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

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

INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, vol.37, no.12, pp.1117-1124, 2008 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 12
  • Publication Date: 2008
  • Doi Number: 10.1016/j.ijom.2008.10.004
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1117-1124
  • Keywords: 3D finite element analysis, Le Fort I osteotomy, advancement surgery, internal fixation, FINITE-ELEMENT-ANALYSIS, PLATING SYSTEMS, STABILITY, PATTERNS, STRENGTH, TITANIUM, PLATES
  • Gazi University Affiliated: Yes


The study aimed to calculate the location and intensity of the maximum stress fields on the fixation plates and surrounding maxilla following Le Fort I osteotomies after advancement procedures using three-dimensional finite element analysis. The models were generated using skull CT scan data. Le Fort I osteotomy Simulations were made and two separate impacted maxillary models were designed. The ADV-2 model has 2 plate fixations bilaterally at the piriform rims, the ADV-4 model has 4 plate fixations at the zygomatic buttresses and piriform rims. The stress fields on bone, plate and screws were computed for each model.