ArticleBMC oral health2026
Effect of resin cement shade and tooth-shaded background on the final color and optical properties of high-translucency lithium-based CAD/CAM ceramics.
Article in BMC oral health, 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
backgroundThis study aimed to evaluate the effects of ceramic composition, resin cement shade, and tooth-shaded background on the optical properties and color differences of high translucent (HT) lithium-based ceramics.
methodsA total of 192 specimens were prepared from four CAD/CAM ceramics: advanced lithium disilicate, lithium disilicate, and two zirconia-reinforced lithium silicate ceramics. The relative translucency parameter (RTP) and opalescence (OP) were evaluated using a digital spectrophotometer. Specimens were evaluated using two resin cement shades (opaque and translucent) and two tooth-shaded backgrounds (A1 and A3). Color differences (ΔE₀₀) between baseline and after cementation measurements were calculated using the CIEDE2000 formula. Data were analyzed using one-way and three-way ANOVA (p < 0.05).
resultsCeramic material significantly influenced RTP and OP values (p < 0.05). Three-way ANOVA revealed significant main effects of material and cement shade (p < 0.001), as well as a significant material × tooth-shaded background interaction (p = 0.013). Opaque cement resulted in significantly higher color differences than translucent cement across all materials and backgrounds (p < 0.05). Higher ΔE₀₀ values were found on the A3 background.
conclusionsThe final color and optical properties of HT lithium-based ceramics were influenced by ceramic composition and resin cement shade. These findings may help clinicians optimize cement shade and material selection for improved esthetic outcomes.
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