title: Application of computer-aided designed/computer-aided manufactured techniques in reconstructing maxillofacial bony structures.
abstract: BACKGROUND
  Today, virtually planned surgery and computer-aided designed/computer-aided manufactured (CAD/CAM) tools to reconstruct bony structures are being increasingly applied to maxillofacial surgery. However, the criteria for or against the usage of the CAD/CAM technique are disputable, since no evidence-based studies are available. Theoretically, the CAD/CAM technique should be applied to complex cases. In this case report, we present our experiences and discuss the criteria for application.
  
  
  METHODS
  Three cases are reported in which subjects received an osseous reconstruction using CAD/CAM techniques. In the first case, resection of the mandibular body and ramus was carried out, and reconstruction with a vascularised iliac bone transplant was performed. During surgery, a repositioning of the ipsilateral condyle was necessary. The second case comprised a wide mandibular reconstruction together with a repositioning of the condyles and the soft tissue chin using a two-segment osteomyocutaneous fibula flap. In the third case, a two-flap technique consisting of a double-barrelled osseous fibula flap and a radial forearm flap was applied to cover a wide palatine defect.
  
  
  CONCLUSIONS
  Our experience suggests that the CAD/CAM technique provides an accurate and useful treatment not only in complex cases, but also in simpler ones, to achieve an anatomically correct shape of the bone transplant and to reposition adjacent structures.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Klinikum Bremen-Mitte, School of Medicine of the University of Göttingen, Bremen, Germany, janrustem@gmx.de.
authors.forename: Jan
authors.initials: J
authors.lastname: Rustemeyer
authors.forename: Alexander
authors.initials: A
authors.lastname: Busch
authors.forename: Aynur
authors.initials: A
authors.lastname: Sari-Rieger
mesh_terms: D016025:Bone Transplantation / Q000379:methods; D002680:Chin / Q000601:surgery; D017076:Computer-Aided Design; D005360:Fibula / Q000601:surgery; D005542:Forearm / Q000601:surgery; D006801:Humans; D007085:Ilium / Q000601:surgery; D008335:Mandibular Condyle / Q000601:surgery; D063175:Mandibular Reconstruction / Q000379:methods; D064827:Myocutaneous Flap / Q000637:transplantation; D010159:Palate / Q000601:surgery; D011884:Radius / Q000601:surgery; D019651:Plastic Surgery Procedures / Q000295:instrumentation / Q000379:methods*; D060053:Transplant Donor Site / Q000601:surgery