Production tolerance of additive manufactured polymeric objects for clinical applications

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Production tolerance of additive manufactured polymeric objects for clinical applications

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Publication Article, peer reviewed scientific
Title Production tolerance of additive manufactured polymeric objects for clinical applications
Author(s) Braian, Michael ; Jimbo, Ryo ; Wennerberg, Ann
Date 2016
English abstract
Objectives. To determine the production tolerance of four commercially available additive manufacturing systems. Methods. By reverse engineering annex A and B from the ISO_12836;2012, two geometrical figures relevant to dentistry was obtained. Object A specifies the measurement of an inlay shaped object and B a multi-unit specimen to simulate a four-unit bridge model. The objects were divided into x, y and z measurements, object A was divided into a total of 16 parameters and object B was tested for 12 parameters. The objects were designed digitally and manufactured by professionals in four different additive manufacturing systems; each system produced 10 samples of each objects Results. For object A, three manufacturers presented an accuracy of <100 mu m and one system showed an accuracy of <20 mu m For object B, all systems presented an accuracy of <100 mu m, and most parameters were <40 mu m. The standard deviation for most parameters were <40 mu m Significance. The growing interest and use of intra-oral digitizing systems stresses the use of computer aided manufacturing of working models. The additive manufacturing techniques has the potential to help us in the digital workflow. Thus, it is important to have knowledge about production accuracy and tolerances. This study presents a method to test additive manufacturing units for accuracy and repeatability. (C) 2016 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved
DOI http://dx.doi.org/10.1016/j.dental.2016.03.020 (link to publisher's fulltext)
Publisher Elsevier
Host/Issue DENTAL MATERIALS;7
Volume 32
ISSN 0109-5641
Pages 853-861
Language eng (iso)
Subject(s) Additive manufacturing
Rapid prototyping
Accuracy
Stereolithography;
Selective laser sintering
Dentistry
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/21454 (link to this page)

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