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Review
. 2022 Jan;34(1):42-54.
doi: 10.1111/jerd.12843. Epub 2021 Nov 29.

Color adjustment potential of resin composites: Optical illusion or physical reality, a comprehensive overview

Eman H Ismail  1 , Rade D Paravina  2
Affiliations
Review

Color adjustment potential of resin composites: Optical illusion or physical reality, a comprehensive overview

Eman H Ismail et al. J Esthet Restor Dent. 2022 Jan.

Abstract

Objective: The objective was to provide a comprehensive overview of color interactions between resin composite (RC) and its surroundings, analyze the design and results of respective research studies, and provide clinical and research recommendations.

Overview: Resin composite (RC) materials can adjust their color to that of surrounding enamel and dentin to a different extent. This phenomenon has been referred to as the "chameleon effect" in dental jargon, while color blending/adjustment/shifting/assimilation is more scientific terms. Studies that evaluated the color adjustment potential of RCs have employed different methods. This article discusses the (a) terminology used to describe color adjustment potential, (b) color science theories associated with color adjustment, (c) design of respective studies, including methods, specimens, and calculations, and (d) their outcome and reported results. Clinical implications and future directions related to the color adjustment potential of RCs are also provided.

Conclusions: Factors that influence the color adjustment potential of RCs are classified into three categories: (1) material type, (2) cavity design, and (3) the substrate surrounding the restoration. Each factor can be optimized to enhance color matching and the restorative outcome.

Clinical significance: A material that blends well and exhibits pronounced color adjustment potential would likely improve the color match and therefore the esthetic outcome. These materials "work" for dental professionals by compensating for their suboptimal shade matching and/or lack of an excellent match in the used material. This review aims to further the understanding of the inherent properties of RCs and allow clinicians to fully utilize them to place RC restorations and minimize the time spent on modifying or replacing existing ones. Hence, the outcomes would encompass the increased chairside efficiency, enhanced esthetic outcome, and patient satisfaction.

Keywords: chameleon effect; color adjustment; resin composite; structural color.

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References

REFERENCES

    1. Paravina RD. Critical appraisal. color in dentistry: match me, match me not. J Esthet Restor Dent. 2009;21(2):133-139. doi:10.1111/j.1708-8240.2009.00246.x
    1. Lee YK, Yu B, Lee SH, Cho MS, Lee CY, Lim HN. Shade compatibility of esthetic restorative materials-a review. Dent Mater. 2010;26(12):1119-1126. doi:10.1016/j.dental.2010.08.004
    1. Browning WD, Contreras-Bulnes R, Brackett MG, Brackett WW. Color differences: polymerized composite and corresponding Vitapan classical shade tab. J Dent. 2009;37(Suppl 1):e34-e39. doi:10.1016/j.jdent.2009.05.008
    1. Kim B-J, Lee Y-K. Influence of the shade designation on the color difference between the same shade-designated resin composites by the brand. Dent Mater. 2009;25(9):1148-1154.
    1. Hall NR, Kafalias MC. Composite colour matching: the development and evaluation of a restorative colour matching system. Aust Prosthodont J. 1991;5:47-52.

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