Stress Distribution Pattern in Zygomatic Implants Supporting Different Superstructure Materials

The aim of this study was to assess and compare the stress–strain pattern of zygomatic dental implants supporting different superstructures using 3D finite element analysis (FEA). A model of a tridimensional edentulous maxilla with four dental implants was designed using the computer-aided design (C...

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Bibliographic Details
Published in:Materials 2022-07, Vol.15 (14), p.4953
Main Authors: Heboyan, Artak, Lo Giudice, Roberto, Kalman, Les, Zafar, Muhammad Sohail, Tribst, João Paulo Mendes
Format: Article
Language:English
Subjects:
Axial loads
Biomechanics
CAD
Communication
Computer aided design
Dental implants
Design
Design standards
Edentulous
Finite element method
Hypotheses
Intermetallic compounds
Mechanical analysis
Physiology
Polyether ether ketones
Prostheses
Rehabilitation
Simulation
Software
Software engineering
Strain
Stress concentration
Stress distribution
Superstructures
Surgical implants
Titanium alloys
Titanium base alloys
Zirconium dioxide
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Summary:The aim of this study was to assess and compare the stress–strain pattern of zygomatic dental implants supporting different superstructures using 3D finite element analysis (FEA). A model of a tridimensional edentulous maxilla with four dental implants was designed using the computer-aided design (CAD) software. Two standard and two zygomatic implants were positioned to support the U-shaped bar superstructure. In the computer-aided engineering (CAE) software, different materials have been simulated for the superstructure: cobalt–chrome (CoCr) alloy, titanium alloy (Ti), zirconia (Zr), carbon-fiber polymers (CF) and polyetheretherketone (PEEK). An axial load of 500 N was applied in the posterior regions near the zygomatic implants. Considering the mechanical response of the bone tissue, all superstructure materials resulted in homogeneous strain and thus could reconstruct the edentulous maxilla. However, with the aim to reduce the stress in the zygomatic implants and prosthetic screws, stiffer materials, such Zr, CoCr and Ti, appeared to be a preferable option.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15144953