The evaluation of maxillary advancement technique using internal distraction osteogenesis in unilateral cleft lip and palate patient with finite element analysis
Bildiriler > Özet Bildiri · 2011
Yazarlar: SULTAN ÖLMEZ, Servet DOĞAN, Mahmut PEKEDİS, Hasan YILDIZ
Fifth International Participated National Biomechanics Congress, Türkiye, İzmir, Ulusal, Sözlü Sunum, Özet Bildiri, 2011-2011, Wos, cilt 44, ss 13-14
DOI: 10.1016/j.jbiomech.2011.02.053
Özet
<p>The aim of this study is to evaluate the parameters that commonly used in mechanical analysis of materials like displacement, strain and von Misses stress distributions after maxillary advancement in unilateral cleft lip and palate (UCLP) patients using distraction osteogenesis.</p><p>The 3D skull model of a 20-year-old UCLP patient with normal mandibular development (SNB: 79.5o) and maxillary hypoplasia (SNA: 70.71) with negative overjet was reconstructed by using the computed tomography (CT) data. The surface mesh of the model was prepared by using the MIMICS software, and then the model was transferred into ANSYS (FE package). 854023 nodes and 623177 elements (Solid92) were used during the analysis. To obtain more realistic model, the maxillary cortical bone was defined as aniso- tropic. On the other hand the material properties of trabecular bone and callus were selected as linear, isotropic and homogenous. After a LeFort I osteotomy was performed on the model, the maxillary advancement was simulated in 6 steps with 1 mm translation in each step with a total of 6 mm displacement. Non-linear finite element analysis was used due to large deformations.</p>