Comparative Stress Analysis of Custom-Made PEEK Dental Post-Cores versus Conventional Post-Cores in Incisor Restorations: A Finite Element Study

17 August 2023: Clinical Research

Semsettin Yildiz ^1ABD , Samet Tekin ^2BCFG* , Ayşe Rençber Kizilkaya ^2EF , Semih Ercan Akgün ^3EG , Yalcin Deger ^4CDFG

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.