Abstract
The maxillo-facial reconstructive surgery very often uses regular shape biocompatible material plates which are fastened by screws to the rest of the bone. The choice of optimal plate for each case, especially in risk cases, should be made primarily according to surgeon medical experience but also following a strength analysis of the various existing plates. The analysis of mechanical structures by using the finite element method highlights the resistance, the risky areas in case of possible demands such as the jaw’s pressure on the mandible, allowing the physician to optimize the restorative solution. Keywords: finite element, osteosynthesis