Design and manufacture of customized dental implants by using reverse engineering and selective laser melting technology

	Design and manufacture of customized dental implants by using reverse engineering and selective laser melting technology
	Jianyu Chen; Zhiguang Zhang; Xianshuai Chen; Chunyu Zhang; Gong Zhang; Zhewu Xu
刊名	JOURNAL OF PROSTHETIC DENTISTRY
	2014
英文摘要	Statement of problem. Recently a new therapeutic concept of patient-specific implant dentistry has been advanced based on computer-aided design/computer-aided manufacturing technology. However, a comprehensive study of the design and 3-dimensional (3D) printing of the customized implants, their mechanical properties, and their biomechanical behavior is lacking. Purpose. The purpose of this study was to evaluate the mechanical and biomechanical performance of a novel custom-made dental implant fabricated by the selective laser melting technique with simulation and in vitro experimental studies. Material and methods. Two types of customized implants were designed by using reverse engineering: a root-analog implant and a root-analog threaded implant. The titanium implants were printed layer by layer with the selective laser melting technique. The relative density, surface roughness, tensile properties, bend strength, and dimensional accuracy of the specimens were evaluated. Nonlinear and linear finite element analysis and experimental studies were used to investigate the stress distribution, micromotion, and primary stability of the implants. Results. Selective laser melting 3D printing technology was able to reproduce the customized implant designs and produce high density and strength and adequate dimensional accuracy. Better stress distribution and lower maximum micromotions were observed for the root-analog threaded implant model than for the root-analog implant model. In the experimental tests, the implant stability quotient and pull-out strength of the 2 types of implants indicated that better primary stability can be obtained with a root-analog threaded implant design. Conclusions. Selective laser melting proved to be an efficient means of printing fully dense customized implants with high strength and sufficient dimensional accuracy. Adding the threaded characteristic to the customized root-analog threaded implant design maintained the approximate geometry of the natural root and exhibited better stress distribution and primary stability.
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/article/pii/S0022391314002406
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/6262]
专题	深圳先进技术研究院_南沙所
作者单位	JOURNAL OF PROSTHETIC DENTISTRY
推荐引用方式 GB/T 7714	Jianyu Chen,Zhiguang Zhang,Xianshuai Chen,et al. Design and manufacture of customized dental implants by using reverse engineering and selective laser melting technology[J]. JOURNAL OF PROSTHETIC DENTISTRY,2014.
APA	Jianyu Chen,Zhiguang Zhang,Xianshuai Chen,Chunyu Zhang,Gong Zhang,&Zhewu Xu.(2014).Design and manufacture of customized dental implants by using reverse engineering and selective laser melting technology.JOURNAL OF PROSTHETIC DENTISTRY.
MLA	Jianyu Chen,et al."Design and manufacture of customized dental implants by using reverse engineering and selective laser melting technology".JOURNAL OF PROSTHETIC DENTISTRY (2014).