{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T09:04:25Z","timestamp":1775811865267,"version":"3.50.1"},"reference-count":62,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T00:00:00Z","timestamp":1775779200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Long-term aesthetic success in dentistry largely depends on the color stability of restorative materials. This study investigated the color changes (\u0394E00) of resin nanoceramic and lithium disilicate ceramic restorative materials used in computer-aided design and computer-aided manufacturing (CAD\/CAM) systems following beverage immersion and after repolishing. One hundred specimens were prepared from lithium disilicate (Initial LiSi Block) and resin nanoceramic (Cerasmart), and polished. The specimens were divided into ten groups according to material and beverage type (n = 10) and immersed in distilled water, cola, tea, coffee, and turnip juice at 37 \u00b0C for 3 months. Color values were recorded at baseline, 1 week, 1 month, and 3 months, and after repolishing. \u2206E00 values were calculated using the CIEDE2000 color difference formula. Data were analyzed using three-way repeated measures ANOVA and post hoc Tukey and Bonferroni tests (\u03b1 = 0.05). Material type, beverage type, and immersion time significantly affected color stability (p &lt; 0.05). The highest \u2206E00 observed in the resin nanoceramic\u2013tea group at 3 months (\u0394E00 = 11.39 \u00b1 1.76). Lithium disilicate demonstrated better color stability. After repolishing, all \u0394E00 values were below the clinically acceptable limit (\u0394E00 \u2264 1.8). Repolishing may help maintain the long-term aesthetic success of dental restorations in the oral environment.<\/jats:p>","DOI":"10.3390\/ma19081519","type":"journal-article","created":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T07:55:12Z","timestamp":1775807712000},"page":"1519","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Beverage Immersion and Repolishing on the Color Stability of CAD\/CAM Restorative Materials: An In Vitro Study"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4963-2706","authenticated-orcid":false,"given":"Umut","family":"Da\u011fdeviren","sequence":"first","affiliation":[{"name":"Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Ankara 06490, T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mine Bet\u00fcl","family":"\u00dc\u00e7ta\u015fl\u0131","sequence":"additional","affiliation":[{"name":"Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Ankara 06490, T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-0196-3933","authenticated-orcid":false,"given":"\u0130rem","family":"K\u00f6kl\u00fc Da\u011fdeviren","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e932745","DOI":"10.12659\/MSM.932745","article-title":"Assessment of color stainability of computer-aided design and computer-aided manufacturing (CAD\/CAM) ceramic materials after hot and cold coffee immersion at different time intervals","volume":"27","author":"Adawi","year":"2021","journal-title":"Med. 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