2025Journal articleFree to read

Color stability and surface roughness of novel single-shade universal composite resins exposed to staining solutions: an in vitro study.

Janson M, Liebermann A, Schoppmeier CM

The Saudi dental journal

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Abstract

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.

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Study type

In vitro / cell study

Lab experiments on cells or isolated systems.

Assigned automatically from the title, abstract and subject terms.

Topics

Processing, milling and quality

Matcha is a main subject here (named in the keywords).

Keywords and subject terms

Color stability Single-shade universal composites Staining solutions Surface roughness eLAB system single-shade composite color stability discoloration surface roughness staining solutions coffee red wine

Cite this study

Janson M, Liebermann A, Schoppmeier CM. (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. https://doi.org/10.1007/s44445-025-00035-w

DOI: 10.1007/s44445-025-00035-w · PubMed ID: 40663305 · Cited by 5 (OpenAlex)

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