Stress distribution and prosthesis deformation analysis of different bar materials considering weight in trefoil implant system under various loading conditions: a finite element study

TUZLALI M., BAKİ N.

Computer Methods in Biomechanics and Biomedical Engineering, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1080/10255842.2025.2584392
  • Dergi Adı: Computer Methods in Biomechanics and Biomedical Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Compendex, EMBASE, INSPEC, MEDLINE
  • Anahtar Kelimeler: bar, finite element analysis, prosthesis, titanium, Trefoil implant, zirconia
  • İnönü Üniversitesi Adresli: Evet

Özet

This study evaluated seven bar materials—Titanium (Ti), Cobalt-Chromium (Co-Cr), Zirconia (Zr), Polyetheretherketone (PEEK), Carbon-Fiber-Reinforced PEEK (CFR-PEEK), 3D-printed resin (3D-Pr), and Polymethyl methacrylate (PMMA)—in the Trefoil implant system using three-dimensional finite element analysis under vertical and oblique loads. Stress distribution and prosthesis deformation were analyzed, and a Performance Index combining mass and deformation was calculated. Bar material mainly influenced deformation: metallic bars (Ti, Co-Cr, Zr) showed minimal, while non-metallic (3D-Pr, PMMA) showed higher deformation. Titanium had the best performance, followed by zirconia and CFR-PEEK. Selecting optimal bar materials enhances biomechanical efficiency in Trefoil prostheses.