title: Fit Analysis of Different Framework Fabrication Techniques for Implant-Supported Partial Prostheses.
abstract: OBJECTIVE
  This study evaluated the vertical misfit of implant-supported frameworks made using different techniques to obtain passive fit.
  
  
  METHODS
  Thirty three-unit fixed partial dentures were fabricated in cobalt-chromium alloy (n = 10) using three fabrication methods: one-piece casting, framework cemented on prepared abutments, and laser welding. The vertical misfit between the frameworks and the abutments was evaluated with an optical microscope using the single-screw test. Data were analyzed using one-way analysis of variance and Tukey test (α = .05).
  
  
  RESULTS
  The one-piece casted frameworks presented significantly higher vertical misfit values than those found for framework cemented on prepared abutments and laser welding techniques (P < .001 and P < .003, respectively).
  
  
  CONCLUSIONS
  Laser welding and framework cemented on prepared abutments are effective techniques to improve the adaptation of three-unit implant-supported prostheses. These techniques presented similar fit.
authors.forename: Aloísio Oro
authors.initials: AO
authors.lastname: Spazzin
authors.forename: Atais
authors.initials: A
authors.lastname: Bacchi
authors.forename: Alexandre
authors.initials: A
authors.lastname: Trevisani
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Farina
authors.forename: Mateus Bertolini
authors.initials: MB
authors.lastname: Dos Santos
mesh_terms: D003764:Dental Materials; D017267:Dental Prosthesis Design; D003830:Denture, Partial, Fixed; D008422:Materials Testing / Q000379:methods
chemical_list: D003764:Dental Materials