Akademik Veri Yönetim Sistemi
The International journal of prosthodontics, 2025 (SCI-Expanded, Scopus)
Purpose: The purpose of this study was to evaluate the effects of try-in pastes and the polymerization process of resin cements in different shades on the final color of 3D-printed resin-based restorations with various thicknesses by assessing the color match between try-in pastes and resin cements, and the color match between before and after polymerization of resin cements. Materials and Methods: A total of 160 specimens were prepared from a 3D-printed photopolymer resin according to restoration thicknesses (0.3, 0.5, 0.7, and 1 mm) and cement shades (universal-A2, clear, white, and opaque) (n=10). The color parameters were measured under D65 lighting, and the color match values were calculated using the CIEDE2000 formula. Statistical analysis was performed using two-way ANOVA and Tukey HSD tests (α=0.05). Results: A significant interaction was found between restoration thickness and cement shade for the color match between try-in pastes and polymerized cements (P<0.05). At thinner thicknesses, clear and A2-universal cements showed better color match. At 0.7 mm and 1 mm, color match improved for all groups, especially clear and white cements, falling below the perceptibility threshold (0.8). No interaction was found between restoration thickness and cement shade on the color match before and after cement polymerization (P>0.05). All groups showed values below the perceptibility threshold (0.8). Conclusions: Try-in pastes may not always be ideal for predicting the final color outcome of 3D-printed photopolymer restorations. Shade matching should be verified using the resin cement before the polymerization to improve esthetic predictability.