Comparison of biomechanical behaviour of maxilla following Le Fort 1 osteotomy with 2-versus 4-plate fixation using 3D-FEA Part 2: Impaction surgery


Atac M. S. , Erkmen E., Yucel E., Kurt A.

INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, cilt.38, sa.1, ss.58-63, 2009 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Konu: 1
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.ijom.2008.10.005
  • Dergi Adı: INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
  • Sayfa Sayıları: ss.58-63

Özet

The aim of the second part of this Study was to evaluate the mechanical behaviour of 2- versus 4-plate fixation and bony structures after Le Fort I impaction surgeries using three-dimensional finite element analysis (3D-FEA). Two 3D-FEA models were created to fixate the impacted maxilla at the Le Fort I level as 2-plate fixation at the piriform rims (IMP-2 model) and 4-plate fixation at the zygomatic buttresses and piriform rims (IMP-4 model). The IMP-2 model contained 225 664 elements and 48 754 nodes and the IMP-4 model consisted of 245 929 elements and 53 670 nodes. The stresses in each maxillary model were computed. The models were loaded on one side, at the molar-premolar region, in vertical, horizontal and oblique directions to reflect the chewing process.