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Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters

Although 3D-printing is common in dentistry, the technique does not produce the required quality for all target applications. Resin type, printing resolution, positioning, alignment, target structure, and the type and number of support structures may influence the surface roughness of printed object...

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Autores principales: Arnold, Christin, Monsees, Delf, Hey, Jeremias, Schweyen, Ramona
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631072/
https://www.ncbi.nlm.nih.gov/pubmed/31248083
http://dx.doi.org/10.3390/ma12121970
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author Arnold, Christin
Monsees, Delf
Hey, Jeremias
Schweyen, Ramona
author_facet Arnold, Christin
Monsees, Delf
Hey, Jeremias
Schweyen, Ramona
author_sort Arnold, Christin
collection PubMed
description Although 3D-printing is common in dentistry, the technique does not produce the required quality for all target applications. Resin type, printing resolution, positioning, alignment, target structure, and the type and number of support structures may influence the surface roughness of printed objects, and this study investigates the effects of these variables. A stereolithographic data record was generated from a master model. Twelve printing processes were executed with a stereolithography Desktop 3D Printer, including models aligned across and parallel to the printer front as well as solid and hollow models. Three layer thicknesses were used, and in half of all processes, the models were inclined at 15°. For comparison, eight gypsum models and milled polyurethane models were manufactured. The mean roughness index of each model was determined with a perthometer. Surface roughness values were approximately 0.65 µm (master), 0.87–4.44 µm (printed), 2.32–2.57 µm (milled), 1.72–1.86 µm (cast plaster/alginate casting), and 0.98–1.03 µm (cast plaster/polyether casting). The layer height and type and number of support structures influenced the surface roughness of printed models (p ≤ 0.05), but positioning, structure, and alignment did not.
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spelling pubmed-66310722019-08-19 Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters Arnold, Christin Monsees, Delf Hey, Jeremias Schweyen, Ramona Materials (Basel) Article Although 3D-printing is common in dentistry, the technique does not produce the required quality for all target applications. Resin type, printing resolution, positioning, alignment, target structure, and the type and number of support structures may influence the surface roughness of printed objects, and this study investigates the effects of these variables. A stereolithographic data record was generated from a master model. Twelve printing processes were executed with a stereolithography Desktop 3D Printer, including models aligned across and parallel to the printer front as well as solid and hollow models. Three layer thicknesses were used, and in half of all processes, the models were inclined at 15°. For comparison, eight gypsum models and milled polyurethane models were manufactured. The mean roughness index of each model was determined with a perthometer. Surface roughness values were approximately 0.65 µm (master), 0.87–4.44 µm (printed), 2.32–2.57 µm (milled), 1.72–1.86 µm (cast plaster/alginate casting), and 0.98–1.03 µm (cast plaster/polyether casting). The layer height and type and number of support structures influenced the surface roughness of printed models (p ≤ 0.05), but positioning, structure, and alignment did not. MDPI 2019-06-19 /pmc/articles/PMC6631072/ /pubmed/31248083 http://dx.doi.org/10.3390/ma12121970 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Arnold, Christin
Monsees, Delf
Hey, Jeremias
Schweyen, Ramona
Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title_full Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title_fullStr Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title_full_unstemmed Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title_short Surface Quality of 3D-Printed Models as a Function of Various Printing Parameters
title_sort surface quality of 3d-printed models as a function of various printing parameters
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631072/
https://www.ncbi.nlm.nih.gov/pubmed/31248083
http://dx.doi.org/10.3390/ma12121970
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