{
  "abstract": "This study evaluated the effects of aging, coffee staining, and bleaching on the optical properties of injectable resin composites with varying filler types, resin matrix compositions, and shade-matching strategies. Six injectable resin composites and one conventional microhybrid composite were evaluated (n = 20 per material; 140 specimens in total). For each material, specimens were randomly allocated to two subgroups (n = 10): thermocycling or 12-day coffee staining followed by in-office bleaching. Disc-shaped specimens were fabricated, and baseline color, whiteness index, and translucency were recorded. Data were analyzed using repeated-measures ANOVA and one-way ANOVA, followed by Tukey’s HSD post hoc test for between-material comparisons (α = 0.05). Significant differences among materials were observed after aging, staining, and bleaching (p < 0.001). After aging, the multi-shade nanofilled FSF, group-shade nanohybrid NSF, and conventional microhybrid GDA showed the lowest color changes, whereas the one-shade composites showed the highest. Coffee staining reduced whiteness and translucency in all groups, with the greatest whiteness loss observed in the one-shade composites. Bleaching reduced staining-induced discoloration in all materials, most markedly in the one-shade nanohybrid CBF; however, residual color differences relative to baseline remained above the acceptability threshold in all materials. After bleaching, translucency in the supra-nanospherical OBF and EBF composites exceeded baseline values beyond the perceptibility threshold. Within the limitations of this in vitro study, the evaluated resin composites exhibited material-dependent changes in color, whiteness, and translucency following artificial aging, coffee staining, and bleaching, with incomplete recovery of baseline optical properties after bleaching.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Restorative Dentistry, Faculty of Dentistry, Mugla Sıtkı Koçman University, Mugla 48000, Türkiye"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Buse Kesgin",
      "orcid": "0000-0001-9152-4472"
    },
    {
      "affs": [
        0
      ],
      "name": "Başak Yazkan",
      "orcid": "0000-0003-4827-0547"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d2tnm8yxjwhpb.bib",
  "cited_by": 0,
  "doi": "10.3390/polym18212736",
  "fulltext_url": null,
  "id": "d2tnm8yxjwhpb",
  "issns": [
    "2073-4360"
  ],
  "landing_url": "https://www.mdpi.com/2073-4360/18/21/2736",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/d2tnm8yxjwhpb.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T00:24:10Z",
      "native_id": "10.3390/polym18212736",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4360/18/21/2736"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4360",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Optical Stability of Injectable Resin Composites with Different Shade-Matching Strategies",
  "title_text": "Optical Stability of Injectable Resin Composites with Different Shade-Matching Strategies",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T00:20:53Z",
  "url": "https://research.draconitic.com/paper/d2tnm8yxjwhpb",
  "venue": "Polymers",
  "versions": []
}