{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T17:12:12Z","timestamp":1789233132968,"version":"build-2803163510"},"reference-count":32,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T00:00:00Z","timestamp":1765756800000},"content-version":"vor","delay-in-days":14,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical &amp;amp; Exp Dental Res"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Recently, CAD\/CAM materials have become popular in dental clinics; however, information about their fracture resistance as post\u2010crowns remains limited. This study compared the initial fracture resistance of potential single\u2010piece post\u2010crown materials made with CAD\/CAM milling to sound teeth.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Fifty freshly extracted, non\u2010carious human central incisor teeth underwent endodontic treatment. The roots were then randomly divided into five groups based on the post systems: the control group included teeth filled only with gutta\u2010percha. Monoblock post\u2010crowns were made using four different systems for the other groups: LDS (IPS e.max CAD\u00ae, lithium disilicate glass\u2010ceramic), YTZP (inCoris ZI\u00ae, Yttrium tetragonal zirconia polycrystal), RNC (Lava Ultimate\u00ae, resin\u2010based nanoceramic), and PICN (VITA Enamic\u00ae, polymer\u2010infiltrated ceramic network). The post\u2010crowns were cemented with resin cement and tested with a universal testing machine at a crosshead speed of 1.0 mm\/min. Data analysis used one\u2010way ANOVA and multiple comparison post\u2010hoc Tukey tests (\n                      <jats:italic>\u03b1<\/jats:italic>\n                      \u2009=\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Significant differences were found between the groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). The control group exhibited the highest fracture resistance (749.25\u2009\u00b1\u2009225.02 N). YTZP showed similar resistance to the control (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.99) and LDS (447.28\u2009\u00b1\u2009168.72 N,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.081), but was significantly higher than RNC (343.79\u2009\u00b1\u2009157.08 N,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.0051) and PICN (348.78\u2009\u00b1\u2009157.44 N,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.0059). LDS, RNC, and PICN did not differ significantly. YTZP experienced more non\u2010repairable fractures (5\/10), while PICN predominantly failed in a repairable manner (9\/10).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>All CAD\/CAM post\u2010crowns exceeded functional loads for the anterior region. YTZP and LDS demonstrated greater strength, whereas PICN and RNC, despite being weaker, favored repairable failures\u2014highlighting the importance of balancing strength and clinical manageability.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/cre2.70247","type":"journal-article","created":{"date-parts":[[2025,12,16]],"date-time":"2025-12-16T05:46:07Z","timestamp":1765863967000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Comparative Study on the Fracture Resistance of CAD\/CAM\u2013Fabricated Single\u2010Piece Post\u2010Crowns"],"prefix":"10.1002","volume":"11","author":[{"given":"Ali","family":"Erdem","sequence":"first","affiliation":[{"name":"Private Practice \u0130zmir T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet Selim","family":"Bilgin","sequence":"additional","affiliation":[{"name":"Private Practice \u0130zmir T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahim","family":"Ersoy","sequence":"additional","affiliation":[{"name":"Private Practice \u0130zmir T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erhan","family":"Dilber","sequence":"additional","affiliation":[{"name":"Faculty of Dentistry, Department of Prosthodontics Alanya Alaaddin Keykubat University Alanya T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ebru Nur","family":"I\u015f\u0131k","sequence":"additional","affiliation":[{"name":"Private Practice \u0130stanbul T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tan F\u0131rat","family":"Ey\u00fcbo\u011flu","sequence":"additional","affiliation":[{"name":"Department of Endodontics, Faculty of Dentistry Istanbul Medipol University Istanbul T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9623-6098","authenticated-orcid":false,"given":"Mutlu","family":"\u00d6zcan","sequence":"additional","affiliation":[{"name":"Clinic of Masticatory Disorders and Dental Biomaterials, Center for Dental Medicine University of Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,12,15]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3913(07)60050-X"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0722.1990.tb00954.x"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-013-1065-5"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1080\/26415275.2021.1932510"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3913(10)60080-7"},{"issue":"1","key":"e_1_2_9_7_1","first-page":"e1","article-title":"A Study on Stress Distribution to Cement Layer and Root Dentin for Post and Cores Made of CAD\/CAM Materials With Different Elasticity Modulus in the Absence of Ferrule","volume":"11","author":"Andrade G. 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