AbstractsBiology & Animal Science

Microstructural adaptation of bone tissue of the facialskeleton to the distribution of occlusal load in dentulous subjectsand its role in the development of the facial fractures

by Aleksa 1983- Janović




Institution: Univerzitet u Beogradu
Department:
Year: 2015
Keywords: кост; фацијални скелет; трајекторије; микроархитектура; метод коначних елемената; оклузално оптерећење; Le Fortфрактуре
Posted: 02/05/2017
Record ID: 2124614
Full text PDF: https://fedorabg.bg.ac.rs/fedora/get/o:9961/bdef:Content/get


Abstract

Medicine - Skeletal biology / медицина - биологија скелета (остеологија) Occlusal forces have traditionally been explained to transfer through the facial skeleton along specific osseous trajectories known as buttresses. These regions were assumed as zones of strength due to their thick cortical bone structure, while the areas between the buttresses containing thin cortical bone were considered weak and fragile. However, recent studies revealed that both cortical and trabecular bone of the mid-facial skeleton of dentulous individuals exhibit remarkable regional variations in structure and elastic properties. These variations have been frequently suggested to result from the different involvement of cortical and trabecular bone in the transfer of occlusal forces, although there has been no study to link bone microarchitecture to the occlusal loading. Moreover, although the classical concept of buttresses has been extensively studied by mechanical methods, such as finite element (FE) analysis, there is still no direct evidence for occlusal load distribution through the cortical and trabecular bone compartments individually. Additionally, relatively less scientific attention has been paid to the investigation of bone structure along Le Fort fracture lines that have traditionally been assumed as weak areas at which the mid-facial skeleton commonly fractures after injury. Papers published so far in this field focused mainly on the epidemiology and the role of injury mechanism in the fracture development, without considering the structural basis of increased bone fragility along the Le Fort fracture lines... Advisors/Committee Members: Đurić, Marija, 1958-.