Simulation Analysis of Internal Stresses in Implant Screws

Vörös, Ádám and Peske, Csanád and Kulcsár Talabérné, Klaudia (2025) Simulation Analysis of Internal Stresses in Implant Screws. ACTA MATERIALIA TRANSYLVANICA (EN), 8 (2). pp. 105-112. ISSN 2601-8799

Preview

Text Acta2025-2-EN-10-Voros.pdf - Published Version Download (1MB) | Preview

Abstract

The aim of this study was to investigate the failure of titanium alloy fixation screws (connecting the implant and the abutment) used in custom-made subperiosteal implants. Once the cause of failure was determined, our main objective was to determine the maximum tightening torque for the existing design. To achieve this, 3D CAD screw models were examined using finite element software. Based on the results obtained, we were able to recommend a tightening torque interval to the screw manufacturer that was guaranteed not to lead to failure (provided that the screws are manufactured according to the dimensional tolerances specified in the drawing). Our secondary objective was to improve the design of the screw to ensure that the failure could be fully eliminated. In this paper we will describe the failure mode, its cause, the methodology of our investiga tion, the results obtained, the conclusions drawn and finally, future research opportunities.

Actions (login required)

Edit Item