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Finite element analysis of non‐axial versus axial loading of oral implants in the mandible of the dog
Author(s) -
Barbier L.,
Sloten J. Vander,
Krzesinski G.,
Van Der Perre E. Schepers G.
Publication year - 1998
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.1998.00318.x
Subject(s) - finite element method , von mises yield criterion , cantilever , materials science , strain energy density function , mandible (arthropod mouthpart) , stress (linguistics) , beagle , bone remodeling , prosthesis , biomechanics , implant , orthodontics , structural engineering , anatomy , medicine , composite material , surgery , engineering , biology , linguistics , philosophy , botany , genus
The influence of axial and non‐axial occlusal loads on the bone remodelling phenomena around oral implants in an animal experiment is simulated in a finite element analysis. The axial and non‐axial loading conditions were introduced by inserting a bilaterally supported fixed partial prosthesis and a cantilever fixed partial prosthesis on two IMZ ® implants in the mandible of beagle dogs. Earlier quantitative and qualitative histological analyses revealed a statistically significant different remodelling response between both loading conditions. Two‐dimensional and three‐dimensional models are built to analyse and compare von Mises equivalent stress, maximum principal stress, maximum principal strain and strain energy density distributions, first around a free‐standing implant and subsequently around the implants of the two prosthesis designs under the respective resultantin vivoloads. Strong correlations between the calculated stress distributions in the surrounding bone tissue and the remodelling phenomena in the comparative animal model are observed. It is concluded that the highest bone remodelling events coincide with the regions of highest equivalent stress and that the major remodelling differences between axial and non‐axial loading are largely determined by the horizontal stress component of the engendered stresses.