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Postoperative relapse remains a concern, particularly after large maxillary advancements, highlighting the importance of rigid fixation. This study aimed to determine which fixation technique provides the greatest rigidity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this in vitro study, the biomechanical rigidity of five commonly used fixation techniques for Le Fort I osteotomies was evaluated using 150 polyurethane specimens with advancements of 5\u00a0mm and 10\u00a0mm. The techniques included two L-plates (A), four L-plates of different thicknesses (B and C), two precontoured Le Fort I plates (D), and a hybrid configuration with two precontoured Le Fort I plates combined with two L-plates (E). Resistance to vertical displacement was measured at 1, 3, and 5\u00a0mm using a biomechanical testing machine.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Fixation E consistently showed the highest resistance across both advancement distances and all displacement intervals, significantly outperforming fixations A, C, and D. Fixation B demonstrated resistance comparable to fixation E, whereas fixation C showed inferior performance despite a similar configuration. Fixations A and D showed the lowest resistance, particularly at 10\u00a0mm advancement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Overall, fixation E provided the greatest rigidity, while techniques relying on only two plates were biomechanically less effective. Further clinical studies are required to determine the clinical relevance of these findings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10006-026-01596-8","type":"journal-article","created":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:41:55Z","timestamp":1784259715000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["In vitro comparison of fixation techniques for stabilization of Le Fort I osteotomy in short and large advancements of the maxilla"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-7149-0155","authenticated-orcid":false,"given":"Misha L.","family":"Tan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Max P.A.","family":"Balkenende","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Damir","family":"Delic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karel","family":"Kuik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cornelis J.","family":"Kleverlaan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"de Lange","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean-Pierre T.F.","family":"Ho","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,17]]},"reference":[{"issue":"2","key":"1596_CR1","doi-asserted-by":"publisher","first-page":"156","DOI":"10.1016\/j.jormas.2020.05.011","volume":"122","author":"E Beyler","year":"2021","unstructured":"Beyler E, Alt\u0131parmak N, Bayram B (2021) Comparison of the postoperative stability after repositioning of the maxilla with Le Fort I osteotomy using four- versus two-plate fixation. 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