Evaluation of the Colour Stability and Surface Roughness of Polymethylmethacrylate and Indirect Composites With and Without Ageing: An In-Vitro Study.

Cureus · 2024 · PMC11438527 · PMID 39347209

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highly significantno p-value reported

PMMA's very low p-value (0.002) suggests a highly significant change in ΔE after ageing.

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