Biomechanical analysis of titanium fixation plates and screws in mandibular angle fractures
1Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara, Turkey.
Objective:
The aim of this study was to evaluate the mechanical behavior of different rigid fixation methods in mandibular angle fractures.
Materials And Methods:
Three different three-dimensional finite element models of the mandible were developed to simulate the biomechanical responses of titanium plates and screws. The fracture lines were fixed with double 4-hole straight, 4-hole square, and 5-hole Y plates with monocortical screws. 150 N incisal occlusal loads were simulated on the models. The commercial ANSYS software was utilized to calculate the Von Mises stresses on fixative appliances.
Results:
The highest Von Mises stress values were observed in the Y plate, whereas the lowest stress values have been found in the square plate.
Conclusions:
The use of square plate led to better stability and lower mechanical stresses than other techniques.
