title: Maxillary reconstruction assisted by preoperative planning and accurate surgical templates.
abstract: OBJECTIVE
  Surgical reconstruction of maxilla is technically challenging and time consuming. The study reports a new method of maxillary reconstruction assisted by preoperative surgical simulation and accurate transferring templates.
  
  
  METHODS
  Six patients requiring maxillary reconstruction were enrolled in our study. Templates of maxillary resection, fibula cutting, and positioning were designed based on computed tomography (CT) data and fabricated via rapid prototyping technique. Resection, fibula cutting, and positioning were performed according to the templates. Accuracy was evaluated by measuring deviation, performed by superimposing preoperative planning and postoperative maxilla.
  
  
  RESULTS
  The surgery was performed faithfully to the preoperative planning. The facial contour was satisfied. Postoperative CT scans showed high accuracy of the surgical implementation. The average central point deviation, maximum deviation, and rotation were 0.58 mm, 1.53 mm, and 6.0°, respectively.
  
  
  CONCLUSIONS
  With preoperative surgical simulation and templates, maxillary reconstruction can be performed accurately.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
authors.forename: Guang-sen
authors.initials: GS
authors.lastname: Zheng
authors.affiliation: Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China; Department of Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.affiliation: Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.
authors.forename: Yu-xiong
authors.initials: YX
authors.lastname: Su
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China. Electronic address: Drliaoguiqing@hotmail.com.
authors.forename: Gui-qing
authors.initials: GQ
authors.lastname: Liao
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
authors.forename: Si-en
authors.initials: SE
authors.lastname: Zhang
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
authors.forename: Xiao-mei
authors.initials: XM
authors.lastname: Lao
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008439:Maxillary Diseases / Q000601:surgery*; D008875:Middle Aged; D010347:Patient Care Planning; D019651:Plastic Surgery Procedures / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome