Table 1: Overview of an in vitro 3-dimensional finite element study|palmerah.implantgigi.com

Author

Sarot et al

Year of publication

2009

Implantation site

Virtual 3-dimensional model of a lower jawa of region 35, based on a randomly chosen computerized tomography scan with a total of 212 transversal slices wit 0.25 mm in length, consisting of medullar bone covered by a 1.0-mm thick layer of cortical bone, designed with the software Ansys DesignModeler v11 (ANSYS Inc, Canonsburg, PA)

Simulation software

Ansys Workbench V11 finite elements simulation software (ANSYS Inc)

Implant design

Screwed cylindrical implant with a hexagon connection

Implant dimensions, mm

Diameter: 4.1; length: 10

Surface modification

N.R.

Roughness RA, μm

N.R.

Abutment design

Outer hexagon

Abutment dimensions, mm

4.1, bottom platform with upper conic portion

Connection abutment/ implant

Titanium bolt with screws in the lower third

Prosthesis

Chrome-cobalt structure with a thickness of at least 0.3 mm, covered by feldsplathic porcelain with coronary share, an approximately 0.1-mm thick line of zinc phosphate cements was located between prosthesis and abutment

Implant material

Titanium

CFR-PEEK with 30% carbon fiber

Elastic modulus, GPa;

110

Poisson ratio

0.35

0.39

Abutment material

Titanium

CFR-PPEK

Titanium

CFR-PEEK

Stress peaks in the different structures with vertical loads in relation to the long axes of the tooth with 100 N in magnitude, MPa

von Mises implant 76.46;
von Mises abutment 41.76;
tensil cortical/ medullar 32.70/ 2.48,
compression cortical/ medullar 81.14/3.19

von Mises implant 74.70;
von Mises abutment 33.82;
tensile cortical/ medullar 32.70/2.47,
compression cortical/ medullar 81.04/3.19

von Mises implant 85.54;
von Mises abutment 41.32;
tensile cortical/medullar
27.77/4.22, compression cortical/ medullar 89.47/ 3.58

von Mises implant 86.61;
von Mises abutment 33.96;
tensile cortical/ medullar 27.90/ 4.2,
compression cortical/ medullar 86.57/3.6

Tension peaks in the different structures with oblique load direction (30 deg) in relation to the long axis of the tooth with 100 N in magnitude, MPa

von Mises implant 171.42;
von Mises abutment 84.82;
tensile cortical/ medullar 22.02/ 2.65,
compression cortical/ medullar 146.26/ 3.95

von Mises implant 172.02;
von Mises abutment 69.96;
tensile cortical / medullar 21.85 / 2.65, compression cortical/ medullar 146.04 / 3.96

von Mises implant 188.95;
von Mises abutment 84.17;
tensile cortical/ medullar 58.82/ 4.90,
compression cortical/ medullar 177.81/ 6.42

von Mises implant 189.72;
von Mises abutment 69.41;
tensile cortical/ medullar 57.53/ 4.89, compression cortical/ medullar 177.58/ 6.44

N.R. indicated nor reported

Table 1: Overview of an in vitro 3-dimensional finite element study

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