AI Article Synopsis
- - The study investigates how elastic anisotropy affects stress and strain around dental implants in personalized mandibles by creating a detailed 3D model from CT data, accurately representing the bone structure.
- - An advanced mesh generator was used to produce a finite element model with anisotropic properties, incorporating two standard implants in the mandible.
- - Results showed that using anisotropic material leads to up to a 70% increase in stress and strain compared to using isotropic material, highlighting the importance of considering anisotropy in biomechanical studies.
Article Abstract
This paper reveals the influence of elastic anisotropy for the peri-implant stress and strain in personalized mandible. First, from CT data, the individual geometry of the complete range of mandible was well reproduced, also the separation between cortical and cancellous bone. Then, by an ad hoc automatic mesh generator integrated with anisotropic material assignment function, high quality anisotropic finite element model of the complete mandible was created, with two standard threaded implants embedded in posterior zone. The values of principal stress and strain in surrounding bone were evaluated under buccolingual oblique loading, and compared to that of the same FE model with equivalent isotropic material. Results of the analyses demonstrated that the percentage increase of stress and strain in anisotropic case reached up to 70%. It is concluded that anisotropy has significant effects on peri-implant stress and strain and careful consideration should be given to its use in biomechanical FE studies.
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| http://dx.doi.org/10.1016/j.compmedimag.2007.09.001 | DOI Listing |
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