Research Article
FEM Analysis of Mandibular Prosthetic Overdenture Supported by Dental Implants: Evaluation of Different Retention Methods
Table 1
Mechanical properties of the materials used in the study.
| | Mechanical properties of the materials | | | Titanium grade 4 | Titanium alloy Ti6Al4V | Cortical bone | Cancellous bone | Elitor |
| | Density [kg/m3] | 4510 | 4419 | 1800 | 1200 | 15000 |
| | Young’s modulus () [Mpa] | 105000 | 108000 | 9600 () | 144 () | 95000 | | 9600 () | 99 () | | 17800 () | 344 () |
| | Tangent elastic modulus () [Mpa] | — | — | 3097 () | 53 () | — | | 3510 () | 63 () | | 3510 () | 45 () |
| | Poisson’s ratio () | 0,37 | 0,37 | 0,55 () | 0,23 () | 0,35 | | 0,3 () | 0,11 () | | 0,3 () | 0,13 () |
| | Tensile yield strength () [Mpa] | 485 | 830 | 115 | 32,4 | 700 |
| | Tensile ultimate strength () | 550 | 900 | 133 | 37,5 | 855 |
| | Compressive yield strength () [Mpa] | 485 | 830 | 182 | 51 | 700 |
| | Compressive ultimate strength () [Mpa] | — | — | 195 | 55 | — |
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: maximus value of stress.
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