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Scientific paper - Original scientific paper
Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners
Polymers, 16 (2024), 8; 1067. https://doi.org/10.3390/polym16081067
Šimunović, Luka; Čekalović Agović, Sara; Marić, Antun Jakob; Bačić, Ivana; Klarić, Eva; Uribe, Flavio; Meštrović, Senka

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Šimunović, L., Čekalović Agović, S., Marić, A. J., Bačić, I., Klarić, E., Uribe, F. & Meštrović, S. (2024). Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners. Polymers, 16. (8). doi: 10.3390/polym16081067

Šimunović, Luka, et al. "Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners." Polymers, vol. 16, no. 8, 2024. https://doi.org/10.3390/polym16081067

Šimunović, Luka, Sara Čekalović Agović, Antun Jakob Marić, Ivana Bačić, Eva Klarić, Flavio Uribe and Senka Meštrović. "Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners." Polymers 16, no. 8 (2024). https://doi.org/10.3390/polym16081067

Šimunović, L., et al. (2024) 'Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners', Polymers, 16(8). doi: 10.3390/polym16081067

Šimunović L, Čekalović Agović S, Marić AJ, Bačić I, Klarić E, Uribe F, and sur.. Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners. Polymers [Internet]. 2024 April 11 [cited 2024 July 10];16(8). doi: 10.3390/polym16081067

L. Šimunović, et al., "Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners", Polymers, vol. 16, no. 8, April 2024. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:127:758843. [Accessed: 10 July 2024]

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Metadata
Title (english)Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners
AuthorLuka Šimunović
AuthorSara Čekalović Agović
AuthorAntun Jakob Marić
AuthorIvana Bačić
AuthorEva Klarić
AuthorFlavio Uribe
AuthorSenka Meštrović
Author's institution(Zagreb University Hispital Center)
Author's institutionUniversity of Zagreb
School of Dental Medicine
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Dental Medicine
Abstract (english)
The significant rise in the use of clear aligners for orthodontic treatment is attributed to their aesthetic appeal, enhancing patient appearance and self-confidence. The aim of this study is to evaluate the aligners’ response to common staining agents (coffee, black tea, Coca-Cola, and Red Bull) in color and chemical stability. Polyurethane-based thermoformed and 3D-printed aligners from four brands were exposed to common beverages to assess color change using a VITA Easyshade compact colorimeter after 24 h, 48 h, 72 h, and 7 days, as well as chemical stability using ATR-FTIR spectroscopy. The brand, beverage, and manufacturing method significantly influence color stability. ATR-FTIR analysis revealed compositional differences, with variations in response to beverage exposure affecting the integrity of polymer bonds. Color change analysis showed coffee as the most potent staining agent, particularly affecting Tera Harz TC85 aligners, while ClearCorrect aligners exhibited the least susceptibility. 3D-printed aligners showed a greater color change compared to thermoformed ones. Aligners with a PETG outer layer are more resistant to stains and chemical alterations than those made of polyurethane. Additionally, 3D-printed polyurethane aligners stain more than thermoformed ones. Therefore, PETG-layered aligners are a more reliable choice for maintaining the aesthetic integrity of aligners.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePolymers
Numberingvol. 16, no. 8, 1067
e-ISSN2073-4360
DOIhttps://doi.org/10.3390/polym16081067
URN:NBNurn:nbn:hr:127:758843
Publication2024-04-11
Document URLhttps://www.mdpi.com/2073-4360/16/8/1067
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) icon
Created on2024-05-23 08:33:27