title: A novel design of a computer-generated splint for vertical repositioning of the maxilla after Le Fort I osteotomy.
abstract: OBJECTIVE
  The objective of this study was to evaluate the efficacy of a novel tooth/bony-supported virtual splint design to control the maxillary vertical, rotational, and anteroposterior intraoperative movements.
  
  
  METHODS
  A tooth/bone-borne splint was designed to position the osteotomized maxilla intraoperatively. Lateral cephalometric radiographs were obtained 1 week before the operation and 1 week after to compare the planned and actual movements of the maxilla.
  
  
  RESULTS
  The paired t test showed no significant difference between the planned and actual movements in both the vertical and horizontal measurements (P ≤ .05). The difference between the planned and actual horizontal movements in 4 (66.7%) of the 6 patients was 1 mm or less. For the vertical movements, 5 (83.3%) of the 6 patients showed a difference equal to or less than 1 mm.
  
  
  CONCLUSIONS
  The 2-piece surgical stent showed accurate control on the osteotomized maxilla and succeeded its repositioning to the preplanned positions.
authors: Faculty of Oral and Dental Medicine, Oral & Maxillofacial Surgery Department, Cairo University, Cairo, Egypt. farid_shehab@hotmail.com
authors: Mohamed F
authors: MF
authors: Shehab
authors: Ahmed A
authors: AA
authors: Barakat
authors: Khaled
authors: K
authors: AbdElghany
authors: Yehia
authors: Y
authors: Mostafa
authors: Dale A
authors: DA
authors: Baur
mesh_terms: D002508:Cephalometry; D017076:Computer-Aided Design; D006801:Humans; D021621:Imaging, Three-Dimensional; D008437:Maxilla / Q000601:surgery*; D019340:Osteotomy, Le Fort; D011474:Prosthesis Design; D012984:Software; D013165:Splints; D014057:Tomography, X-Ray Computed; D014716:Vertical Dimension