DOI: 10.18503/1995-2732-2022-20-1-71-82
Abstract
Problem Statement (Relevance). In addition to the aggressive internal human body environment, an implant’s useful life is influenced by bone tissue stress shielding, when the stress concentration is localized in the implant volume near the bone interface. It leads to bone loosening and implant failure; however, the implant surface layer isn’t affected. Some studies show that coatings with low Young's modulus change force distribution between the implant and adjacent bone tissue, decreasing the effect of stress shielding. An electroexplosive method, intensively developing nowadays, is used for spraying various coatings, including Ti-Zr и Ti-Nb bioinert coatings with low Young’s modulus. Methods Applied. The 2D models were developed in COMSOL Multiphysics® 5.5 to evaluate the effect of Ti-Zr and Ti-Nb bioinert coatings on the stress distribution. Originality. In the present work, for the first time, we have carried out a computer modelling of the stress-strain state of bone tissue located near the implant with an electro-explosive Ti-Zr or Ti-Nb coating. Results. The modeling has shown that the stresses are distributed more uniformly as compared to an uncoated model. The most significant effect among the coatings under study was achieved in modelling the system with an intermediate layer from a Ti-Zr bioinert coating. Practical Relevance. Despite the simplicity of the studied models, it is possible to conclude with high confidence that electroexplosive bioinert coatings can be applied in implants.
Keywords
bioinert coating, computer modelling, electroexplosive spraying, titanium, zirconium, niobium, stress.
The research was conducted as part of State Order No. 0809-2021-0013.
For citation
Filyakov A.D., Romanov D.A., Budovskikh E.A. The Effect of Bioinert Electroexplosive Coatings on Stress Dis-tribution near the Dental Implant-Bone Interface. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2022, vol. 20, no. 1, pp. 71–82. https://doi.org/10.18503/1995-2732-2022-20-1-71-82
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