ArticleJournal of dental research, dental clinics, dental prospects2026
Color Stability of Multi-Layered Zirconia Versus Lithium Disilicate Glass Ceramic: An in Vitro Study.
Article in Journal of dental research, dental clinics, dental prospects, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Patients who receive ceramic restorations use daily oral care products or plaque-control agents, which may cause discoloration of these restorations. The present study assessed the color stability of multi-layered zirconia and lithium disilicate pressable ceramic after 28 days of immersion in chlorhexidine, coffee, and soda. Methods: A disc measuring 2 mm in thickness and 10 mm in diameter was designed to fabricate 30 discs, divided into two groups based on the ceramic material: multi-layered (ML) zirconia and lithium disilicate (LD). Each group was further subdivided into three subgroups based on the staining solution: chlorhexidine, Cola, and coffee. The samples were immersed in staining liquids at room temperature for 28 days. Color was measured immediately at t Results: The greatest ∆E was observed in LD specimens immersed in chlorhexidine (5.65), followed by LD specimens immersed in coffee (5.44). The lowest ∆E was observed for ML zirconia specimens immersed in coffee (0.64). Significant differences were observed between ∆E values of all tested groups and subgroups ( Conclusion: ML zirconia exhibited significantly higher color stability than LD pressable ceramic after being subjected to simulated 28 months of beverage consumption and using chlorhexidine. Clinical Significance: Multi-layered zirconia exhibited higher resistance to discoloration than lithium disilicate pressable ceramic. Dental professionals should inform patients about the effects of chlorhexidine, Cola, and coffee on lithium disilicate pressable restorations.
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