{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T09:45:30Z","timestamp":1785923130063,"version":"3.56.0"},"reference-count":40,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T00:00:00Z","timestamp":1785888000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dent. J.","Dentistry Journal"],"abstract":"<jats:p>Background: Full-arch implant-supported prostheses, including configurations such as All-on-4, All-on-5, and All-on-6, are widely used for the rehabilitation of the atrophic edentulous mandible; however, their biomechanical performance remains a critical factor for long-term success. Aim\/Objectives: To evaluate and compare von Mises stress distribution and deformation patterns among mandibular All-on-4, All-on-5, and All-on-6 configurations using three-dimensional finite element analysis. Methods: The three-dimensional finite element models of an atrophic edentulous mandible were developed to simulate All-on-4 (Model 1), All-on-5 (Model 2), and All-on-6 (Model 3) implant-supported prostheses under standardized loading conditions (150 N anterior; 300 N posterior bilaterally). Von Mises stress (overall, implant, and bone) and total deformation were assessed. The results were analyzed using descriptive statistics, and a comparative evaluation of von Mises stress and deformation values was performed across the three implant configurations. Results: Model 2 exhibited the highest overall von Mises stress (76.821 MPa), followed by Model 3 (67.996 MPa) and Model 1 (38.016 MPa). Bone stress was lowest in Model 1 (5.787 MPa) and highest in Model 2 (16.443 MPa). Total deformation was greatest in Model 2 (3.156 \u00d7 10\u22123 mm), whereas Model 3 showed the least deformation (8.2489 \u00d7 10\u22124 mm). Conclusions: Within the limitations of this study, the All-on-5 configuration demonstrated the highest stress concentration and deformation under the present loading conditions. Increasing implant number does not linearly reduce stress. Among the three evaluated configurations, the modeled All-on-6 configuration demonstrated the lowest deformation under the present loading conditions. Implant positioning and load distribution play a more critical role than implant number alone. The findings are based on a specific finite element model and implant distribution and should not be generalized to all clinical All-on-5 configurations.<\/jats:p>","DOI":"10.3390\/dj14080480","type":"journal-article","created":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T08:14:46Z","timestamp":1785917686000},"page":"480","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Biomechanical Comparative Evaluation of the Atrophic Edentulous Mandible Using All-on-4, All-on-5 and All-on-6 Concepts: A Finite Element Analysis"],"prefix":"10.3390","volume":"14","author":[{"given":"Abhay","family":"Datarkar","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital Nagpur, Nagpur 440003, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neha Ganpat","family":"Pawar","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital Nagpur, Nagpur 440003, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Prashant K.","family":"Pandilwar","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital Nagpur, Nagpur 440003, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ihsan Caglar","family":"Cinar","sequence":"additional","affiliation":[{"name":"Department of Oral Implantology, Faculty of Dentistry, Istanbul University, Fatih, Istanbul 34098, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1661-7529","authenticated-orcid":false,"given":"Eitan","family":"Mijiritsky","sequence":"additional","affiliation":[{"name":"Department of Head and Neck Surgery and Maxillofacial Surgery, Tel-Aviv Sourasky Medical Center, School of Dental Medicine, Gray Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv 64239, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1016\/S0300-9785(81)80077-4","article-title":"A 15-year study of osseointegrated implants in the treatment of the edentulous jaw","volume":"10","author":"Adell","year":"1981","journal-title":"Int. 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