Accuracy of 3-Dimensionally Printed Full-Arch Dental Models: A Systematic Review
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Baneen Qallandar, Omel
Evenden, Jessica
Alifui-Segbaya, Frank
Ahmed, Khaled
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Joda, Tim
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The use of additive manufacturing in dentistry has exponentially increased with dental model construction being the most common use of the technology. Henceforth, identifying the accuracy of additively manufactured dental models is critical. The objective of this study was to systematically review the literature and evaluate the accuracy of full-arch dental models manufactured using different 3D printing technologies. Seven databases were searched, and 2209 articles initially identified of which twenty-eight studies fulfilling the inclusion criteria were analysed. A meta-analysis was not possible due to unclear reporting and heterogeneity of studies. Stereolithography (SLA) was the most investigated technology, followed by digital light processing (DLP). Accuracy of 3D printed models varied widely between <100 to >500 μm with the majority of models deemed of clinically acceptable accuracy. The smallest (3.3 μm) and largest (579 μm) mean errors were produced by SLA printers. For DLP, majority of investigated printers (n = 6/8) produced models with <100 μm accuracy. Manufacturing parameters, including layer thickness, base design, postprocessing and storage, significantly influenced the model’s accuracy. Majority of studies supported the use of 3D printed dental models. Nonetheless, models deemed clinically acceptable for orthodontic purposes may not necessarily be acceptable for the prosthodontic workflow or applications requiring high accuracy.
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Digital Workflows and Material Sciences in Dental Medicine
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© 2021 by the authors. Articles in this book are Open Access and distributed under the Creative Commons Attribution (CC BY) license, which allows users to download, copy and build upon published articles, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications.
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Dentistry
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Etemad-Shahidi, Y; Baneen Qallandar, O; Evenden, J; Alifui-Segbaya, F; Ahmed, K, Accuracy of 3-Dimensionally Printed Full-Arch Dental Models: A Systematic Review, Digital Workflows and Material Sciences in Dental Medicine, 2021, pp. 135-152