Akademik Veri Yönetim Sistemi
American journal of dentistry, cilt.38, sa.4, ss.228-236, 2025 (SCI-Expanded, Scopus)
PURPOSE: To evaluate the laboratory effects of commonly used beverages on the surface roughness and color change of leucite-reinforced Computer Aided Design-Computer Aided Manufacturing (CAD-CAM) material with different laboratory surface finishes. METHODS: In this study, all the IPS Empress CAD-CAM ceramic block specimens were treated with a glaze layer and then randomly divided into three groups. The samples (n=25) in Group 1 (Control) were not treated (glaze layer was left). The glaze layer of the other samples (n=50) was abraded by the same researcher. While the samples in Group 2 were treated with Optrafine (optrafine after glazing); those in Group 3 were subjected to surface treatment with Eve polishing kits (Eve kit after glazing). The samples were then immersed in five different beverages (cola, coffee, tea, fruit juice and distilled water) and color (ΔE₀₀) and surface roughness (Ra) measurements were repeated after 18, 36 and 54 hours. Color measurements of all specimens were measured using a dental spectrophotometer and surface roughness (Ra values) through profilometry. RESULTS: ANOVA revealed that the interactions of time, time and surface finishing protocols, time and solution, and the combination of time, surface finishing process, and solution were statistically significant (P< 0.001). The least color change (ΔE₀₀= 0.16) and smoothest surfaces (Ra= 0.38) µm were observed in samples with the glaze surface finishing protocol, while the highest color change (ΔE₀₀=2.54) and surface roughness (Ra=2.17 µm) values were found in samples with the Eve surface finishing protocol. The leucite-reinforced CAD-CAM ceramic samples with a glazed surface finish showed the highest color stability and the lowest surface roughness. Color change was measured within clinically acceptable limits in all groups (AT, ΔE₀₀≤ 1.8 ), except for Eve surface-finished tea group (2.54) between 18-36 hours. CLINICAL SIGNIFICANCE: The esthetic and functional quality of prosthetic restorations is closely related to the surface properties of CAD-CAM ceramic materials. Clinicians must be familiar with the properties and performance of various CAD-CAM materials to make the best choice for their patients.