Numerical analysis of bone adaptation around an oral implant due to overload stress.
A finite element (FE) numerical model of an oral implant was implemented with the theory of bone adaptation to predict the response over time of the bone tissue to the implant and to explain a phenomenon regarding the clinical situation: the bone loss due to an overload stress. An adaptation routine, based on Beaupré theory, was developed to interface with the FE packages. The value of the mechanical stimulus, corresponding to the overload stress, was evaluated by applying the Taylor crack propagation theory. The predictions obtained by the numerical analyses demonstrated that the overload resorption is blocked only with spongy bone of 'good quality'.
Crupi
V
V
Department of Industrial Chemistry and Materials Engineering, University of Messina, Salita Sperone 31, 98166 Messina, Italy. vcrupi@ingegneria.unime.it
Guglielmino
E
E
La Rosa
G
G
Vander Sloten
J
J
Van Oosterwyck
H
H
D000222:Adaptation, Physiological; D000818:Animals; D001862:Bone Resorption / Q000209:etiology / Q000503:physiopathology; D019245:Compressive Strength; D003198:Computer Simulation; D015921:Dental Implants / Q000009:adverse effects*; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis / Q000379:methods*; D004548:Elasticity; D019544:Equipment Failure Analysis / Q000379:methods*; D015775:Fractures, Stress / Q000209:etiology* / Q000503:physiopathology*; D006801:Humans; D008954:Models, Biological; D009716:Numerical Analysis, Computer-Assisted; D013314:Stress, Mechanical
D015921:Dental Implants