Pala, E.; Ozdemir, I.; Grund, T.; Lampke, T. The Influence of Design on Stress Concentration Reduction in Dental Implant Systems Using the Finite Element Method. Crystals2024, 14, 20.
Pala, E.; Ozdemir, I.; Grund, T.; Lampke, T. The Influence of Design on Stress Concentration Reduction in Dental Implant Systems Using the Finite Element Method. Crystals 2024, 14, 20.
Pala, E.; Ozdemir, I.; Grund, T.; Lampke, T. The Influence of Design on Stress Concentration Reduction in Dental Implant Systems Using the Finite Element Method. Crystals2024, 14, 20.
Pala, E.; Ozdemir, I.; Grund, T.; Lampke, T. The Influence of Design on Stress Concentration Reduction in Dental Implant Systems Using the Finite Element Method. Crystals 2024, 14, 20.
Abstract
Dental implant fracture is closely connected to the stress buildup surrounding the implant system during static loading. In areas where the cross section of the implant rapidly changes or where the geometry of the implant system has discontinuities, stress concentrations arise. Therefore, the implant's design is crucial in preventing early failure of the implant system, including fracture, screw loosening, and increased leakage, in addition to reducing stresses at the implant-abutment interface. In the current work, three-dimensional (3D) models of mechanically connected Ti6Al4V implant systems in various dimensions were constructed. Finite Element Analysis (FEA) was used to conduct a stress study of the created implants under actual acting forces static loading conditions in accordance with ISO 14801. In the created models, design elements including implant screw type, thickness, and taper angle of abutment were modified in order to increase the longevity of the implants. The results show that the equivalent stress level is dramatically reduced from 596.22 MPa to 212.72 MPa in the implant model, which exhibit more homogeneous stress pattern under static loading conditions. Furthermore, the relatively smoother stress transmission observed in this model holds promise for the development of new implants capable of withstanding the forces encountered in the oral environment.
Keywords
FEM analysis, stress distribution, Ti6Al4V alloy, dental implant, design
Subject
Chemistry and Materials Science, Biomaterials
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
