Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/32393
Title: 3D-printed multisampling holder for microcomputed tomography applied to life and materials science research
Author: Vasconcelos, Isabel
Franco, Margarida
Pereira, Mário
Duarte, Isabel
Ginjeira, António
Alves, Nuno
Keywords: 3-D printing
Microcomputed tomography
Multisampling holder
Root canal filling
Issue Date: Nov-2021
Publisher: Elsevier
Abstract: The aim of this work was to design, fabricate, test and validate a 3D-printed multisampling holder for multi-analysis by microcomputed tomography. Different raw materials were scanned by microcomputed tomography. The raw material chosen was used to fabricate the holder by 3D printing. To validate the multisampling holder, five teeth were filled with a high density-material and scanned in two ways: a single and a multisampling scan mode. For each tooth, the root canal filling volume, porosity volume, closed pore volume, and open pore volume were calculated and compared when the same tooth was scanned in the two sampling scan mode. ABSplus P430™ allowed a high transmission value (84.3 %), and then it was the polymeric material selected to fabricate the holder. In a single sampling scan mode, the scan duration for scanning five teeth was 87.42 min, contrasting with 21.51 min for a multisampling scan mode, which scanned five teeth at the same time. The scan duration time and the cost using a multisampling holder represented a reduction of 75 % and the data volume generated represented a reduction of 60 %. Comparing the two scan modes, the results also showed that the difference of root canal filling volume, porosity volume, closed pore volume, and open pore volume was not statistically significant (p > .05). The multisampling holder was validated to do multi-analysis by microcomputed tomography without significant loss of quantitative accuracy data, allowing a reduction in scan duration time, imaging cost, and data storage.
Peer review: yes
URI: http://hdl.handle.net/10773/32393
DOI: 10.1016/j.micron.2021.103142
ISSN: 0968-4328
Publisher Version: https://www.sciencedirect.com/science/article/pii/S0968432821001335
Appears in Collections:TEMA - Artigos
DEM - Artigos

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