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The use of 3D metal printing (direct metal laser sintering) in removable prosthodontics

From Volume 43, Issue 9, November 2016 | Pages 826-835

Authors

Dominic P Laverty

ACF/StR in Restorative Dentistry, Birmingham Dental Hospital

Articles by Dominic P Laverty

Matthew BM Thomas

BDS(Hons), MFDS, MPhil, MRDRCS(Ed), FDS RCS(Eng), FDS RCS(Ed), FDTFEd

Specialist Registrar in Restorative Dentistry, Cardiff University School of Dentistry, Heath Park, Cardiff, UK

Articles by Matthew BM Thomas

Paul Clark

Chief Dental Prosthetic Technologist, Cardiff University Dental Hospital, Heath Park, Cardiff, UK

Articles by Paul Clark

Liam D Addy

BDS, MFDS, MPhil, FDS(Rest Dent)

Specialist Registrar in Restorative Dentistry, Cardiff University, Dental School, Wales College of Medicine, Heath Park, Cardiff, CF14 4XY

Articles by Liam D Addy

Abstract

The use of 3D printing is expanding and it is envisaged that it will have an increasing presence within dentistry. Having an appreciation and understanding of such technology is therefore paramount. It is currently used to produce a variety of dental objects/ prostheses. This paper briefly looks at 3D printing in dentistry and specifically describes the use of the direct metal laser sintering 3D printing technique in the production of cobalt chromium removable prosthesis frameworks.

CPD/Clinical Relevance: Understanding the different technologies that can and are being used within the dental field is important, particularly as it is a rapidly changing field. Having an understanding of such technologies will allow practitioners to utilize such technologies appropriately in the management of their patients.

Article

Three-Dimensional (3D) printing is a process of making a 3D object from a digital file. The 3D object is created using an additive process whereby successive layers of material are placed until the object is created. These layers are thin horizontal 2D cross-sections of the eventual 3D object.1

It was Charles Hull in the early 1980s who invented 3D printing. He described the process of stereolithography or the ‘printing’ of successive layers of material on top of each other to create a 3D object.2

The use of 3D printing is expanding, with the entire 3D printing industry currently worth around $700 million, and is expected to grow to an estimated $8.9 billion industry in the next 10 years.3 Even NASA have used 3D printing to produce a fuel injector and plan to have a 3D printer on board their next space flight.4

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