FEM Investigation of the Stress Distribution over Mandibular Bone Due to Screwed Overdenture Positioned on Dental Implants

Materials
Marco CicciùG Risitano

Abstract

The objective of the present investigation was to evaluate how dental implant positioning can influence the masticatory stress distribution over screwed mandibular prosthodontics restoration and over the surrounding bone tissue. Moreover, the dental implant components and overdenture bar strengths under masticatory cycles have been investigated in order to evaluate possible screw and prosthesis breakage. A "virtual jaw" model and 3D dental implant were reproduced to realise finite element analysis in order to underline the parameters and the mechanical characteristics of the bone and of the dental implants connected to the overdenture bar. The distribution of a nonspecific chewing phase, analysing the overall load on the fixtures of the lower jaw, was performed. The study investigating frontal and horizontal planes and vertical directions of occlusal forces showed how position and perspective of fixtures strongly influenced the stress distribution and the consequent jawbone tissue remodelling. Prostheses elements such as cantilever, passing screws, and dental implants are strictly related to the correct selection of dental implant position. This study suggested a virtual method to guide the surgeon in the choice of implant numb...Continue Reading

References

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Citations

Oct 2, 2020·European Journal of Dentistry·Ahmed S WalyMohamed I El-Anwar
Mar 31, 2019·Journal of Clinical Medicine·Xing YinJill A Helms
Sep 2, 2020·European Journal of Dentistry·Gabriele CervinoLuca Fiorillo
Jul 24, 2020·Minerva stomatologica·Ana P ManfronLuciana R Alanis
Aug 13, 2021·European Journal of Dentistry·Karina Tiemi Sanomya TsumanumaRafael Pino Vitti

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