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This study aims to compare the biomechanical performance of two stock implants (narrow and standard) under unilateral and bilateral clenching during both osseointegrated and non-osseointegrated conditions. Finite element models of a human mandible were developed from QCT data, with the left TMJ being replaced by the implants. Six clenching tasks were simulated to evaluate stress and strain distributions in the mandible and implants. Ipsilateral clenching produced higher mandibular strains, while contralateral clenching generated larger implant stresses. Furthermore, intercuspal biting was found to have produced the highest strain (1750\u20131880\u2009\u00b5\u03b5) and stress (\u223c17\u2009MPa) in the mandible. Osseointegration reduced stresses (up to 0.14\u2009MPa) and strains (up to 30\u2009\u00b5\u03b5) in mandible as well as stresses in mandibular components (up to 48\u2009MPa) and screws (up to 71\u2009MPa). However, during non-osseointegrated conditions, stresses in cortical bone were higher for standard TMJ implant as compared to narrow implant. This suggests possible preference of narrow implant over standard ones.<\/jats:p>","DOI":"10.1177\/09544119251342019","type":"journal-article","created":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T06:30:37Z","timestamp":1748327437000},"page":"560-573","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Biomechanical evaluation of temporomandibular joint implants and periprosthetic bone under unilateral and bilateral clenching"],"prefix":"10.1177","volume":"239","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1185-2060","authenticated-orcid":false,"given":"Rajdeep","family":"Ghosh","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"},{"name":"School of Mechanical, Aerospace and Civil Engineering, The University of Sheffield, Sheffield, UK"},{"name":"Insigneo Institute, The University of Sheffield, Sheffield, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6622-1242","authenticated-orcid":false,"given":"Girish","family":"Chandra","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vivek","family":"Verma","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"},{"name":"Department of Mechanical Engineering, Indian Institute of Technology Patna, Patna, BR, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kamalpreet","family":"Kaur","sequence":"additional","affiliation":[{"name":"Department of Oral &amp; Maxillofacial Surgery CDER, All India Institute of Medical Sciences, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ajoy","family":"Roychoudhury","sequence":"additional","affiliation":[{"name":"Department of Oral &amp; Maxillofacial Surgery CDER, All India Institute of Medical Sciences, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sudipto","family":"Mukherjee","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anoop","family":"Chawla","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaushik","family":"Mukherjee","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, DL, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,5,27]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jobcr.2021.05.006"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2014.08.012"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdsr.2020.03.001"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.h1154"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcms.2018.07.002"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2011.09.031"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.actbio.2016.01.001"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2007.09.013"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.20517\/2573-0002.2018.25"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1054\/ijom.2002.0350"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2017.08.022"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/ajpa.1330880107"},{"key":"e_1_3_3_14_2","unstructured":"Korioth TW Hannam AG. 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