Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2021 Mar;33(2):394-400.
doi: 10.1111/jerd.12621. Epub 2020 Aug 25.

Color match using instrumental and visual methods for single, group, and multi-shade composite resins

Rubinya Sundar Iyer  1 , Vinti Rajendra Babani  1 , Peter Yaman  1 , Joseph Dennison  1
Affiliations
Free article

Color match using instrumental and visual methods for single, group, and multi-shade composite resins

Rubinya Sundar Iyer et al. J Esthet Restor Dent. 2021 Mar.
Free article

Abstract

Objective: To evaluate the shade match of three composite resin restorative materials to bi-layered acrylic teeth instrumentally and visually.

Materials and methods: Three composite materials-Omnichroma [OM], Tetric EvoCeram [TE], and TPH Spectra ST [TS] were placed into occlusal preparations (5 mm diameter, 2 mm depth) on 15 bi-layered acrylic teeth per each shade A2, B1, B2, C2, and D3. The composites were placed in a single increment and cured using Bluephase G2 light. The L*, a*, and b* readings were obtained using VITA Easyshade V for the teeth and restorations; mean ΔE00 values were calculated and assessed using two-way analysis of variance with a test of simple effects with multiple comparisons for significance (P < .05). Three teeth were restored to anatomical form with each of the composites for the five shades and were subjectively graded by 30 evaluators as 1-best match, 2-intermediate, and 3-poorest match.

Results: In the instrumental evaluation, OM and TS showed lower ∆E00 values for lighter shades, whereas TE showed lower and similar ∆E00 values for all shades. In the visual evaluation, TE exhibited the best shade match for darker shades C2 and D3. OM and TS matched better with lighter shades.

Conclusion: Shade matching is composite and shade-dependent. Overall, TE matched the multiple shades better than the other two materials.

Clinical significance: Single and group shade composites displayed shade matching ability inferior to a multi-shade composite material, which may limit their use in highly esthetic clinical situations.

Keywords: blending; color; composite resin; esthetics; shade match.

PubMed Disclaimer

References

REFERENCES

    1. Joiner A. Tooth colour: a review of the literature. J Dent. 2004;32:3-12.
    1. Kim D, Park SH. Color and translucency of resin-based composites: comparison of A-shade specimens within various product lines. Oper Dent. 2018;43:642-655.
    1. Johnston WM, Reisbick MH. Color and translucency changes during and after curing of esthetic restorative materials. Dent Mater. 1997;13:89-97.
    1. Paravina RD, Westland S, Imai FH, Kimura M, Powers JM. Evaluation of blending effect of composites related to restoration size. Dent Mater J. 2006;22:299-307.
    1. Paravina RD, Westland S, Kimura M, Powers JM, Imai FH. Color interaction of dental materials: blending effect of layered composites. Dent Mater J. 2006;22:903-908.

Substances