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. 2021 Mar;33(2):269-276.
doi: 10.1111/jerd.12659. Epub 2020 Sep 29.

Analysis of the color matching of universal resin composites in anterior restorations

João Luiz Bittencourt de Abreu  1   2   3 , Camila Sobral Sampaio  4 , Ernesto Byron Benalcázar Jalkh  2   5 , Ronaldo Hirata  2
Affiliations

Analysis of the color matching of universal resin composites in anterior restorations

João Luiz Bittencourt de Abreu et al. J Esthet Restor Dent. 2021 Mar.

Abstract

Objective: To evaluate color matching of universal composite restorations performed in anterior teeth using two evaluation methods.

Materials and methods: Sixty class III preparations were made on denture central incisors with different shades (A1-A3) and restored with multishade (Tetric Evoceram, Filtek Universal, and TPH Spectra Universal) and single-shade (Omnichroma) universal composites (n = 5). For photographic analysis, a digital photograph of each specimen was taken under standardized set-up. Color measurements were taken in the center of the restoration, and in the tooth surface 1.0 mm adjacent from the tooth/restoration margin. CIELab coordinates were recorded and color difference analysis (ΔE) was made using the CIEDE-2000 formula. For visual analysis, calibrated observers performed visual scoring of color matching and differences were graded as 0:excellent match; 1:very good match; 2:not so good match; 3:obvious mismatch; 4:huge mismatch. All data were statistically analyzed using a linear mixed model analysis with a confidence interval of 95%.

Results: For photographic analysis, Omnichroma showed the highest ΔE compared to the other composites for all shades (P < .05), without difference among experimental groups regarding tooth shade. For visual analysis, Omnichroma showed the highest scores (P < .05) for all teeth shades, without differences between the other groups. Furthermore, there were no differences between visual scores for different shades of a same resin composite group.

Conclusions: Multishade universal composites presented higher color matching than the single shade universal composite. There were no differences of color matching for different tooth shades for all composites.

Clinical significance: Universal composites with increased color matching may be helpful to simplify anterior restorations, minimizing clinical errors.

Keywords: blending; color; color matching; optical properties; resin composite.

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References

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