Journal ArticleDOI
Accuracy of medical models made by additive manufacturing (rapid manufacturing)
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TLDR
A novel measuring technique was developed and its repeatability was found to be good and the accuracy of the PolyJet was higher when compared with SLS or 3DP.Abstract:
Background: Additive manufacturing (AM) is being increasingly used for producing medical models. The accuracy of these models varies between different materials, AM technologies and machine runs. Purpose: To determine the accuracy of selective laser sintering (SLS), three-dimensional printing (3DP) and PolyJet technologies in the production of medical models. Material: 3D skull models: “original”, “moderate” and “worse”. SLS, 3DP and PolyJet models, and a coordinate measuring machine (CMM). Methods: Measuring 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. Results: The 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. Conclusion: A 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.read more
Citations
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3D printing in dentistry.
TL;DR: The types of 3D printing technologies available and their various applications in dentistry and in maxillofacial surgery are reviewed.
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Advantages and disadvantages of 3-dimensional printing in surgery: A systematic review.
Nicolas Martelli,Carole Serrano,Hélène van den Brink,Judith Pineau,Patrice Prognon,Isabelle Borget,Salma El Batti +6 more
TL;DR: The development of guidelines to improve the reporting of experience with 3D printing in surgery is highly desirable and the additional cost and the time needed to produce devices by current 3D technology still limit its widespread use in hospitals.
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Medical 3D Printing for the Radiologist
Dimitris Mitsouras,Peter Liacouras,Amir Imanzadeh,Andreas A. Giannopoulos,Tianrun Cai,Kanako K. Kumamaru,Elizabeth George,Nicole Wake,Edward J. Caterson,Bohdan Pomahac,Vincent B. Ho,Gerald T. Grant,Frank J. Rybicki +12 more
TL;DR: 3D printing from images generated and interpreted by radiologists presents particular challenges, including training, materials and equipment, and guidelines, and the overall costs of a 3D printing laboratory must be balanced by the clinical benefits.
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Laser based additive manufacturing in industry and academia
Michael Schmidt,Marion Merklein,David L. Bourell,Dimitri Dimitrov,Tino Hausotte,Konrad Wegener,Ludger Overmeyer,Frank Vollertsen,Gideon Levy +8 more
TL;DR: In this paper, an overview over laser-based additive manufacturing with comments on the main steps necessary to build parts to introduce the complexity of the whole process chain is presented. But despite good sales of AM machines, there are still several challenges hindering a broad economic use of AM.
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Additive manufacturing applications in medical cases: A literature based review
Mohd Javaid,Abid Haleem +1 more
TL;DR: The aim of work is to illustrate the Additive Manufacturing technology as being used in medical and its benefits along-with contemporary and future applications to solve medical problems with extensive benefit to humanity.
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International Organization for Standardization ISO/IEC 17025 General Requirements for the Competence of Testing and Calibration Laboratories
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Journal ArticleDOI
Linear accuracy and reliability of cone beam CT derived 3-dimensional images constructed using an orthodontic volumetric rendering program.
Danielle R. Periago,William C. Scarfe,Mazyar Moshiri,James P. Scheetz,Anibal M. Silveira,Allan G. Farman +5 more
TL;DR: While many linear measurements between cephalometric landmarks on 3D volumetric surface renderings obtained using Dolphin 3D software generated from CBCT datasets may be statistically significantly different from anatomic dimensions, most can be considered to be sufficiently clinically accurate for craniofacial analyses.
Journal ArticleDOI
Accuracy of implant placement based on pre-surgical planning of three-dimensional cone-beam images: a pilot study.
N. Van Assche,D. van Steenberghe,Maria Eugenia Guerrero,E. Hirsch,Filip Schutyser,Marc Quirynen,Reinhilde Jacobs +6 more
TL;DR: Cone-beam images could be used for implant planning, taking into account a maximal 4 degrees angular and 2.4 mm linear deviation at the apical tip, for oral implant placement in partially edentulous jaws.
Journal ArticleDOI
Analysis of errors in medical rapid prototyping models.
Jung Yun Choi,Jong-Jin Choi,Namkug Kim,Young-Youn Kim,Jong-Ki Lee,Myo-Jeong Kim,Jongcheon Lee,Myung-Jin Kim +7 more
TL;DR: This work investigated errors generated during the production of medical RP models, and identified the factors that caused dimensional errors in each production phase.