HYDROXYAPATITE STRUCTURES AND NUMERICAL ANALYSIS OF THE GEOMETRIC CHARACTERISTICS OF THE LOWER JAW FIXATION PLATES

Abstract

Bone defect reparation can be successfully performed with biomaterials based on synthetic hydroxyapatite (HAP). In addition to collagen, hydroxyapatite is the basic structure of bone tissue and it was expected to have excellent biocompatibility. This study presents an analysis of the properties of HAP, its biocompatibility as well as its other properties that scientists tried to modify. In this study, we've listed some examples of HAP implantation and typical problems during system implementation. Using the finite element method, the influence of the geometry of the fixation plates on the stress distribution was analyzed. The analysis showed that the best characteristics were shown by large surface fixation plates, but due to the problem of connecting in the bone-implant system, the design of the minimum surface plate with two rows of screws was selected.