of upper dental arch in BCLP in group A should be followed up after the age of 9 years. Pharyngeal flap is needed less in group A than in group B.
authors.affiliation: Craniofacial Center, West China of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Hui-fen
authors.initials: HF
authors.lastname: Xu
authors.forename: Yu-gui
authors.initials: YG
authors.lastname: Duan
authors.forename: Ju
authors.initials: J
authors.lastname: Qiao
authors.forename: Xiao-yi
authors.initials: XY
authors.lastname: Liao
authors.forename: Qian
authors.initials: Q
authors.lastname: Zheng
authors.forename: Bing
authors.initials: B
authors.lastname: Shi
mesh_terms: D000539:Alveolar Process / Q000254:growth & development; D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000601:surgery*; D002972:Cleft Palate / Q000601:surgery*; D006801:Humans; D007223:Infant; D009971:Orthodontics, Corrective; D010160:Palate, Soft / Q000601:surgery