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Open AccessArticle

Surface Morphology of Three-Dimensionally Printed Replicas of Upper Dental Arches

1
Department of Anthropology, Biology and Physiodetection, Institute of Criminalistics, Police of the Czech Republic, Strojnická 27, 170 89 Prague, Czech Republic
2
Department of Stomatology, 2nd Medical Faculty and Motol University Hospital, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic
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Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 00 Prague 8, Czech Republic
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Department of Stomatology, 1st Faculty of Medicine, Charles University, Katerinska 32, 121 08 Prague 2, Czech Republic
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Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University, Jugoslavskych Partyzanu 3, 160 00 Prague 6, Czech Republic
6
Department of Computing and Control Engineering, University of Chemistry and Technology, Technicka 5, 166 28 Prague 6, Czech Republic
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(16), 5708; https://doi.org/10.3390/app10165708
Received: 21 June 2020 / Revised: 22 July 2020 / Accepted: 12 August 2020 / Published: 17 August 2020
(This article belongs to the Section Applied Dentistry)
The aim of our study was to analyze the precision of fused-deposition modeling (FDM), polyjet technology (PJ), stereolithography (SLA) and selective laser sintering (SLS) and to evaluate some interesting indications of these methods in clinical practice. Forty upper dental arches were scanned using a 3Shape Trios 3R optical scanner system and 3D models were made. An Atos II 400 optical 3D scanner was used for calculating the coordinates of points by optical triangulation, photogrammetry and fringe projection. Each model was scanned from a minimum of 56 positions to evaluate global coordinates. Surface morphology was evaluated with an Alpha Step IQ profilometer and a JSM 5510 LV scanning electron microscope. From the measurements in cross-sections it was evident that the deviation shifted by approximately 0.1 mm. The smoothest and most homogeneous sample was SLA. SLS and SLA samples showed the most similar results in comparison of perpendicular directions (homogeneity). FDM and PJ materials exhibited significantly greater roughness in the printing direction than in the perpendicular one, which is most likely caused by the technology selected and/or print parameters. Clinical applications have demonstrated unusual treatment options for patients with rare diseases. View Full-Text
Keywords: orthodontics; additive manufacturing; stereolithography; fused-deposition modeling; polyjet technology; selective laser sintering; intraoral scanner orthodontics; additive manufacturing; stereolithography; fused-deposition modeling; polyjet technology; selective laser sintering; intraoral scanner
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Eliasova, H.; Dostalova, T.; Jelinek, M.; Remsa, J.; Bradna, P.; Prochazka, A.; Kloubcova, M. Surface Morphology of Three-Dimensionally Printed Replicas of Upper Dental Arches. Appl. Sci. 2020, 10, 5708.

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