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)
Table 1: Overview of an in vitro 3-dimensional finite element study
author: Andreas Schwitalla, DDS Wolf-Dieter Mller, PhD | publisher: drg. Andreas Tjandra, Sp. Perio, FISID
| 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; |
|
| Poisson ratio |
|
| 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
Serial posts: