title: [Effect of the presurgical nasoalveolar molding using computer-aided design technique].
abstract: OBJECTIVE
  To develop a new method of presurgical nasoalveolar molding based on computer-aided design technique.
  
  
  METHODS
  Twenty patients(16 boys, 4 girls) with complete unilateral cleft lip and palate(UCLP) who received presurgical nasoalveolar molding were recruited as the treatment group. Twenty patients(15 boys, 5 girls) with complete UCLP who did not receive presurgical orthopedic treatment were selected as the control group. All parameters of the digital maxillary model were measured using the Rapidform XOR3 software. The statistical analysis was performed with SPSS 15.0.
  
  
  RESULTS
  A'-X and B-Il were reduced significantly after presurgical nasoalveolar molding. However, the mean alveolar height [F- hight (3.7 ± 1.1) mm, F'-height (4.6 ± 0.9) mm] decreased significantly after treatment(P <0.05). There were significant differences between the treatment group and the control group(P<0.05).
  
  
  CONCLUSIONS
  Maxillary alveolar morphology could be improved in UCLP infants treated with computer-aided presurgical nasoalveolar molding. The width of the cleft could be reduced and the maxillary midline corrected effectively. However, the alveolar height decreased significantly after the treatment.
authors.affiliation: Department of Orthodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine & Shanghai Research Institute of Stomatology & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
authors.forename: Quan
authors.initials: Q
authors.lastname: Yu
authors.affiliation: Email: tmrccbdh@yahoo.com.
authors.forename: Xin
authors.initials: X
authors.lastname: Gong
authors.forename: Gang
authors.initials: G
authors.lastname: Shen
authors.forename: Yusheng
authors.initials: Y
authors.lastname: Yang
authors.forename: Guoyan
authors.initials: G
authors.lastname: Pan
authors.forename: Rongjing
authors.initials: R
authors.lastname: Chen
mesh_terms: D000539:Alveolar Process / Q000473:pathology*; D016022:Case-Control Studies; D002971:Cleft Lip / Q000628:therapy*; D002972:Cleft Palate / Q000628:therapy*; D017076:Computer-Aided Design; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008437:Maxilla; D008953:Models, Anatomic; D009666:Nose / Q000473:pathology; D012984:Software