title: Numerical simulation of bone remodelling around dental implants.
abstract: Crestal bone loss can result in the failure of dental implants and can be caused, by among other factors, the development of non-physiological mechanical conditions. Bone remodelling (BR) is the physiological process through which bone adapts itself to the mechanical environment. A previously published mathematical model of BR is used in this work to study the homogenized structural evolution of peri-implant bone. This model is used to study the influence of the diameter and length of a dental implant of pure titanium on its long-term stability. The temporal evolution of porosity and microstructural damage of the peri-implant bone are the variables analysed in this study. The results show that damage and porosity increase as the implant length decreases and, more pronouncedly, as its diameter decreases. The increase in damage and porosity levels is localized, as many other studies confirm, at the implant neck due to the stress concentration that is created in that area. The main conclusion of this study is that in implants with a diameter equal to or greater than 3 mm the damage is under control and there is no mechanical failure of the peri-implant bone in the long term.
authors: Department of Mechanical Engineering, University of Seville, Seville, Spain. joaquinojeda@us.es
authors: J
authors: J
authors: Ojeda
authors: J
authors: J
authors: Martínez-Reina
authors: J M
authors: JM
authors: García-Aznar
authors: J
authors: J
authors: Domínguez
authors: M
authors: M
authors: Doblaré
mesh_terms: D000465:Algorithms; D016301:Alveolar Bone Loss / Q000473:pathology*; D016723:Bone Remodeling / Q000502:physiology*; D003198:Computer Simulation; D015921:Dental Implants; D006801:Humans; D013314:Stress, Mechanical
chemical_list: D015921:Dental Implants