1. Accuracy of 3D printed scan bodies for dental implants using two additive manufacturing systems: An in vitro study.
- Author
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Hopfensperger LJ, Talmazov G, Ammoun R, Brenes C, and Bencharit S
- Subjects
- Computer-Aided Design, Printing, Three-Dimensional, Stereolithography, Dental Implants, Surgery, Computer-Assisted
- Abstract
This study compared the accuracy of implant scan bodies printed using stereolithography (SLA) and digital light processing (DLP) technologies to the control (manufacturer's scan body) Scan bodies were printed using SLA (n = 10) and DLP (n = 10) methods. Ten manufacturer's scan bodies were used as control. The scan body was placed onto a simulated 3D printed cast with a single implant placed. An implant fixture mount was used as standard. The implant positions were scanned using a laboratory scanner with the fixture mounts, manufacturer's scan bodies, and the printed scan bodies. The scans of each scan body was then superimposed onto the referenced fixture mount. The 3D angulation and linear deviations were measured. The angulation and linear deviations were 1.24±0.22° and 0.20±0.05 mm; 2.63±0.82° and 0.34±0.11 mm; 1.79±0.19° and 0.32±0.03 mm; for the control, SLA, and DLP, respectively. There were statistical differences (ANOVA) among the three groups in the angular (p<0.01) or linear deviations (p<0.01). Box plotting, 95% confidence interval and F-test suggested the higher variations of precision in the SLA group compared to DLP and control groups. Scan bodies printed in-office have lower accuracy compared to the manufacturer's scan bodies. The current technology for 3D printing of implant scan bodies needs trueness and precision improvements., Competing Interests: Author Sompop Bencharit is a paid consultant and speaker for Formlabs and ZimVie, outside the submitted work. Author Christian Brenes is also a paid consultant and speaker for Sprinkray, outside the submitted work. The manufacturers did not provide any support to this project and did not play any role in the experimental design, result interpretation, manuscript preparation, or the submission of this work. There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2023 Hopfensperger et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
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