3D-Printed Versus Conventional Dental Provisional Resins: A Comparative Study.

In general, the analyses in Table 3 show that: - Nanolab is significantly more susceptible to staining at ∆1 (1st immersion), especially with Cola soft drink and Energy Drink in treatments with Extrinsic pigment + Glaze and Glaze; - Duralay and PrintaX show more similar behavior, with less initial staining; - At ∆3 (2nd immersion), the differences between resins decrease considerably; - Nanolab shows a drastic reduction in ∆E from ∆1 to ∆3 in practically all scenarios (pattern A → B → C = highly significant); - Duralay with Extrinsic pigment + Glaze and Glaze also shows a significant reduction (A → B → C); - PrintaX with Polishing shows temporal stability (A → A → A), indicating less color variation over time.

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