title: Maxillary Protraction With Intermaxillary Elastics to Miniplates Versus Bone-Anchored Face-Mask Therapy in Cleft Lip and Palate Patients.
abstract: BACKGROUND
  Cleft lip and palate patients usually have deficient maxilla due to postsurgical scars. The aim this study was to compare the effectiveness of miniplates-anchored face-mask therapy versus intermaxillary elastics to miniplates for maxillary traction in cleft lip and palate patients.
  
  
  METHODS
  This clinical trial included 11 prepubertal patients with cleft lip and palate. Initially, a w-arch expander was cemented and activated 3 mm per month to overcorrect the crossbite. Then, the patients were divided into 2 groups: mini-plate-anchored face-mask (n = 5): 2 miniplates were placed in the maxilla and the patients were instructed to wear a face-mask for 12 to 14 hours/per day. Intermaxillary elastics to miniplates (n = 6): 2 miniplates were inserted in the maxilla; 1 on each side and 2 miniplates were placed in the anterior mandible on both sides. Intermaxillary elastics with a force of 250 g per side were attached to the hooks. Cephalometric parameters before treatment (T1) and after achieving positive overjet (T2) were compared between the 2 groups. Fisher exact, paired, and independent t tests were used for statistical comparison.
  
  
  RESULTS
  At T1 or T2 there was not a significant difference between the 2 groups in the skeletal, dental, and soft tissue variables.
  
  
  CONCLUSIONS
  According to results of our preliminary study, intermaxillary elastics to miniplates might have a promising effect as an alternative for face mask therapy in maxillary protraction of cleft lip and palate patients.
authors.affiliation: Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Arezoo
authors.initials: A
authors.lastname: Jahanbin
authors.forename: Mozhgan
authors.initials: M
authors.lastname: Kazemian
authors.forename: Neda
authors.initials: N
authors.lastname: Eslami
authors.forename: Iman Saeedi
authors.initials: IS
authors.lastname: Pouya
mesh_terms: D000293:Adolescent; D001860:Bone Plates; D002508:Cephalometry / Q000379:methods; D002648:Child; D002971:Cleft Lip / Q000175:diagnosis / Q000601:surgery*; D002972:Cleft Palate / Q000175:diagnosis / Q000601:surgery*; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D008297:Male; D008397:Masks; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery*; D053441:Suture Anchors