17 August 2023 : Clinical Research
Comparative Stress Analysis of Custom-Made PEEK Dental Post-Cores versus Conventional Post-Cores in Incisor Restorations: A Finite Element Study
Semsettin Yildiz1ABD, Samet Tekin
2BCFG*, Ayşe Rençber Kizilkaya 2EF, Semih Ercan Akgün 3EG, Yalcin Deger4CDFG
DOI: 10.12659/MSM.940887
Med Sci Monit 2023; 29:e940887
Table 1 Mechanical properties of the materials used in the finite element analysis model.
| Material | Elastic modulus [GPa] | Poisson’s ratio |
|---|---|---|
| Unfilled PEEK | 3.5 | 0.36 |
| GFR PEEK | 12 | 0.40 |
| CFR PEEK | 18 | 0.39 |
| Zirconia | 210 | 0.23 |
| Ni-Cr | 200 | 0.33 |
| Cortical bone | 13.7 | 0.30 |
| Trabecular bone | 1.37 | 0.30 |
| Lithium disilicate (crown) | 83.5 | 0.21 |
| PDL | 0.0689 | 0.45 |
| Resin cement | 18.3 | 0.30 |
| Dentin | 18.6 | 0.31 |
| Gutta-Percha | 6.9×10 | 0.45 |
| * Unfilled PEEK-unfilled polyetheretherketone; GFR-PEEK – glass fiber-reinforced polyetheretherketone; CFR-PEEK – carbon fiber-reinforced polyetheretherketone; Ni-Cr – nickel chromium metal; PDL – periodontal ligament. | ||