Comparative compressive behavior of FDM-printed PLA lattice scaffolds: FCC, RF, OT
Polimeros, cilt.36, sa.4, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 36 Sayı: 4
- Basım Tarihi: 2026
- Doi Numarası: 10.1590/0104-1428.20260019
- Dergi Adı: Polimeros
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, Directory of Open Access Journals
- Anahtar Kelimeler: biomaterials, bone scaffold, lattice architecture, PLA, stress shielding
- Sivas Cumhuriyet Üniversitesi Adresli: Evet
Özet
Porous PLA-based bone scaffolds with tailored lattice architectures are increasingly investigated for biomedical applications due to their potential to mimic the mechanical behavior of trabecular bone. The novelty of this study lies in systematically comparing FCC, RF, and OT lattice geometries using PLA, identical FDM process parameters, unit-cell dimensions and strut diameter, and compression test conditions. Scaffolds were fabricated via Fused Deposition Modeling (FDM) and evaluated through finite element simulations and compression tests. Pore densities were 55.72% (FCC), 72.62% (RF), and 85.68% (OT), within the reported range of human trabecular bone. Experimental compressive modulus values were 192.186 MPa (FCC), 97.418 MPa (RF), and 62.162 MPa (OT), demonstrating strong topology-dependent mechanical behavior. These findings provide preliminary mechanical evidence and design insights regarding scaffold performance. However, the results should be interpreted within the scope of mechanical evaluation only and do not provide direct biological validation or evidence of clinical applicability.