A Comparative Evaluation of Shade Selection Using Digital Photography and the VITA 3D-Master Shade Guide: An In Vitro Study.

Cureus · 2026 · PMC13110053 · PMID 42037901

Europe PMC DOI

hedged sentence

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closest p · 0.0× alpha

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boldest claim

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highly significantP < 0.001actually significant

For the a* value, the Friedman test demonstrated a very highly significant difference among the groups (χ2 = 40.923, df = 2, P < 0.001).

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