{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T19:02:54Z","timestamp":1791831774342,"version":"4.3.4"},"reference-count":31,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["European J Oral Sciences"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Three\u2010dimensional (3D) printing is widely used in dental restorations; however, optimization of photoinitiator concentration and post\u2010curing protocols remains critical to achieve a balance between mechanical and esthetic performance. This study evaluated the combined effect of diphenyl(2,4,6\u2010trimethylbenzoyl)phosphine oxide (TPO) concentration and post\u2010curing time on mechanical properties and color stability of a 3D\u2010printed restorative resin. A commercial photoinitiator\u2010free resin (BioPrint Prov, Horus 3D) was supplemented with TPO at 0.5, 1.0, and 1.5\u00a0wt% and fabricated using a digital light processing printer. Specimens were post\u2010cured for 30, 45, or 60\u00a0min under UV light, while non\u2010post\u2010cured (NoPC) samples served as controls. Flexural strength and elastic modulus were evaluated using a three\u2010point bending test. Color stability and translucency were assessed using spectrophotometry (CIELab\/\u0394\n                    <jats:italic>E<\/jats:italic>\n                    <jats:sub>00<\/jats:sub>\n                    ) under storage conditions, including dry storage, water immersion, and coffee aging. Data were analyzed using two\u2010way\n                    <jats:sc>anova<\/jats:sc>\n                    and Tukey's test. The 1.0% TPO and 30\u00a0min post\u2010curing combination provided best performance, with highest flexural strength and lowest color change after staining. Higher TPO concentration and prolonged post\u2010curing increased color alteration and yellowness. NoPC specimens showed inferior mechanical properties and greater discoloration. Translucency remained more stable in post\u2010curing groups. These findings indicate optimized photoinitiator concentration and controlled post\u2010curing time improve mechanical and esthetic outcomes in 3D\u2010printed restorative resins.\n                  <\/jats:p>","DOI":"10.1111\/eos.70125","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T11:57:56Z","timestamp":1786363076000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Optimizing diphenyl(2,4,6\u2010trimethylbenzoyl)phosphine oxide concentration and post\u2010curing time to balance mechanical properties and color stability in a three\u2010dimensional\u2010printed restorative resin"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7926-5735","authenticated-orcid":false,"given":"Eloah Nunes","family":"de Almeida","sequence":"first","affiliation":[{"name":"Laboratory for Applied Biotechnology (LABA UFF), School of Dentistry Federal Fluminense University Niter\u00f3i Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-3794-3335","authenticated-orcid":false,"given":"Vinicius da N\u00f3brega","family":"Marques","sequence":"additional","affiliation":[{"name":"Laboratory for Applied Biotechnology (LABA UFF), School of Dentistry Federal Fluminense University Niter\u00f3i Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-0692-5973","authenticated-orcid":false,"given":"Ido Luiz de Azevedo","family":"Feiten","sequence":"additional","affiliation":[{"name":"Laboratory for Applied Biotechnology (LABA UFF), School of Dentistry Federal Fluminense University Niter\u00f3i Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3846-4786","authenticated-orcid":false,"given":"Andr\u00e9 Luis","family":"Faria\u2010e\u2010Silva","sequence":"additional","affiliation":[{"name":"School of Dentistry Universit\u00e9 Laval Quebe City Quebec Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8442-3497","authenticated-orcid":false,"given":"Larissa Maria","family":"Cavalcante","sequence":"additional","affiliation":[{"name":"Laboratory for Applied Biotechnology (LABA UFF), School of Dentistry Federal Fluminense University Niter\u00f3i Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7154-8845","authenticated-orcid":false,"given":"Luis Felipe","family":"Schneider","sequence":"additional","affiliation":[{"name":"Laboratory for Applied Biotechnology (LABA UFF), School of Dentistry Federal Fluminense University Niter\u00f3i Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,10]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2025.01.006"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.4012\/dmj.2019\u2010123"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2020.11.030"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2023.03.011"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/mame.201600553"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.addma.2020.101736"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpor.2018.12.004"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jbm.a.37277"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.3390\/polym14050979"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2018.09.015"},{"key":"e_1_2_8_12_1","unstructured":"FDI.Federation 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