{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:46:58Z","timestamp":1787014018867,"version":"build-2736575974"},"reference-count":41,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T00:00:00Z","timestamp":1751932800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>The study aimed to compare the biomechanical behaviors in the all\u2010on\u2010four and all\u2010on\u2010six concept prostheses of different framework materials (cobalt\u2010chromium Co\u2010Cr, titanium Ti, and polyetheretherketone PEEK) and posterior implant angulation in the completely edentulous maxilla.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>According to the all\u2010on\u2010four and all\u2010on\u2010six concepts, four different three\u2010dimensional (3D) models were created for the completely edentulous maxilla. The posterior implants were positioned in the premolar region, 30\u00b0 and 45\u00b0 angled distally. The frameworks were designed and simulated using the material properties of Co\u2010Cr, Ti, and PEEK. A load of 200\u2009N in the palatobuccal direction was applied to the occlusal surface of the posterior implants bilaterally. The von Mises, maximum, and minimum principal stresses were obtained.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In both concepts, the stress values of the PEEK framework were significantly higher than the stress values of Co\u2010Cr and Ti frameworks in terms of implant, cortical bone, and abutment. The highest von Mises value between frameworks was determined in the Co\u2010Cr framework in the all\u2010on\u2010six concept. Implants with a 45\u00b0 angle in the posterior showed higher stress values than implants with a 30\u00b0 angle.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>As the number of implants increased, the stress on the implant and cortical bone decreased, while it increased on the abutment and prosthetic framework. The increase in the tilt angle of the posterior implants was directly proportional to the rise in stress concentration.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/cid.70078","type":"journal-article","created":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T07:09:45Z","timestamp":1751958585000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Comparison of Different Frameworks and Implant Angulations in All\u2010On\u2010Four and Six Concepts: A Finite Element Analysis"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6127-9303","authenticated-orcid":false,"given":"Cumhur","family":"Korkmaz","sequence":"first","affiliation":[{"name":"Department of Prosthodontics University of Health Sciences, Hamidiye Faculty of Dentistry  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Selin Ertem","family":"Ayd\u0131n","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics University of Health Sciences, Hamidiye Faculty of Dentistry  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,7,8]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14068"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.11607\/ijp.consensusreport"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.3389\/fsurg.2020.537138"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcms.2025.02.032"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.4103\/njcp.njcp_398_20"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12260"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.7860\/JCDR\/2015\/11368.5655"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jormas.2023.101631"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022\u20103913(07)60005\u20105"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1708\u20108208.2012.00482.x"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12129"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016357.2012.757644"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.4103\/jips.jips_11_17"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.msec.2016.07.059"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532\u2010849X.2012.00835.x"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpor.2015.10.001"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.4103\/njcp.njcp_144_19"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2016.12.019"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2017.04.020"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.15171\/joddd.2015.044"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1080\/10255842.2019.1572120"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12380"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.4103\/jips.jips_70_20"},{"key":"e_1_2_10_25_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12903\u2010023\u201003761\u2010x"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1563\/aaid\u2010joi\u2010D\u201021\u201000022"},{"issue":"2","key":"e_1_2_10_27_1","first-page":"73","article-title":"The Mechanostat: A Proposed Pathogenic Mechanism of Osteoporoses and the Bone Mass Effects of Mechanical and Nonmechanical Agents","volume":"2","author":"Frost H. 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