Effects of staining and artificial aging on optical properties of gingiva-colored resin-based restorative materials.

Clin Oral Investig · 2022 · PMC9643207 · PMID 35882680

Europe PMC DOI

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failed to reach statistical significancep < 0.05actually significant

Comparing T0–T1 and T1–T2 observation times, higher mean Δ E 00 and Δ E ab occurred in the first interval T0–T1 but failed to reach statistical significance except in the case of Beautifil which showed significantly higher Δ E ab at T0–T1 after staining in wine ( p < 0.05).

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did not reach statistical significanceno p-value reported

In most cases, differences in Δ E 00 and Δ E ab did not reach statistical significance between observation intervals, except for Beautifil after wine/coffee staining (T0–T1: Δ E 00 = 3.0; T0–T2: Δ E 00 range 4.4–5.3; T1–T2: Δ E 00 range 1.6–2.5) and Nexco after coffee staining which exhibited statistically greater Δ E 00 at T0–T2 (mean Δ E 00 = 1.3) compared to T0–T1 (mean Δ E 00 = 0.9).

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