Universität zu Köln

Janson, Malin ORCID: 0009-0006-6486-6825, Liebermann, Anja ORCID: 0000-0002-1385-2195 and Schoppmeier, Christoph Matthias ORCID: 0000-0002-3269-8920 (2025). Color stability and surface roughness of novel single-shade universal composite resins exposed to staining solutions: an in vitro study. The Saudi Dental Journal, 37 (4-6). pp. 1-10. Springer Nature. ISSN 1013-9052

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Abstract

[Artikel-Nr.: 28] This study investigated the color stability and surface roughness of three novel single-shade universal composites after exposure to common staining solutions. A total of 120 specimens (n = 40 per composite) were fabricated from Transcend Universal Composite (TRA), Ecosite One (ECO), and Clearfil Majesty ES-2 Universal (CLA). Specimens were stored at 37 °C in four different staining solutions (artificial saliva, coffee, red wine, matcha tea). Color changes (ΔE₀₀) were assessed at five time points using the eLAB system, and surface roughness (Sa, Sz) was analyzed via 3D laser scanning microscopy. Statistical analysis was performed using a linear mixed model and post-hoc test (Tukey) (p < 0.05). Composite type, staining solution, and exposure duration significantly affected discoloration (p < 0.001). Red wine induced the most pronounced color change (ECO: ΔE₀₀ = 38.9 ± 1.56), while coffee and matcha tea caused similar discoloration (p = 0.164). TRA showed the greatest surface roughness increase; no correlation with color change was observed. The color stability of single-shade composites is influenced by resin matrix composition and staining agent exposure. Tri-modal or nanohybrid composites showed greater color stability than the micro hybrid composite. Surface roughness did not impact discoloration susceptibility.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Janson, Malin UNSPECIFIED https://orcid.org/0009-0006-6486-6825 UNSPECIFIED Liebermann, Anja UNSPECIFIED https://orcid.org/0000-0002-1385-2195 UNSPECIFIED Schoppmeier, Christoph Matthias UNSPECIFIED https://orcid.org/0000-0002-3269-8920 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-810235
Identification Number:	10.1007/s44445-025-00035-w
Journal or Publication Title:	The Saudi Dental Journal
Volume:	37
Number:	4-6
Page Range:	pp. 1-10
Number of Pages:	10
Date:	15 July 2025
Publisher:	Springer Nature
ISSN:	1013-9052
Language:	English
Faculty:	Faculty of Medicine
Divisions:	Faculty of Medicine > Zahn-, Mund- und Kieferheilkunde > Poliklinik für Zahnerhaltung und Parodontologie Faculty of Medicine > Zahn-, Mund- und Kieferheilkunde > Poliklinik für Zahnärztliche Prothetik
Subjects:	Medical sciences Medicine
Uncontrolled Keywords:	Keywords Language Single-shade universal composites ; Color stability ; eLAB system ; Staining solutions ; Surface roughness English
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/81023