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Wear Pattern-Associated Color Stability of Prefabricated Composite Veneers VS Ceramic Veneers

Now online in the Journal of Prosthodontics, an open access article co-authored by ACP member Hongseok An, DDS, MSD. This research article evaluated the effect of different surface wear patterns on the discoloration tendency of two different prefabricated composite veneers and lithium disilicate ceramic veneers.

To compare wear pattern and discoloration, two prefabricated composite resin veneers (Visalys Veneer Chairside and Componeer) were compared to lithium disilicate veneers (IPS) in vitro. For each material, n = 60 samples were allocated to different test groups, and n = 10 specimens per group went through different wear tests (abrasion, abrasion followed by erosion, erosion, and erosion followed by abrasion).

Mechanical abrasion tests were conducted using a toothbrush simulator, while erosive effects were carried out by citric acid. For discoloration tests, a tobacco-coffee staining solution was made. Specimens were stored in the coffee-tobacco solution for 21 days. Color measurements were performed with VITA Easyshade.

Prefabricated composite resin veneers revealed a low level of discoloration tendency after different wear tests. Nevertheless, in most cases the lowest discoloration tendency was found in specimens made from lithium disilicate.

Dederichs M, Viebranz S, An H, Guentsch A, Kuepper, H. Wear pattern-associated color stability of prefabricated composite veneers versus ceramic veneers. J Prosthodont. 2022; 1– 7. https://doi.org/10.1111/jopr.13617

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