Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners.

Polymers (Basel) · 2024 · PMC11054520 · PMID 38674987

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a clear trendno p-value reported

Repeated Measures of Color Change ΔE* The data present a clear trend in color change (Δ E* ) over the four time points.

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