Accuracy of medical models made by additive manufacturing (rapid manufacturing) |
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| Authors: | Mika Salmi Kaija-Stiina Paloheimo Jukka Tuomi Jan Wolff Antti Mäkitie |
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| Affiliation: | 1. Aalto University, School of Science, Department of Industrial Engineering and Management, BIT Research Centre (Head: Dr. Jouni Partanen), P.O. Box 15500, FI-00076 Aalto, Espoo, Finland;2. University of Tampere, Department of Otorhinolaryngology, Oral and Maxillofacial Unit (Head: Professor Markus Rautiainen), P.O. Box 2000, FI-33521 Tampere, Finland;3. Tampere University Hospital, Department of Radiology, Medical Imaging Center (Head: Prasun Dastidar, MD, PhD), P.O. Box 2000, FI-33521 Tampere, Finland;4. Helsinki University Central Hospital and University of Helsinki, Department of Otolaryngology, Head & Neck Surgery (Head: Dr. Heikki Rihkanen), P.O. Box 220, FI-00029 HUCH, Helsinki, Finland;1. Pharmacy Department, Georges Pompidou European Hospital, Paris, France;2. University Paris-Sud, GRADES, Faculty of Pharmacy, Châtenay-Malabry, France;3. Department of Health Economics, Gustave Roussy Institute, Villejuif, France;4. Department of Cardiac and Vascular Surgery, Georges Pompidou European Hospital, Paris, France;5. URDIA - Unité de Recherche en Développement, Imagerie et Anatomie - EA 4465, Université Paris Descartes, Paris, France;1. Deakin University, Geelong, Victoria 3220, Australia;2. Cyient Limited, Bengaluru 560100, India;1. Researcher, Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;2. Assistant Professor, Department of Oral and Maxillofacial Surgery, VU University Medical Center, Academic Center for Dentistry Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;3. Associate Professor, Department of Orthopaedics, VU University Medical Center, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;4. Professor and Head Residency Program, Department of Oral and Maxillofacial Surgery, VU University Medical Center, Academic Center for Dentistry Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;6. Head, Department of Oral and Maxillofacial Surgery, VU University Medical Center, Academic Center for Dentistry Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;5. Professor, Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands;1. Oral and Maxillofacial Surgery Research Lab IREC/CHEX/OMFS, Université Catholique de Louvain, Av. Hippocrate 55, B1.55.04, B-1200 Brussels, Belgium;2. Department of Maxillofacial Surgery, Medical University of Lodz, Zeromskiego 113, 90-549 Lodz, Poland |
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| Abstract: | BackgroundAdditive manufacturing (AM) is being increasingly used for producing medical models. The accuracy of these models varies between different materials, AM technologies and machine runs.PurposeTo determine the accuracy of selective laser sintering (SLS), three-dimensional printing (3DP) and PolyJet technologies in the production of medical models.Material3D skull models: “original”, “moderate” and “worse”. SLS, 3DP and PolyJet models, and a coordinate measuring machine (CMM).MethodsMeasuring balls designed for measurements were attached to each 3D model. Skull models were manufactured using SLS, 3DP and PolyJet. The midpoints of the balls were determined using CMM. The distances between these points were calculated and compared with the 3D model.ResultsThe dimensional error for the PolyJet was 0.18 ± 0.12% (first measurement) and 0.18 ± 0.13% (second measurement), for SLS 0.79 ± 0.26% (first model) and 0.80 ± 0.32% (second model), and for 3DP 0.67 ± 0.43% (original model, first measurement) and 0.69 ± 0.44% (original model, second measurement), 0.38 ± 0.22% (moderate model) and 0.55 ± 0.37% (worse model). Repeatability of the measurement method was 0.12% for the PolyJet and 0.08% for the 3DP.ConclusionA novel measuring technique was developed and its repeatability was found to be good. The accuracy of the PolyJet was higher when compared with SLS or 3DP. |
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