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  • Research Article
    Color discrepancy of single-shade composites at different distances from the interface measured using cell phone images
    Márcia Luciana Carregosa Santana, Gabriella de Jesus Santos Livi, André Luis Faria-e-Silva
    Restor Dent Endod 2024;49(1):e7.   Published online January 24, 2024
    DOI: https://doi.org/10.5395/rde.2024.49.e7
    AbstractAbstract PDFPubReaderePub
    Objectives

    This study aimed to evaluate the impact of substrate color and interface distance on the color adjustment of 2 single-shade composites, Vittra APS Unique and Charisma Diamond One.

    Materials and Methods

    Dual disc-shaped specimens were created using Vittra APS Unique or Charisma Diamond One as the center composite, surrounded by shaded composites (A1 or A3). Color measurements were taken with a spectrophotometer against a gray background, recording the color coordinates in the CIELAB color space. Illumination with a light-correcting device and image acquisition using a polarizing filter-equipped cell phone were performed on specimens over the same background. Image processing software was used to measure the color coordinates in the center and periphery of the inner composite and in the outer composite. The color data were then converted to CIELAB coordinates and adjusted using data from the spectrophotometer. Color differences (ΔE00) between the center/periphery of single-shade and outer composites were calculated, along with color changes in single-shade composites caused by different outer composites. Color differences for the inner composites surrounded by A1 and A3 were also calculated. Data were analyzed using repeated-measures analysis of variance (α = 0.05).

    Results

    The results showed that color discrepancies were lowest near the interface and when the outer composite was whiter (A1). Additionally, Charisma Diamond One exhibited better color adjustment ability than Vittra APS Unique.

    Conclusions

    Color discrepancies between the investigated single-shade composites diminished towards the interface with the surrounding composite, particularly when the latter exhibited a lighter shade.

    Citations

    Citations to this article as recorded by  
    • Evaluation of color stability in single-shade composite resins using spectrophotometer and cross-polarized mobile photography
      Hatice Tepe, Ozge Celiksoz, Batu Can Yaman
      BMC Oral Health.2025;[Epub]     CrossRef
    • Comparative Evaluation of the Staining Resistance of Two Single-Shade Composites in Coffee and Chlorhexidine: A Spectrophotometric Analysis
      Unmesh Khanvilkar, Shrinath D Kulkarni, Siddhesh Bandekar, Ved M Talathi, Oshin Baghel, Priyanka Razdan, Seema Gupta
      Cureus.2025;[Epub]     CrossRef
    • Clinical Implications of Color Adjustment in Single-Shade Resins Post-Dental Bleaching: A Systematic Review
      Samille Biasi Miranda, Caroline de Farias Charamba Leal, Rodrigo Barros Esteves Lins, Marcos Antonio Japiassu Resende Montes
      Journal of Clinical Medicine.2025; 14(9): 3194.     CrossRef
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