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Thirty crowns were fabricated from two milled materials (Vita Enamic; Cerasmart) and one printed material (Irix Max) (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200910). Marginal and internal fit were assessed using a three\u2010dimensional superimposition technique, while surface roughness was measured with an optical profilometer. After cementation, specimens underwent thermocycling for 3600\u2009cycles, followed by 720,000 mechanical loading cycles. Fracture resistance was tested using a universal testing machine and failure modes were recorded. Statistical analysis was performed using one\u2010way ANOVA test.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>No statistically significant differences were observed in marginal fit among the groups. Cerasmart showed significantly higher internal gaps but smoother surfaces than Vita Enamic and Irix Max. Vita Enamic exhibited significantly greater fracture resistance compared to Cerasmart. All failures were catastrophic.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>All crowns exhibited comparable marginal fit. Cerasmart demonstrated smoother surfaces but inferior internal adaptation and fracture strength, whereas Vita Enamic provided superior mechanical performance.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/adj.70052","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T10:13:25Z","timestamp":1778148805000},"page":"252-262","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Marginal and Internal Fit, Surface Roughness and Fracture Resistance of Hybrid Dental Crown Materials Fabricated With Milling and 3D\u2010Printing Systems: An In\u00a0Vitro Study"],"prefix":"10.1111","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-6756-0415","authenticated-orcid":false,"given":"Abdullah M.","family":"Al\u2010Rifai","sequence":"first","affiliation":[{"name":"Faculty of Dentistry Jordan University of Science and Technology  Irbid 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