[Computer aided design and computer aided manufacture of sacrificial pattern of removable partial denture framework].
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.
Wu
Lin
L
Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
Lü
Pei-jun
PJ
Wang
Yong
Y
Ai
Hong-jun
HJ
Dong
De-yi
DY
D017076:Computer-Aided Design; D003735:Dental Casting Technique; D017267:Dental Prosthesis Design / Q000379:methods; D003832:Denture, Partial, Removable; D021621:Imaging, Three-Dimensional