title: [Computer aided design and computer aided manufacture of sacrificial pattern of removable partial denture framework].
abstract: OBJECTIVE
  To introduce a method applied in computer aided design and computer aided manufacture (CAD-CAM) of removable partial denture framework for rehabilitating edentulous arch of Kennedy Class II and found a basis for this project.
  
  
  METHODS
  Point cloud data of dental stone model was obtained by laser scanning. The following processes were made: drawing framework outline on the reconstructed triangle mesh model, picking up and processing its inner side data as the data of tissue surface, shelling it for 3-D model of framework, and transferring the data to rapid prototyping equipment for manufacture.
  
  
  RESULTS
  3-D model of the removable partial denture framework was preliminarily accomplished. The resin framework used as a sacrificial pattern was manufactured with the rapid prototyping equipment. The fit between resin framework and plaster model was good.
  
  
  CONCLUSIONS
  This method, as an integrated procedure including data acquisition, 3-D computer modeling and fabrication by rapid prototyping, is feasible to implement CAD-CAM of removable partial denture framework.
authors.affiliation: Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Wu
authors.forename: Pei-jun
authors.initials: PJ
authors.lastname: Lü
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Hong-jun
authors.initials: HJ
authors.lastname: Ai
authors.forename: De-yi
authors.initials: DY
authors.lastname: Dong
mesh_terms: D017076:Computer-Aided Design; D003735:Dental Casting Technique; D017267:Dental Prosthesis Design / Q000379:methods; D003832:Denture, Partial, Removable; D021621:Imaging, Three-Dimensional