title: A computed tomographic scan-derived customized surgical template and fixed prosthesis for flapless surgery and immediate loading of implants in fully edentulous maxillae: a prospective multicenter study.
abstract: BACKGROUND
  Based on three-dimensional implant planning software for computed tomographic (CT) scan data, customized surgical templates and final dental prostheses could be designed to ensure high precision transfer of the implant treatment planning to the operative field and an immediate rigid splinting of the installed implants, respectively.
  
  
  OBJECTIVE
  The aim of the present study was to (1) evaluate a concept including a treatment planning procedure based on CT scan images and a prefabricated fixed prosthetic reconstruction for immediate function in upper jaws using a flapless surgical technique and (2) validate the universality of this concept in a prospective multicenter clinical study.
  
  
  METHODS
  Twenty-seven consecutive patients with edentulous maxillae were included. Treatments were performed according to the Teeth-in-an-Hour concept (Nobel Biocare AB, Göteborg, Sweden), which includes a CT scan-derived customized surgical template for flapless surgery and a prefabricated prosthetic suprastructure.
  
  
  RESULTS
  All patients received their final prosthetic restoration immediately after implant placement, that is, both the surgery and the prosthesis insertion were completed within approximately 1 hour. In the 24 patients followed for 1 year, all prostheses and individual implants were recorded as stable.
  
  
  CONCLUSIONS
  The present prospective multicenter study indicates that the prefabrication, on the basis of models derived from three-dimensional oral implant planning software, of both surgical templates for flapless surgery and dental prostheses for immediate loading is a very reliable treatment option. It is evident that the same approach could be used for staged surgery and in partial edentulism.
authors.affiliation: Department of Periodontology, Catholic University of Leuven, Leuven, Belgium. Daniel.vanSteenberghe@uz.kuleuven.ac.be
authors.forename: Daniel
authors.initials: D
authors.lastname: van Steenberghe
authors.forename: Roland
authors.initials: R
authors.lastname: Glauser
authors.forename: Ulf
authors.initials: U
authors.lastname: Blombäck
authors.forename: Matts
authors.initials: M
authors.lastname: Andersson
authors.forename: Filip
authors.initials: F
authors.lastname: Schutyser
authors.forename: Andreas
authors.initials: A
authors.lastname: Pettersson
authors.forename: Inger
authors.initials: I
authors.lastname: Wendelhag
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017076:Computer-Aided Design; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D003799:Dental Stress Analysis; D003825:Denture, Complete, Immediate; D003827:Denture, Complete, Upper; D006801:Humans; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging / Q000534:rehabilitation; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D008953:Models, Anatomic; D003765:Models, Dental; D011446:Prospective Studies; D025321:Surgery, Computer-Assisted; D014057:Tomography, X-Ray Computed
chemical_list: D015921:Dental Implants