Accuracy of three-dimensional,paper-based models generated using a low-cost,three-dimensional printer |
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| Institution: | 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;1. Department of Anthropology and Human Genetics, Faculty of Science, Charles University, 128 43, Prague, Czech Republic;2. Department of Software and Computer Science Education, Faculty of Mathematics and Physics, Charles University, 118 00, Prague, Czech Republic;3. Institute of Archaeology of the Academy of Sciences of the Czech Republic, 118 01, Prague, Czech Republic;4. Department of Anthropology, National Museum, 115 79, Prague, Czech Republic;5. Institute of Archaeology of the Academy of Sciences of the Czech Republic, 602 00, Brno, Czech Republic;1. Laboratory of Human Anatomy, University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom;2. Department of Trauma & Orthopaedics, University Hospital of South Manchester, Southmoor Road, Manchester M23 9LT, England, United Kingdom;3. Department of Trauma and Orthopaedics, Glasgow Royal Infirmary, Castle Street, Glasgow G4 0SF, Scotland, United Kingdom;1. School of Clinical Medicine, University of Cambridge, CB2 0SP, United Kingdom;2. Human Anatomy Teaching Group, Department of Physiology, Development & Neuroscience, Downing Site, University of Cambridge, CB2 3DY, United Kingdom;3. Department of Oral and Maxillofacial Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom;1. Fellowship Director, Division of Maxillofacial Oncology and Reconstructive Surgery, John Peter Smith Health Network, Fort Worth, TX;2. Fellow, Division of Maxillofacial Oncology and Reconstructive Surgery, John Peter Smith Health Network, Fort Worth, TX;3. Fellow, Division of Maxillofacial Oncology and Reconstructive Surgery, John Peter Smith Health Network, Fort Worth, TX;4. Assistant Fellowship Director, Division of Maxillofacial Oncology and Reconstructive Surgery, John Peter Smith Health Network, Fort Worth, TX;1. MVLS College, Faculty of Medicine, Glasgow University Dental Hospital and School, Glasgow, UK;2. The Regional Maxillofacial Surgery Unit, The Southern General Hospital, Glasgow, UK;3. Centre for Ultrasonic Engineering, Department of Electrical and Electronic Engineering, University of Strathclyde, Glasgow, UK |
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| Abstract: | Our study aimed to determine the accuracy of a low-cost, paper-based 3D printer by comparing a dry human mandible to its corresponding three-dimensional (3D) model using a 3D measuring arm.One dry human mandible and its corresponding printed model were evaluated. The model was produced using DICOM data from cone beam computed tomography. The data were imported into Maxilim software, wherein automatic segmentation was performed, and the STL file was saved. These data were subsequently analysed, repaired, cut and prepared for printing with netfabb software. These prepared data were used to create a paper-based model of a mandible with an MCor Matrix 300 printer.Seventy-six anatomical landmarks were chosen and measured 20 times on the mandible and the model using a MicroScribe G2X 3D measuring arm. The distances between all the selected landmarks were measured and compared. Only landmarks with a point inaccuracy less than 30% were used in further analyses.The mean absolute difference for the selected 2016 measurements was 0.36 ± 0.29 mm. The mean relative difference was 1.87 ± 3.14%; however, the measurement length significantly influenced the relative difference.The accuracy of the 3D model printed using the paper-based, low-cost 3D Matrix 300 printer was acceptable. The average error was no greater than that measured with other types of 3D printers. The mean relative difference should not be considered the best way to compare studies. The point inaccuracy methodology proposed in this study may be helpful in future studies concerned with evaluating the accuracy of 3D rapid prototyping models. |
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| Keywords: | Cone-beam computed tomography Anatomical models Surgical models Maxillofacial surgery CAD–CAM |
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