{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,29]],"date-time":"2026-10-29T08:02:47Z","timestamp":1793260967773,"version":"4.5.0"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,2,20]],"date-time":"2024-02-20T00:00:00Z","timestamp":1708387200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,2,20]],"date-time":"2024-02-20T00:00:00Z","timestamp":1708387200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BDJ Open"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Objective\/aim<\/jats:title>\n                <jats:p>Evaluating the optical behavior and marginal discoloration of a Single-shade universal resin composite over 12 months. To achieve this, a split-mouth with a double-blinded randomized strategy was employed.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>Twenty adult patients, each presenting with at least two caries lesions in their posterior teeth, were selected and randomly subdivided into two identical groups: Group I received Single-shade universal resin composite (Omnichroma), and Group II received multi-shade nanohybrid resin composite (Tetric\u00aeN-Ceram). Color measurements and marginal discoloration were assessed visually by three blinded operators at baseline followed after 1,3,6,9, and 12\u2011month periods utilizing the Modified United States Public Health Services (USPHS) criteria. Statistical analysis was adopted utilizing the Wilcoxon test with a 0.05 significance level.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The two groups revealed non-statistically significant differences up to 6 months regarding color match and color stability. After 9 and 12 months, the multi-shade group demonstrated a statistically significant higher prevalence of color match (Alpha) scores than the single-shade universal group. Regarding marginal discoloration, all restorations in the two groups had no discoloration (Alpha scores).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Discussion\/conclusion<\/jats:title>\n                <jats:p>Since the percentage of Alpha and Bravo scores was considered clinical success, both the single-shade universal and the multi-shade nanohybrid resin composites demonstrated satisfactory optical performance and marginal discoloration as posterior restorations after a 12-month follow-up period.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1038\/s41405-024-00184-w","type":"journal-article","created":{"date-parts":[[2024,2,20]],"date-time":"2024-02-20T12:04:44Z","timestamp":1708430684000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Optical behavior and marginal discoloration of a single shade resin composite with a chameleon effect: a randomized controlled clinical trial"],"prefix":"10.1038","volume":"10","author":[{"given":"Ruba Salah","family":"Anwar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasser Fathi","family":"Hussein","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9750-8115","authenticated-orcid":false,"given":"Mona","family":"Riad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,2,20]]},"reference":[{"key":"184_CR1","doi-asserted-by":"publisher","first-page":"1033","DOI":"10.4012\/dmj.2020-364","volume":"40","author":"S Kobayashi","year":"2021","unstructured":"Kobayashi S, Nakajima M, Furusawa K, Tichy A, Hosaka K, Tagami J. Color adjustment potential of single-shade resin composite to various-shade human teeth: Effect of structural color phenomenon. Dent Mater J. 2021;40:1033\u201340. https:\/\/doi.org\/10.4012\/dmj.2020-364","journal-title":"Dent Mater J"},{"key":"184_CR2","doi-asserted-by":"publisher","first-page":"465","DOI":"10.1111\/jerd.12488","volume":"31","author":"N Pereira Sanchez","year":"2019","unstructured":"Pereira Sanchez N, Powers JM, Paravina RD. Instrumental and visual evaluation of the color adjustment potential of resin composites. J Esthet Restor Dent. 2019;31:465\u201370. https:\/\/doi.org\/10.1111\/jerd.12488","journal-title":"J Esthet Restor Dent"},{"key":"184_CR3","unstructured":"MB Evans. The Visual and Spectrophotometric Effect of External Bleaching on OMNiCHROMA Resin Composite and Natural Teeth. Thesis Submitted to the School of Dentistry At West Virginia University In Partial fulfillment of the requirements For the degree of Master of Science In Prosthodontics. 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All procedures involving human participants were performed following the ethical standards of the Research Ethics Committee of the Faculty of Dentistry, Minia University, Egypt (Ref. no. 420). A written consent was obtained from every patient to ensure their knowledge about participating in this study and that they were informed about its nature.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"A clear written consent informing about the procedure, periods of recalls and the use of intraoral photos for scientific use, was obtained from every patient to ensure their knowledge about participating in this study and that they were informed about its nature.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}],"article-number":"11"}}