Evaluation of color matching of single-shade resin composite to natural teeth using instrumental and visual techniques

Lina A. Tayyem (), Faleh A. Sawair (), Ahmad A. Hamdan (), Kifah D. Jamani () and Susan Hattar ()

International Journal of Innovative Research and Scientific Studies, 2025, vol. 8, issue 3, 2697-2706

Abstract: To investigate the blending capacity of a supra-nano filled resin composite with the surrounding natural tooth structure, sixty extracted teeth were randomly divided into two groups. Standardized class V cavities were restored with two types of resin composites: single-shade Omnichroma (experimental group-OMN) and multi-shade Estelite Σ Quick (control group-MS). Teeth were evaluated instrumentally using the Vita Easyshade spectrophotometer, and calculations of color difference CIELAB and CIEDE2000 were performed. Visual assessment was conducted by six calibrated observers using a defined Likert scale from 0 to 4. Significant differences between the MS and OMN groups were noted for different color parameters. The color difference △Eab for the OMN group (14.37) was significantly higher than that of the MS group (10.04) with a p-value < 0.05. Analysis of the overall color difference △E00 revealed no significant difference between the OMN group (△E00=9.85) compared to the MS group (△E00=7.85). In visual assessment, the overall median reading for the MS group was 0.5 compared to 0.92 for the OMN group, with a p-value of 0.01. However, both values were located within the 0-1 category. The supra-nano resin composite (Omnichroma) showed a higher color difference value compared to the multi-shade composite when tested on natural teeth. Nevertheless, the visual results for both composites were within clinically acceptable levels. The single-shade resin composite might be considered a valuable substitute to simplify the restorative procedure in less demanding esthetic clinical situations.

Keywords: Color matching: Instrumental; Resin composite; Visual. (search for similar items in EconPapers)
Date: 2025
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