prikaz prve stranice dokumenta Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners
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Scientific paper - Original scientific paper
Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners
Polymers, 16 (2023), 1; 17. https://doi.org/10.3390/polym16010017
Šimunović, Luka; Jurela, Antonija; Sudarević, Karlo; Bačić, Ivana; Haramina, Tatjana; Meštrović, Senka

Institutional repository: University of Zagreb School of Dental Medicine Repository

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Šimunović, L., Jurela, A., Sudarević, K., Bačić, I., Haramina, T. & Meštrović, S. (2023). Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners. Polymers, 16. (1). doi: 10.3390/polym16010017

Šimunović, Luka, et al. "Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners." Polymers, vol. 16, no. 1, 2023. https://doi.org/10.3390/polym16010017

Šimunović, Luka, Antonija Jurela, Karlo Sudarević, Ivana Bačić, Tatjana Haramina and Senka Meštrović. "Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners." Polymers 16, no. 1 (2023). https://doi.org/10.3390/polym16010017

Šimunović, L., et al. (2023) 'Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners', Polymers, 16(1). doi: 10.3390/polym16010017

Šimunović L, Jurela A, Sudarević K, Bačić I, Haramina T, Meštrović S. Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners. Polymers [Internet]. 2023 December 20 [cited 2024 December 27];16(1). doi: 10.3390/polym16010017

L. Šimunović, A. Jurela, K. Sudarević, I. Bačić, T. Haramina and S. Meštrović, "Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners", Polymers, vol. 16, no. 1, December 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:127:966292. [Accessed: 27 December 2024]

Metadata
Title (english)Influence of Post-Processing on the Degree of Conversion and Mechanical Properties of 3D-Printed Polyurethane Aligners
AuthorLuka Šimunović
AuthorAntonija Jurela
AuthorKarlo Sudarević
AuthorIvana Bačić
AuthorTatjana Haramina
AuthorSenka Meštrović
Author's institution(Zagreb University Hispital Center)
Author's institutionUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Author's institutionUniversity of Zagreb
School of Dental Medicine
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Dental Medicine
Abstract (english)
Background: This study explores how different post-processing methods affect the mechanical properties and degree of conversion of 3d-printed polyurethane aligners made from Tera Harz TC-85 resin. Methods: Using Fourier-transform infrared (FTIR) spectroscopy, the degree of conversion of liquid resin and post-processed materials was analyzed. This investigation focused on the effects of various post-curing environments (nitrogen vs. air) and rinsing protocols (centrifuge, ethanol, isopropanol, and isopropanol + water). The assessed mechanical properties were flexural modulus and hardness. Results: The degree of conversion showed no significant variance across different groups, though the polymerization environment influenced the results, accounting for 24.0% of the variance. The flexural modulus varied considerably, depending on both the rinsing protocol and the polymerization environment. The standard protocol (centrifugation followed by nitrogen polymerization) exhibited the highest flexural modulus of 1881.22 MPa. Hardness testing revealed significant differences, with isopropanol treatments showing increased resistance to wear in comparison to the centrifuge and ethanol rinse treatments. Conclusions: This study conclusively demonstrates the adverse effects of oxygen on the polymerization process, underscoring the critical need for an oxygen-free environment to optimize material properties. Notably, the ethanol rinse followed by nitrogen polymerization protocol emerged as a viable alternative to the conventional centrifuge plus nitrogen method.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePolymers
Numberingvol. 16, no. 1, 17
e-ISSN2073-4360
DOIhttps://doi.org/10.3390/polym16010017
URN:NBNurn:nbn:hr:127:966292
Publication2023-12-20
Document URLhttps://www.mdpi.com/2073-4360/16/1/17
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Created on2024-07-02 08:45:30