{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T00:06:24Z","timestamp":1792109184665,"version":"4.4.0"},"reference-count":47,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T00:00:00Z","timestamp":1776643200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T00:00:00Z","timestamp":1776643200000},"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":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>This laboratory study investigated the effect of two different retentive heights of Ti\u2010base abutments (3.5 and 5.5\u2009mm) and crown heights (13 and 16\u2009mm) on the load at failure and survival of monolithic zirconia implant\u2010supported crowns replacing a maxillary central incisor.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Method<\/jats:title>\n                    <jats:p>\n                      Forty implant\u2010supported crowns were divided into four groups (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200910 each): short crown\/long abutment (SCLA), short crown\/short abutment (SCSA), long crown\/long abutment (LCLA), and long crown\/short abutment (LCSA). Specimens underwent thermal cycling and incremental mechanical cyclic loading starting at 450\u2009N increasing by 50\u2009N until failure. Load and cycles at failure, Weibull analysis, mode of failure, and fractographic assessments were performed.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Mean load at failure was highest for the SCSA group (536.9\u2009N\u2009\u00b1\u200978.4\u2009N), then SCLA (493.4\u2009\u00b1\u200953.2\u2009N) and LCLA (491.3\u2009\u00b1\u200940.7\u2009N), and lowest for the LCSA group (453.7\u2009N\u2009\u00b1\u20092.8\u2009N). The differences were statistically significant (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.035). Cycles at failure showed significant differences among groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), with SCSA demonstrating the greatest cycles at failure (72,492\u2009\u00b1\u200944,551\u2009cycles), then SCLA (43,630\u2009\u00b1\u200927,579\u2009cycles) and LCLA (37,706\u2009\u00b1\u200918,826\u2009cycles), and LCSA the lowest (8399\u2009\u00b1\u20097308\u2009cycles). Short crowns showed abutment\/screw fractures, while longer crowns had more crown fractures.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Crown height significantly influenced load at failure and survival, with shorter crowns performing better. The retentive height of the Ti\u2010base abutment had less impact; however, shorter abutments provided better mechanical performance when paired with shorter crowns, suggesting careful consideration for anterior restorations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/clr.70130","type":"journal-article","created":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T11:44:05Z","timestamp":1776685445000},"page":"867-882","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The Effect of Crown Height and Retentive Height of Abutment on the Fracture Resistance of Fatigued Monolithic Zirconia Anterior Implant Crowns\u2014An In\u00a0Vitro Study"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5522-4659","authenticated-orcid":false,"given":"Esha","family":"Zahid","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3392-8641","authenticated-orcid":false,"given":"Jaafar","family":"Abduo","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Attila","family":"Gergely","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roy","family":"Judge","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carolina","family":"Perez\u2010Rodriguez","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph","family":"Palamara","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Dentistry and Health Sciences, Melbourne Dental School The University of Melbourne  Carlton Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,20]]},"reference":[{"issue":"1","key":"e_1_2_12_2_1","first-page":"110","article-title":"Effect of Titanium Base Abutment Height and Restorative Material on Torque Maintenance of Hybrid Abutment Restorations With Offset Implant Placement","volume":"40","author":"Aboelkhier M.","year":"2025","journal-title":"International Journal of Oral & Maxillofacial Implants"},{"key":"e_1_2_12_3_1","first-page":"616","article-title":"Zirconia Implant Abutment Fracture: Clinical Case Reports and Precautions for Use","volume":"22","author":"Aboushelib M. 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