A preliminary study on the forming quality of titanium alloy removable partial denture frameworks fabricated by selective laser melting
10.3760/cma.j.issn.1002-0098.2017.06.006
- VernacularTitle: 选区激光熔化制作可摘局部义齿钛合金支架成形质量初探
- Author:
Yifan LIU
1
;
Hai YU
1
;
Weina WANG
1
;
Bo GAO
1
Author Information
1. Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
- Publication Type:Journal Article
- Keywords:
Denture, partial, removable;
Denture bases;
Titanium;
Three-dimensional printing
- From:
Chinese Journal of Stomatology
2017;52(6):351-354
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the processing accuracy, internal quality and suitability of the titanium alloy frameworks of removable partial denture (RPD) fabricated by selective laser melting (SLM) technique, and to provide reference for clinical application.
Methods:The plaster model of one clinical patient was used as the working model, and was scanned and reconstructed into a digital working model. A RPD framework was designed on it. Then, eight corresponding RPD frameworks were fabricated using SLM technique. Three-dimensional (3D) optical scanner was used to scan and obtain the 3D data of the frameworks and the data was compared with the original computer aided design (CAD) model to evaluate their processing precision. The traditional casting pure titanium frameworks was used as the control group, and the internal quality was analyzed by X-ray examination. Finally, the fitness of the frameworks was examined on the plaster model.
Results:The overall average deviation of the titanium alloy RPD framework fabricated by SLM technology was (0.089±0.076) mm, the root mean square error was 0.103 mm. No visible pores, cracks and other internal defects was detected in the frameworks. The framework fits on the plaster model completely, and its tissue surface fitted on the plaster model well. There was no obvious movement.
Conclusions:The titanium alloy RPD framework fabricated by SLM technology is of good quality.
