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A study on the fabrication method of removable partial denture framework by computer‐aided design and rapid prototyping

Jiang Wu (School of Stomatology, Fourth Military Medical University, Xi'an, China)
Xiaobo Wang (101th Hospital, Wuxi, China)
Xianghui Zhao (School of Basic Medical Sciences, Fourth Military Medical University, Xi'an, China)
Chunbao Zhang (School of Stomatology, Fourth Military Medical University, Xi'an, China)
Bo Gao (School of Stomatology, Fourth Military Medical University, Xi'an, China)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 8 June 2012

1913

Abstract

Purpose

The purpose of this paper is to explore an application of computer‐aided design and manufacture (CAD/CAM) to a process of electronically surveying a scanned dental cast as a prior stage to producing a sacrificial pattern for a removable partial denture (RPD) metal alloy framework.

Design/methodology/approach

With the introduction of laser scan technology and commercial reverse engineering software, a standard plaster maxillary dental cast with dentition defect was successfully scanned and created as a STL‐formatted digital cast. With the software, the unwanted undercuts were eliminated based on the desired path of insertion. Parts of the RPD framework were then successfully custom‐designed and combined as a whole.

Findings

A sacrificial pattern was produced by rapid prototyping (RP) method and finally casted with chromium cobalt alloy. With suitable finishing process, both the sacrificial pattern and the casted framework fitted the cast well.

Originality/value

The research indicated the feasibility of creating a library of RPD framework components. It is believed that, in the future, with the advance of the techniques, a totally new platform can be developed for the design and fabrication of custom‐fit RPD framework based on the CAD/CAM/RP system.

Keywords

Citation

Wu, J., Wang, X., Zhao, X., Zhang, C. and Gao, B. (2012), "A study on the fabrication method of removable partial denture framework by computer‐aided design and rapid prototyping", Rapid Prototyping Journal, Vol. 18 No. 4, pp. 318-323. https://doi.org/10.1108/13552541211231743

Publisher

:

Emerald Group Publishing Limited

Copyright © 2012, Emerald Group Publishing Limited

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