Abstract
This paper presents results from using a three-dimensional finite element model to investigate the stress level in surrouding bone as a function of implant material, diameter and length. The 32 different implant designs used in this study cover the diameter range from 3,5 to 6,5 mm, length range from 8.0 to 17.0 mm and materials - zirconia and titanium alloy. Models were subjecte to loading of 1 axial and 2 non-axial forces, all equal to 70 N. Analysis of results showed that increase in implant diametere and length generated lower stresses in both cortical and trabecular bone. Stresses in cortical bone were on average 19,1 percent lower using zirconia dental implants. Titanium dental implants resulted in 9,8 percent lower stresses in trabecular bone.DOI: http://dx.doi.org/10.5755/j01.mech.23.4.15269
Highlights
Titanium dental implants are widely used in Lithuania and all around the world
Titanium dental implants are not recommended for patients who are more susceptible to inflammatory diseases
The aim of this study is to evaluate and compare the stresses, resulted by dental implants with different materials and geometrical parameters
Summary
Titanium dental implants are widely used in Lithuania and all around the world. Recent studies suggest that some patients could be allergic to some additives of titanium alloys 1% of total cases) [1]. Specific reactions may be resulted, when small metal particles spread in surrounding tissues. Macrophages attempts to engulf and digest these particles and results in inflammatory reaction. Titanium dental implants are not recommended for patients who are more susceptible to inflammatory diseases. Regardless excellent material properties of titanium dental implants and ability to osseointegrate, titanium dental implants lack aesthetics. Silver color metal is often visible through the gums (Fig. 1)
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