Biomechanical testing of zirconium dioxide osteosynthesis system for Le Fort I advancement osteotomy fixation. (January 2018)

• Record Type: Journal Article
• Authors: Hingsammer, Lukas; Grillenberger, Markus; Schagerl, Martin; Malek, Michael; Hunger, Stefan
• Is Part Of: Journal of the mechanical behavior of biomedical materials. Volume 77(2018)
• Page Start: 34
• Page End: 39
• Publication Date: 2018-01
• Subjects: Maxillofacial surgery -- Patient specific implants -- Zirconium dioxide -- Osteosynthesis system; Biomedical materials -- Periodicals; Biomedical materials -- Mechanical properties -- Periodicals; Biomedical materials; Biomedical materials -- Mechanical properties; Periodicals; Electronic journals; 610.28
• DOI: 10.1016/j.jmbbm.2017.09.004
• Languages: English
• ISSNs: 1751-6161

Abstract

Abstract: The following work is the first evaluating the applicability of 3D printed zirconium dioxide ceramic miniplates and screws to stabilize maxillary segments following a Le-Fort I advancement surgery. Conventionally used titanium and individual fabricated zirconium dioxide miniplates were biomechanically tested and compared under an occlusal load of 120 N and 500 N using 3D finite element analysis. The overall model consisted of 295, 477 elements. Under an occlusal load of 500 N a safety factor before plastic deformation respectively crack of 2.13 for zirconium dioxide and 4.51 for titanium miniplates has been calculated. From a biomechanical point of view 3D printed ZrO2 mini-plates and screws are suggested to constitute an appropriate patient specific and metal-free solution for maxillary stabilization after Le Fort I osteotomy. Graphical abstract: