Evaluation of the accuracy of direct digital impressions versus conventional silicone impressions for post-and-core with different root space diameters: a preliminary study in vitro.

BMC Oral Health · 2026 · PMC12879443 · PMID 41501705

Europe PMC DOI

hedged sentences

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closest p · 0.0× alpha

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boldest claim

The sentences

highly significantp = 1.9 × 10−10actually significant

In the model fitted to untransformed RMS values, the main effect of diameter was not significant ( χ2 = 0.93, df = 3, p = 0.820), the main effect of depth was borderline ( χ2 = 6.70, df = 3, p = 0.080), and there was a highly significant diameter-by-depth interaction ( χ2 = 56.89, df = 6, p = 1.9 × 10−10).

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did not reach statistical significancep ≈ 0.070so close (0.05 < p ≤ 0.1)

showed a trendno p-value reported

For the 1.0-mm, only the 1.65-mm and 5-mm depths were available; the increase in RMS from 24.1 ± 2.5 μm to 42.7 ± 13.8 μm showed a trend towards higher values at 5 mm but did not reach statistical significance ( p ≈ 0.070).

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