Biomechanical stability analysis in the plate-niting of the mandibular angle

The purpose of this study was to compare the biomechanical stability of two types of plating (osteosynthesis) used to fix fractures of the mandibular angle. The fixation systems included: (1) a single six-hole miniplate; (2) two miniplates - six-hole as before and an additional four-hole miniplate. All plates and screws used in this experiment were made of stainlees steel (Champy type). A simple angle fracture was made in the mandible models at a standardized location. The stability of the fixations was measured using the holographic interferometry method. Displacements of mandibular bone fragments were examined.