{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T16:00:42Z","timestamp":1789920042567,"version":"4.0.1"},"reference-count":33,"publisher":"Maad Rayan Publishing Company","issue":"2","content-domain":{"domain":["joddd.tbzmed.ac.ir"],"crossmark-restriction":false},"short-container-title":["J Dent Res Dent Clin Dent Prospects"],"published-print":{"date-parts":[[2026,6,30]]},"abstract":"<jats:p>Introduction: Achieving accurate color matching is essential for the aesthetic success of zirconia-based restorations, especially in the anterior region. Surface treatments are commonly used to enhance the bond between zirconia and porcelain, but their impact on the final color perception remains unclear. This study evaluated the effects of three surface treatments (control, acid etching, and sandblasting) on the color characteristics of porcelain-veneered zirconia. Methods: Sixty zirconia samples were divided into three groups: no surface treatment (control), acid etching, and sandblasting. Color measurements were taken using the CIELab* color system, with a specific focus on the color difference (\u0394E) and the individual components of lightness (L), the red-green axis (a), and the yellow-blue axis (b). Results: The results showed that sandblasting resulted in the highest \u0394E value (1.84\u00b10.27), significantly greater than those of the control (\u0394E=0.77\u00b10.43) and acid etching (\u0394E=0.67\u00b10.22) groups (P&lt;0.05). Additionally, the sandblasted group exhibited a significant decrease in lightness (L=76.12), while the control group had a higher L value (L=77.85). No significant difference was observed between the acid-etched and control groups for any color component (P&gt;0.05). Conclusion: Sandblasting significantly altered the optical properties of zirconia, leading to noticeable changes in color, particularly in lightness. In contrast, acid etching had minimal impact on color changes. These findings have clinical implications for the aesthetic planning of zirconia-based restorations, particularly in the anterior region, as highly aesthetic areas, where precise color matching is crucial.<\/jats:p>","DOI":"10.34172\/joddd.44821","type":"journal-article","created":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T15:07:21Z","timestamp":1789916841000},"page":"133-139","update-policy":"https:\/\/doi.org\/10.34172\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of Different Surface Treatments of CAD\/CAM Zirconia Core on the Final Color of Porcelain-Veneered Restorations"],"prefix":"10.34172","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2591-3538","authenticated-orcid":true,"given":"Ali","family":"Barzegar","sequence":"first","affiliation":[{"name":"Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2094-0732","authenticated-orcid":true,"given":"Mehrnaz","family":"Motiei","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tahereh","family":"Ghaffari","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peyman","family":"Irankhah","sequence":"additional","affiliation":[{"name":"General Dental Practitioner, Private Practice, Tabriz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"20123","published-online":{"date-parts":[[2026,6,30]]},"reference":[{"key":"R1","first-page":"15","article-title":"Fracture strength of all-ceramic lithium disilicate and porcelain-fused-to-metal bridges for molar replacement after dynamic loading","volume":"10","author":"Chitmongkolsuk S","year":"2002","journal-title":"Eur J Prosthodont Restor Dent"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1067\/mpr.2003.50"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2016.09.025"},{"key":"R4","first-page":"26","article-title":"Ceramics for dental restorations-an introduction","volume":"77","author":"Arango-Santander S","year":"2010","journal-title":"Dyna"},{"key":"R5","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12367"},{"key":"R6","first-page":"86","article-title":"Effect of zirconia substructure design on the in vitro fracture load of molar zirconia core crowns","volume":"30","author":"Seyyedan K","year":"2012","journal-title":"J Dent Sch"},{"key":"R7","unstructured":"Anusavice KJ, Shen C, Rawls HR. 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