{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:16:51Z","timestamp":1790727411301,"version":"4.1.0"},"reference-count":48,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T00:00:00Z","timestamp":1781308800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T00:00:00Z","timestamp":1781308800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003170","name":"Stiftelsen f\u00f6r Kunskaps- och Kompetensutveckling","doi-asserted-by":"publisher","award":["20250008"],"award-info":[{"award-number":["20250008"]}],"id":[{"id":"10.13039\/501100003170","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To evaluate the fracture resistance, fracture modes, and crystalline phase changes of zirconia one\u2010piece implants (OPI) and bone\u2010level (BLTPI) or tissue\u2010level, two\u2010piece implants (TLTPI), with ceramic (C) or titanium (T) abutment screws after dynamic preloading in a moist environment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>Dynamic preloading under moist conditions and subsequent static load\u2010to\u2010fracture testing were performed to evaluate fracture resistance and fracture mode. Scanning electron microscopy (SEM) analysis of fracture surfaces was employed to supplement the observations of macroscopic fracture modes. Crystalline phase changes were assessed using micro\u2010Raman spectroscopy. Specimen preparations were performed in accordance with ISO 14801:2016. Five different ceramic (zirconia) implant designs were divided into the following groups: OPI, BLTPI (BLC, BLT), TLTPI (TLC, TLT). One\u2010way and two\u2010way ANOVA tests were used for comparisons and factor effect analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Fracture resistance (N) and bending moment (N\u2009cm) differed significantly among the implant groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), following the order TLTPI (775.2\u2009\u00b1\u200971\u2009N)\u2009&gt;\u2009OPI (605.7\u2009\u00b1\u200937\u2009N)\u2009&gt;\u2009BLTPI (498.3\u2009\u00b1\u200993\u2009N). Within the two\u2010piece implants (TPI), tissue\u2010level designs (TL) outperformed bone\u2010level designs (BL), while designs with different abutment screw materials showed no significant difference (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.982).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Within the limitations of this in\u00a0vitro study, the evaluated zirconia\u2010based OPI, BLTPI, and TLTPI systems demonstrate sufficient fracture resistance to support further clinical investigation. Implant\u2010level design (TL vs. BL) influences mechanical performance, whereas the influence of abutment screw material (ceramic vs. titanium) is less pronounced and varies according to the implant\u2010level design.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/clr.70149","type":"journal-article","created":{"date-parts":[[2026,6,14]],"date-time":"2026-06-14T02:55:42Z","timestamp":1781405742000},"page":"1081-1095","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Effect of Implant Design on Fracture Resistance, Mode, and Crystal Structure of One\u2010 and Two\u2010Piece Zirconia Implants With Ceramic or Titanium Abutment Screws: An In\u00a0Vitro Study"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7726-7086","authenticated-orcid":false,"given":"Abdulaziz","family":"Gul","sequence":"first","affiliation":[{"name":"Department of Materials Science and Technology, Division 2, Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"},{"name":"Department of Oral and Maxillofacial Surgery and Oral Medicine, Division 2, Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"},{"name":"Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine Umm Al\u2010Qura University  Makkah Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6260-473X","authenticated-orcid":false,"given":"Evaggelia","family":"Papia","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Technology, Division 2, Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-8409-1634","authenticated-orcid":false,"given":"Siamak","family":"Eqtesadi","sequence":"additional","affiliation":[{"name":"The Nordic Institute of Dental Materials, NIOM  Oslo 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